| Wisconsin                       | 39-0667110          |
|---------------------------------|---------------------|
| (State or other jurisdiction of | (I.R.S. Employer    |
| Incorporation or organization)  | Identification No.) |
|                            |                |

----

| Part I. | FINANCIAL INFORMATION |
|---------|-----------------------|

| Item 1. | Financial Statements |
|---------|----------------------|

|                                                                        |   | September 24, |    |   | June 30, |   |
|-----------------------------------------------------------------------------|--------|---------------|---------|--------|----------|--------|
|                                                                        |   | 2010          |    |   | 2010     |   |
| Assets                                                                      |   |          |    |   |     |   |
| Current assets:                                                             |   |          |    |   |     |   |
| Cash                                                                        |   | $             | 23,114  |   |     | $      | 19,022 |   |
| Trade accounts receivable, net                                              |   |          | 46,918  |   |     |   | 43,014 |   |
| Inventories, net                                                            |   |          | 77,458  |   |     |   | 72,799 |   |
| Deferred income taxes                                                       |   |          | 5,597   |   |     |   | 5,224 |   |
| Other                                                                       |   |          | 8,087   |   |     |   | 7,391 |   |
| Total current assets                                                        |   |          | 161,174 |   |     |   | 147,450 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Property, plant and equipment, net                                          |   |          | 59,361  |   |     |   | 58,243 |   |
| Goodwill, net                                                               |   |          | 16,813  |   |     |   | 16,440 |   |
| Deferred income taxes                                                       |   |          | 22,633  |   |     |   | 24,029 |   |
| Intangible assets, net                                                      |   |          | 6,342   |   |     |   | 6,268 |   |
| Other assets                                                                |   |          | 6,845   |   |     |   | 6,626 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Total assets                                                                |   | $             | 273,168 |   |     | $      | 259,056 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Liabilities and Equity                                                      |   |          |    |   |     |   |   |   |
| Current liabilities:                                                        |   |          |    |   |     |   |   |   |
| Short-term borrowings and current maturities of long-term debt              |   | $             | 3,987   |   |     | $      | 3,920 |   |
| Accounts payable                                                            |   |          | 26,894  |   |     |   | 23,842 |   |
| Accrued liabilities                                                         |   |          | 33,932  |   |     |   | 35,545 |   |
| Total current liabilities                                                   |   |          | 64,813  |   |     |   | 63,307 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Long-term debt                                                              |   |          | 28,852  |   |     |   | 27,211 |   |
| Accrued retirement benefits                                                 |   |          | 72,394  |   |     |   | 72,833 |   |
| Deferred income taxes                                                       |   |          | 3,914   |   |     |   | 3,914 |   |
| Other long-term                                                             |   |          | 3,500   |   |     |   | 2,472 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Total liabilities                                                           |   |          | 173,473 |   |     |   | 169,737 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Equity                                                                      |   |          |    |   |     |   |   |   |
| Twin Disc shareholders’ equity:                                       |   |          |    |   |     |   |   |   |
| Common shares authorized: 30,000,000;                                       |   |          |    |   |     |   |   |   |
| issued: 13,099,468; no par value                                            |   |          | 9,664   |   |     |   | 10,667 |   |
| Retained earnings                                                           |   |          | 149,302 |   |     |   | 147,438 |   |
| Accumulated other comprehensive loss                                        |   |          | (34,140 | )      |     |   | (42,048 | ) |
|                                                                        |   |          | 124,826 |   |     |   | 116,057 |   |
| Less treasury stock, at cost (1,786,462 and 1,901,242 shares, respectively) |   |          | 25,933  |   |     |   | 27,597 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Total Twin Disc shareholders' equity                                        |   |          | 98,893  |   |     |   | 88,460 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Noncontrolling interest                                                     |   |          | 802     |   |     |   | 859 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Total equity                                                                |   |          | 99,695  |   |     |   | 89,319 |   |
|                                                                        |   |          |    |   |     |   |   |   |
| Total liabilities and equity                                                |   | $             | 273,168 |   |     | $      | 259,056 |   |

----

|                                                                                            |   | Three Months Ended |   |
|-------------------------------------------------------------------------------------------------|--------|--------------------|--------|
|                                                                                            |   | September 24,      |   |   | September 25, |   |
|                                                                                            |   | 2010               |   |   | 2009 |   |
|                                                                                            |   |               |   |   |   |   |
| Net sales                                                                                       |   | $                  | 61,395 |   |   | $ | 47,057 |   |
| Cost of goods sold                                                                              |   |               | 41,372 |   |   |   | 37,310 |   |
| Gross Profit                                                                                    |   |               | 20,023 |   |   |   | 9,747 |   |
|                                                                                            |   |               |   |   |   |   |   |   |
| Marketing, engineering and administrative expenses                                              |   |               | 14,777 |   |   |   | 12,778 |   |
| Earnings (loss) from operations                                                                 |   |               | 5,246  |   |   |   | (3,031 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Interest expense                                                                                |   |               | 439    |   |   |   | 619 |   |
| Other expense,  net                                                                   |   |               | 554    |   |   |   | 60 |   |
|                                                                                            |   |               | 993    |   |   |   | 679 |   |
|                                                                                            |   |               |   |   |   |   |   |   |
| Earnings (loss) before income taxes and noncontrolling interest                                 |   |               | 4,253  |   |   |   | (3,710 | ) |
| Income taxes                                                                                    |   |               | 1,556  |   |   |   | (1,398 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Net earnings (loss)                                                                             |   |               | 2,697  |   |   |   | (2,312 | ) |
| Less: Net earnings attributable to noncontrolling interest, net of tax                          |   |               | (41    | ) |   |   | (92 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Net earnings (loss) attributable to Twin Disc                                                   |   | $                  | 2,656  |   |   | $ | (2,404 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Dividends per share                                                                             |   | $                  | 0.0700 |   |   | $ | 0.0700 |   |
|                                                                                            |   |               |   |   |   |   |   |   |
| Earnings per share data:                                                                        |   |               |   |   |   |   |   |   |
| Basic earnings (loss) per share attributable to Twin Disc common shareholders                   |   | $                  | 0.24   |   |   | $ | (0.22 | ) |
| Diluted earnings (loss) per share attributable to Twin Disc common shareholders                 |   | $                  | 0.24   |   |   | $ | (0.22 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Weighted average shares outstanding data:                                                       |   |               |   |   |   |   |   |   |
| Basic shares outstanding                                                                        |   |               | 10,882 |   |   |   | 11,137 |   |
| Dilutive stock awards                                                                           |   |               | 218    |   |   |   | - |   |
|                                                                                            |   |               |   |   |   |   |   |   |
| Diluted shares outstanding                                                                      |   |               | 11,100 |   |   |   | 11,137 |   |
|                                                                                            |   |               |   |   |   |   |   |   |
| Comprehensive income:                                                                           |   |               |   |   |   |   |   |   |
| Net earnings (loss)                                                                             |   | $                  | 2,697  |   |   | $ | (2,312 | ) |
| Adjustment for amortization of net actuarial loss and prior service cost, net of  tax |   |               | 553    |   |   |   | 447 |   |
| Foreign currency translation adjustment                                                         |   |               | 7,395  |   |   |   | 2,928 |   |
| Comprehensive income                                                                            |   |               | 10,645 |   |   |   | 1,063 |   |
| Comprehensive income attributable to noncontrolling interest                                    |   |               | (41    | ) |   |   | (92 | ) |
|                                                                                            |   |               |   |   |   |   |   |   |
| Comprehensive income attributable to Twin Disc                                                  |   | $                  | 10,604 |   |   | $ | 971 |   |

| The notes to condensed consolidated financial statements are an integral part of these statements. |
|----------------------------------------------------------------------------------------------------|

----

|                                             |   | Three Months Ended |   |
|--------------------------------------------------|--------|--------------------|--------|
|                                             |   | September 24,      |   |   | September 25, |   |
|                                             |   | 2010               |   |   | 2009 |   |
|                                             |   |               |   |   |   |   |
| Cash flows from operating activities:            |   |               |   |   |   |   |
| Net earnings (loss)                              |   | $                  | 2,697  |   |   | $ | (2,312 | ) |
| Adjustments to reconcile net earnings (loss) to  |   |               |   |   |   |   |   |   |
| net cash provided by operating activities:       |   |               |   |   |   |   |   |   |
| Depreciation and amortization                    |   |               | 2,272  |   |   |   | 2,375 |   |
| Other non-cash changes, net                      |   |               | 1,713  |   |   |   | 277 |   |
| Net change in working capital, excluding cash    |   |               | (2,601 | ) |   |   | 8,203 |   |
|                                             |   |               |   |   |   |   |   |   |
| Net cash provided by operating activities        |   |               | 4,081  |   |   |   | 8,543 |   |
|                                             |   |               |   |   |   |   |   |   |
| Cash flows from investing activities:            |   |               |   |   |   |   |   |   |
| Acquisitions of fixed assets                     |   |               | (1,247 | ) |   |   | (1,031 | ) |
| Proceeds from sale of fixed assets               |   |               | 49     |   |   |   | - |   |
| Other, net                                       |   |               | (293   | ) |   |   | (293 | ) |
|                                             |   |               |   |   |   |   |   |   |
| Net cash used by investing activities            |   |               | (1,491 | ) |   |   | (1,324 | ) |
|                                             |   |               |   |   |   |   |   |   |
| Cash flows from financing activities:            |   |               |   |   |   |   |   |   |
| Proceeds from notes payable                      |   |               | 18     |   |   |   | - |   |
| Payments of notes payable                        |   |               | (42    | ) |   |   | (874 | ) |
| Proceeds from (payments of) long-term debt       |   |               | 1,695  |   |   |   | (1,394 | ) |
| Proceeds from exercise of stock options          |   |               | 71     |   |   |   | 80 |   |
| Dividends paid to shareholders                   |   |               | (792   | ) |   |   | (784 | ) |
| Dividends paid to noncontrolling interest        |   |               | (138   | ) |   |   | - |   |
| Other                                            |   |               | 132    |   |   |   | (500 | ) |
|                                             |   |               |   |   |   |   |   |   |
| Net cash provided (used) by financing activities |   |               | 944    |   |   |   | (3,472 | ) |
|                                             |   |               |   |   |   |   |   |   |
| Effect of exchange rate changes on cash          |   |               | 558    |   |   |   | 128 |   |
|                                             |   |               |   |   |   |   |   |   |
| Net change in cash                               |   |               | 4,092  |   |   |   | 3,875 |   |
|                                             |   |               |   |   |   |   |   |   |
| Cash:                                            |   |               |   |   |   |   |   |   |
| Beginning of period                              |   |               | 19,022 |   |   |   | 13,266 |   |
|                                             |   |               |   |   |   |   |   |   |
| End of period                                    |   | $                  | 23,114 |   |   | $ | 17,141 |   |

----

| A. | Basis of Presentation |
|----|-----------------------|

| B. | Inventory |
|----|-----------|

|            | September 24, | June 30, |
|-----------------|---------------|----------|
|            | 2010          | 2010     |
| Inventories:    |          |     |
| Finished parts  | $48,241       | $47,051  |
| Work in process | 10,146        | 8,998    |
| Raw materials   | 19,071        | 16,750   |
|            |          |     |
|            | $77,458       | $72,799  |

| C. | Warranty |
|----|----------|

|                                 |   | Three Months Ended |   |
|--------------------------------------|--------|--------------------|--------|
|                                 |   | September 24,      |   |   | September 25, |   |
|                                 |   | 2010               |   |   | 2009 |   |
|                                 |   |               |   |   |   |   |
| Reserve balance, beginning of period |   | $                  | 6,061  |   |   | $ | 8,028 |   |
| Current period expense               |   |               | 1,707  |   |   |   | 1,197 |   |
| Payments or credits to customers     |   |               | (1,474 | ) |   |   | (1,686 | ) |
| Translation                          |   |               | 488    |   |   |   | 128 |   |
|                                 |   |               |   |   |   |   |   |   |
| Reserve balance, end of period       |   | $                  | 6,782  |   |   | $ | 7,667 |   |

| D. | Contingencies |
|----|---------------|

| E. | Business Segments |
|----|-------------------|

|                                            |   | Three Months Ended |    |
|-------------------------------------------------|--------|--------------------|---------|
|                                            |   | September 24,      |    |   | September 25, |   |
|                                            |   | 2010               |    |   | 2009 |   |
| Manufacturing segment sales                     |   | $                  | 50,802  |   |   | $ | 32,738 |   |
| Distribution segment sales                      |   |               | 28,544  |   |   |   | 27,952 |   |
| Inter/Intra segment elimination - manufacturing |   |               | (14,468 | ) |   |   | (6,407 | ) |
| Inter/Intra segment elimination - distribution  |   |               | (3,483  | ) |   |   | (7,226 | ) |
|                                            |   |               |    |   |   |   |   |   |
| Net sales                                       |   | $                  | 61,395  |   |   | $ | 47,057 |   |
|                                            |   |               |    |   |   |   |   |   |
| Manufacturing segment earnings (loss)           |   | $                  | 6,453   |   |   | $ | (4,174 | ) |
| Distribution segment earnings                   |   |               | 2,033   |   |   |   | 2,267 |   |
| Corporate and eliminations                      |   |               | (4,233  | ) |   |   | (1,803 | ) |
|                                            |   |               |    |   |   |   |   |   |
| Earnings (loss) before income taxes             |   |               |    |   |   |   |   |   |
| and noncontrolling interest                     |   | $                  | 4,253   |   |   | $ | (3,710 | ) |
|                                            |   |               |    |   |   |   |   |   |
|                                            |   |               |    |   |   |   |   |   |
|                                            |   | September 24,      |    |   | June 30, |   |
| Assets                                          |   |               | 2010    |   |   |   | 2010 |   |
|                                            |   |               |    |   |   |   |   |   |
| Manufacturing segment assets                    |   | $                  | 235,819 |   |   | $ | 217,656 |   |
| Distribution segment assets                     |   |               | 54,987  |   |   |   | 53,514 |   |
| Corporate assets and elimination                |   |               |    |   |   |   |   |   |
| of inter-company assets                         |   |               | (17,638 | ) |   |   | (12,114 | ) |
|                                            |   |               |    |   |   |   |   |   |
|                                            |   | $                  | 273,168 |   |   | $ | 259,056 |   |

| F. | Stock-Based Compensation |
|----|--------------------------|

| G. | Pension and Other Postretirement Benefit Plans |
|----|------------------------------------------------|

|                                  |   | Three Months Ended |   |
|---------------------------------------|--------|--------------------|--------|
|                                  |   | September 24,      |   |   | September 25, |   |
|                                  |   | 2010               |   |   | 2009 |   |
|                                  |   |               |   |   |   |   |
| Pension Benefits:                     |   |               |   |   |   |   |
| Service cost                          |   | $                  | 38     |   |   | $ | 62 |   |
| Interest cost                         |   |               | 1,556  |   |   |   | 1,815 |   |
| Expected return on plan assets        |   |               | (1,513 | ) |   |   | (1,507 | ) |
| Amortization of prior service cost    |   |               | -      |   |   |   | 2 |   |
| Amortization of transition obligation |   |               | -      |   |   |   | 13 |   |
| Amortization of net loss              |   |               | 784    |   |   |   | 656 |   |
| Net periodic benefit cost             |   | $                  | 865    |   |   | $ | 1,041 |   |
|                                  |   |               |   |   |   |   |   |   |
|                                  |   |               |   |   |   |   |   |   |
| Postretirement Benefits:              |   |               |   |   |   |   |   |   |
| Service cost                          |   | $                  | 8      |   |   | $ | 7 |   |
| Interest cost                         |   |               | 274    |   |   |   | 337 |   |
| Amortization of net actuarial loss    |   |               | 111    |   |   |   | 45 |   |
| Net periodic benefit cost             |   | $                  | 393    |   |   | $ | 389 |   |

| H. | Income Taxes |
|----|--------------|

| I. | Goodwill and Other Intangibles |
|----|--------------------------------|

| Balance at June 30, 2010      | $16,440 |
|-------------------------------|---------|
| Translation adjustment        | 373     |
|                          |    |
| Balance at September 24, 2010 | $16,813 |

|                                 |   | September 24, |   |   | June 30, |   |
|--------------------------------------|--------|---------------|--------|--------|----------|--------|
|                                 |   | 2010          |   |   | 2010     |   |
| Intangible assets with finite lives: |   |          |   |   |     |   |
| Licensing agreements                 |   | $             | 3,015  |   |     | $      | 3,015 |   |
| Non-compete agreements               |   |          | 2,050  |   |     |   | 2,050 |   |
| Other                                |   |          | 5,991  |   |     |   | 5,991 |   |
|                                 |   |          |   |   |     |   |   |   |
|                                 |   |          | 11,056 |   |     |   | 11,056 |   |
| Accumulated amortization             |   |          | (7,179 | )      |     |   | (6,980 | ) |
| Translation adjustment               |   |          | 394    |   |     |   | 211 |   |
|                                 |   |          |   |   |     |   |   |   |
| Total                                |   | $             | 4,271  |   |     | $      | 4,287 |   |

| Fiscal Year |   |
|-------------|--------|
| 2011        | $561   |
| 2012        | 748    |
| 2013        | 700    |
| 2014        | 700    |
| 2015        | 413    |
| 2016        | 276    |

| J.   | Long-term Debt |
|----------------|----------------|

|                                               |   | September 24, |   |   | June 30, |   |
|----------------------------------------------------|--------|---------------|--------|--------|----------|--------|
|                                               |   | 2010          |   |   | 2010     |   |
|                                               |   |          |   |   |     |   |
| Revolving loan                                     |   | $             | 10,700 |   |     | $      | 9,000 |   |
| 10-year unsecured senior notes                     |   |          | 21,429 |   |     |   | 21,429 |   |
| Other                                              |   |          | 710    |   |     |   | 702 |   |
| Subtotal                                           |   |          | 32,839 |   |     |   | 31,131 |   |
| Less: current maturities and short-term borrowings |   |          | (3,987 | )      |     |   | (3,920 | ) |
| Total long-term debt                               |   | $             | 28,852 |   |     | $      | 27,211 |   |

| K.   | Shareholders’ Equity |
|----------------|----------------------------|

| The following is a reconciliation of the Company’s equity balances for the first fiscal three months of 2010 and 2011 (in thousands): |
|---------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                        | Twin Disc, Inc. Shareholders’ Equity |   |   |
|                                                                                                                                        |   |   | Accumulated |   |   |   |
|                                                                                                                                        |   |   | Other |   | Non- |   |
|                                                                                                                                        | Common | Retained | Comprehensive | Treasury | Controlling | Total |
|                                                                                                                                        | Stock | Earnings | Income (Loss) | Stock | Interest | Equity |
| Balance –June 30, 2009                                                                                                                | $13,205 | $149,974 | ($25,935) | ($30,256) | $837 | $107,825 |
| Net (loss) income                                                                                                                           |   | (2,404) |   |   | 92 | (2,312) |
| Translation adjustments                                                                                                                     |   |   | 2,913 |   | 15 | 2,928 |
| Benefit plan adjustments, net of tax                                                                                                        |   |   | 447 |   |   | 447 |
| Cash dividends                                                                                                                              |   | (784) |   |   |   | (784) |
| Compensation expense and                                                                                                                    |   |   |   |   |   |   |
| windfall tax benefits                                                                                                                       | (90) |   |   |   |   | (90) |
| Shares (acquired) issued, net                                                                                                               | (2,699) |   |   | 2,462 |   | (237) |
| Balance-September 25, 2009                                                                                                                  | $10,416 | $146,786 | ($22,575) | ($27,794) | $944 | $107,777 |
|                                                                                                                                        |   |   |   |   |   |   |
|                                                                                                                                        | Twin Disc, Inc. Shareholders’ Equity |   |   |
|                                                                                                                                        |   |   | Accumulated |   |   |   |
|                                                                                                                                        |   |   | Other |   | Non- |   |
|                                                                                                                                        | Common | Retained | Comprehensive | Treasury | Controlling | Total |
|                                                                                                                                        | Stock | Earnings | Income (Loss) | Stock | Interest | Equity |
| Balance-June 30, 2010                                                                                                                       | $10,667 | $147,438 | ($42,048) | ($27,597) | $859 | $89,319 |
| Net income                                                                                                                                  |   | 2,656 |   |   | 41 | 2,697 |
| Translation adjustments                                                                                                                     |   |   | 7,355 |   | 40 | 7,395 |
| Benefit plan adjustments, net of tax                                                                                                        |   |   | 553 |   |   | 553 |
| Cash dividends                                                                                                                              |   | (792) |   |   | (138) | (930) |
| Compensation expense and                                                                                                                    |   |   |   |   |   |   |
| windfall tax benefits                                                                                                                       | 590 |   |   |   |   | 590 |
| Shares (acquired) issued, net                                                                                                               | (1,593) |   |   | 1,664 |   | 71 |
| Balance-September 24, 2010                                                                                                                  | $9,664 | $149,302 | ($34,140) | ($25,933) | $802 | $99,695 |

| Item 2. | Management Discussion and Analysis |
|---------|------------------------------------|

| (In thousands)                  |   |               |   |
|---------------------------------|--------|--------------------|--------|
|                            |   | Three Months Ended |   |
|                            |   | September 24,      |   |   | September 25, |   |
|                            |   | 2010               |   | % |   |   | 2009 |   | % |   |
| Net sales                       |   | $                  | 61,395 |   |   |   |   | $ | 47,057 |   |   |   |
| Cost of goods sold              |   |               | 41,372 |   |   |   |   |   | 37,310 |   |   |   |
|                            |   |               |   |   |   |   |   |   |   |   |   |   |
| Gross profit                    |   |               | 20,023 |   | 32.6 | % |   |   | 9,747 |   | 20.7 | % |
|                            |   |               |   |   |   |   |   |   |   |   |   |   |
| Marketing, engineering and      |   |               |   |   |   |   |   |   |   |   |   |   |
| administrative expenses         |   |               | 14,777 |   | 24.1 | % |   |   | 12,778 |   | 27.2 | % |
|                            |   |               |   |   |   |   |   |   |   |   |   |   |
| Earnings (loss) from operations |   | $                  | 5,246  |   | 8.5 | % |   | $ | (3,031 | ) | (6.4 | )% |

|                                 | Three Months Ended                                                                                  | Increase/                                                                                                     |
|--------------------------------------|-----------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------|
| $ thousands – (Income)/Expense | Sept. 24, 2010                                                                                      | Sept. 25, 2009                                                                                                | (Decrease) |
| Stock-Based Compensation             |        $       919            |      $         94                       |        $        825 |
| Incentive/Bonus Expense              |                 936 |                   0 |                  936 |
|                                 |                                                                                                |                                                                                                          |               1,761 |
|                                 | Foreign Currency Translation                                                                        |                (229)               |
|                                 |                                                                                                |               1,532                     |
|                                 | All Other, Net                                                                                      |                  467     |
|                                 |                                                                                                |                                                                                                          |        $     1,999 |

| ·   | “Four quarter EBITDA” is defined as “the sum of (i) Net Income plus, to the extent deducted in the calculation of Net Income, (ii) interest expense, (iii) depreciation and amortization expense, and (iv) income tax expense;” and |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | “Total funded debt” is defined as “(i) all Indebtedness for borrowed money (including without limitation, Indebtedness evidenced by promissory notes, bonds, debentures and similar interest-bearing instruments), plus (ii) all purchase money Indebtedness, plus (iii) the principal portion of capital lease obligations, plus (iv) the maximum amount which is available to be drawn under letters of credit then outstanding, all as determined for the Company and its consolidated Subsidiaries as of the date of determination, without duplication, and in accordance with generally accepted accounting principles applied on a consistent basis.” |
|--------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| ·   | “Total funded debt to four quarter EBITDA” is defined as the ratio of total funded debt to four quarter EBITDA calculated in accordance with the above definitions. |
|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Four Quarter EBITDA Reconciliation                   |                                                                               |
|------------------------------------------------------|------------------------------------------------------------------------------------|
| Net Earnings                                         | $  5,657,000                                                             |
| Depreciation & Amortization                      |     9,714,000                                                  |
| Interest Expense                                     |     2,102,000                                                  |
| Income Taxes                                         |     3,946,000                                                  |
| Four Quarter EBITDA                                  | $21,419,000                                                                        |
|                                                 |                                                                               |
| Total Funded Debt to Four Quarter EBITDA             |                                                                               |
| Total Debt                                           | $32,839,000                                                                        |
| Divided by: Four Quarter EBITDA                      |   21,419,000                                                             |
|   Total Funded Debt to Four Quarter EBITDA |              1.53 |

|   Contractual Obligations |   Total |  Less than1 year |  1-3Years |  3-5Years |  After 5Years |
|-------------------------------------|-------------------|-----------------------|----------------|----------------|--------------------|
| Revolver borrowing                  | $10,700           |                  | $10,700        |           |               |
| Long-term debt                      | $22,139           | $3,987                | $7,408         | $7,142         | $3,602             |
| Operating leases                    | $5,573            | $2,694                | $2,549         | $154           | $176               |
| Total obligations                   | $38,412           | $6,681                | $20,657        | $7,296         | $3,778             |

| Item 3. | Quantitative and Qualitative Disclosure About Market Risk |
|---------|-----------------------------------------------------------|

| Item 4. | Controls and Procedures |
|---------|-------------------------|

| Part II. | OTHER INFORMATION |
|----------|-------------------|

| Item 1. | Legal Proceedings |
|---------|-------------------|

| Item 1A. | Risk Factors |
|----------|--------------|

| Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds |
|---------|-------------------------------------------------------------|

| Period                              | (a) Total Number of Shares Purchased | (b) Average Price Paid per Share | (c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs | (d) Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs |
|-------------------------------------|--------------------------------------|----------------------------------|--------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|
|                                |                                 |                             |                                                                                 |                                                                               |
| July 1, 2009 – July 30, 2010  | 0                                    | NA                               | 0                                                                                    | 250,000                                                                            |
|                                |                                 |                             |                                                                                 |                                                                               |
| July 31, 2010 – Aug. 27, 2010 | 0                                    | NA                               | 0                                                                                    | 250,000                                                                            |
|                                |                                 |                             |                                                                                 |                                                                               |
| Aug. 28, 2010 – Sep. 24, 2010 | 0                                    | NA                               | 0                                                                                    | 250,000                                                                            |
|                                |                                 |                             |                                                                                 |                                                                               |
| Total                               | 0                                    |                             | 0                                                                                    |                                                                               |

| Item 3. | Defaults Upon Senior Securities |
|---------|---------------------------------|

| Item 5. | Other Information |
|---------|-------------------|

| Item 6. | Exhibits |
|---------|----------|

| 31a | Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |
|-----|-----------------------------------------------------------------------------------------------------|

| 31b | Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. |
|-----|-----------------------------------------------------------------------------------------------------|

| 32a | Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
|-----|-----------------------------------------------------------------------------------------------------|

| 32b | Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
|-----|-----------------------------------------------------------------------------------------------------|

----

|                              | TWIN DISC, INCORPORATED  |
|-----------------------------------|--------------------------|
|                              | (Registrant)             |
|                              |                     |
|                              |                     |
| Date:  November 3, 2010 | /s/ JEFFREY S. KNUTSON   |
|                              | Jeffrey S. Knutson       |
|                              | Corporate Controller     |
|                              | Chief Accounting Officer |

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