| Period                                                          | Reducing      Revolving Credit Commitment |
|-----------------------------------------------------------------|-------------------------------------------|
| Closing      Date – 4/27/07                               | $12,000,000                               |
| 4/28/07      – 4/27/08                                    | $9,600,000                                |
| 4/28/08      – 6/14/09                                    | $7,200,000                                |
| 6/15/09      – 4/27/10                                    | $4,800,000                                |
| 4/28/10      – Reducing Revolving Credit Termination Date | $2,400,000                                |

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| (i)   | this      Amendment duly executed by the Borrower, the Agent and B of    A; |
|-----------------|-----------------------------------------------------------------------------|

| (ii)   | a      Bringdown Certificate executed by the Secretary or Assistant Secretary of      the Borrower with regard to resolutions, organizational matters and      officer incumbencies; |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| (iii)   | Good      Standing Certificate certified by the Secretary of the Commonwealth of      Massachusetts; and |
|-------------------|----------------------------------------------------------------------------------------------------------|

| (iv)   | payment      of all reasonable costs and expenses (including, without limitation, the      reasonable costs and expenses of the Agent’s counsel) incurred by the      Agent in connection with thisAmendment. |
|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|                                                | BORROWER:                                                                                                          |
|-----------------------------------------------------|--------------------------------------------------------------------------------------------------------------------|
|                                                |                                                                                                               |
| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | THE      L.S. STARRETT COMPANYBy:/s/ Randall HylekRandall      HylekChief      Financial Officer and VicePresident |

|   | AGENT:                                                                                                             |
|--------|--------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                               |
|   | BANK      OF AMERICA, N.A., as AgentBy:/s/ Richard MacDonaldName:      Richard MacDonaldTitle:      Vice President |
|   |                                                                                                               |
|   | LENDER:                                                                                                            |
|   |                                                                                                               |
|   | BANK      OF AMERICA, N.ABy:/s/ Richard MacDonaldRichard      J. MacDonaldVice      President                      |

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| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | LEVEL      INDUSTRIES, INC.  By:/s/ Randall HylekRandall      Hylek,Chief      Financial Officer and Vice President   |
|-----------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|

| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | EVANS      RULE COMPANY, INC.  By:/s/ Randall HylekRandall      Hylek,Chief      Financial Officer and Vice President   |
|-----------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|

| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | STARRETT      SECURITIES CORPORATION  By:/s/ Randall HylekRandall      Hylek,Chief      Financial Officer and Vice President   |
|-----------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------|

| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | STARRETT      METROLOGY SERVICES, INC.  By:/s/ Randall HylekRandall      Hylek,Chief      Financial Officer and Vice President   |
|-----------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------|

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| WITNESSED:/s/ Roy V. LakeRoy V. LakePrint      Name | TRU-STONE      TECHNOLOGIES, INC.(f/k/a      Starrett Acquisition Corporation) By:/s/ Randall HylekRandall      Hylek,Chief      Financial Officer and Vice President   |
|-----------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| 1.   | The      execution, delivery and performance of the Second Amendment dated as of      the date hereof to the Credit Agreement are within the authority granted      by the resolutions adopted by the Board of Directors of the Company      previously certified to the Agent by the Secretary of the Company on      April 28, 2006, such resolutions have not been revoked,      annulled, rescinded, revised or amended (nor is any action pending or      contemplated for their revocation, revision or amendment) and are in full      force and effect as of the date of this  Certificate. |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 2.   | No      proceeding or other undertaking for the amendment of the Company’s      Restated Articles of Organization or bylaws, copies of which were attached      to the Secretary’s Certificate previously delivered to the Agent on      April 28, 2006, to effect any name change of the Company from      that shown above, or for the merger, consolidation, sale of assets and      business, liquidation or dissolution of the Company, has been taken, and      no such proceeding or undertaking ispending |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | The      persons whose names appear below are the duly appointed, qualified and      acting officers of the Company occupying the offices set opposite their      respective names. |
|----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Name                     | Title     |
|--------------------------|-----------|
| Douglas      A. Starrett | President |
| Randall      J. Hylek    | Secretary |

|   |   /s/ Randall HylekRandall      J. HylekSecretary |
|--------|-------------------------------------------------------------|

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