Document:

<PAGE>

                                   EXHIBIT 4.1

                    AMENDMENT TO THE BY-LAWS OF HARDINGE INC.

                             DATED FEBRUARY 20, 2001

      Effective February 20, 2001, the first sentence of Article III, Section 3.
of the By-Laws of Hardinge Inc. was amended to read:

   "THE NUMBER OF DIRECTORS CONSTITUTING THE ENTIRE BOARD SHALL BE TEN (10)."<PAGE>

                                  EXHIBIT 10.1

                              AMENDMENT NUMBER TWO

This Amendment Number Two is dated as of February 5, 2001 and is to the Credit
Agreement among the Hardinge Inc., the Bank's signatory thereto and The Chase
Manhattan Bank as Agent, dated August 1, 1997 (the Agreement). Terms used but
not otherwise defined herein shall have the meanings ascribed thereto in the
Agreement.

      In order the amend the Agreement, the parties agree as follows:

      1.    Section 1.01 of the Agreement shall be amended as by replacing the
            definition of Earnings Before Interest, Taxes, Depreciation and
            Amortization as follows:

            "Earnings Before Interest, Taxes, Depreciation and Amortization"
            means Consolidated Net Income prior to the deduction of interest
            expense, prior to the deduction of for federal or foreign corporate
            income and corporate franchise taxes and prior to the deduction of
            for depreciation and amortization. Notwithstanding anything to the
            contrary set forth herein, for the twelve months following the
            Acquisition Date, Earnings Before Interest, Taxes, Depreciation and
            Amortization shall be calculated as if the Acquisition had taken
            place on January 1, 2000.

      2.    This Amendment Number Two may be executed in any number of
            counterparts, all of which taken together shall constitute one and
            the same instrument, and any parties hereto may execute this
            Amendment Number Two by signing such counterpart.

      3.    Other than as set forth in this Amendment Number Two, the terms and
            conditions of the Agreement shall remain in full force and effect.

            IN WITNESS WHEREOF, the parties hereto have caused this Amendment
Number Two to be executed by their duly authorized officers as of the day and
year first above written.

                                     HARDINGE INC.

                                     By: /s/ Robert E. Agan
                                         --------------------------------------
                                         Robert E. Agan, Chairman of the Board
                                         and Chief Executive Officer

                                      -1-

<PAGE>

                                        AGENT:

                                        THE CHASE MANHATTAN BANK,

                                        By: /s/ Christine M. McLeod
                                            -----------------------------------
                                            Christine M. McLeod, Vice President

                                      -2-

<PAGE>

                                        BANKS:

                                        THE CHASE MANHATTAN BANK,

                                        By: /s/ Christine M. McLeod
                                            -----------------------------------
                                            Christine M. McLeod, Vice President

                                        FLEET NATIONAL BANK
                                        Successor to Fleet Bank

                                        By:
                                           ------------------------------------
                                           John M. Pitton, Senior Vice President

                                        MANUFACTURERS & TRADERS
                                        TRUST COMPANY

                                        By: /s/ Peter Newman
                                            -----------------------------------
                                            Peter Newman, Vice President

                                       -3-<PAGE>

                                  EXHIBIT 10.2

                             AMENDMENT NUMBER THREE

      This Amendment Number Three is dated as of February 5, 2001 and is to the
Credit Agreement among Hardinge Inc., the Bank's signatory thereto and The Chase
Manhattan Bank (National Association) (now The Chase Manhattan Bank) as Agent,
dated as of February 28, 1996 and amended by Amendment Number One as of August
1, 1997 and Amendment Number Two dated as of December 11, 2000 (as amended the
"Agreement"). Terms used but not otherwise defined herein shall have the
meanings ascribed thereto in the Agreement.

      In order to further amend the Agreement, the parties agree as follows:

      1.    Section 1.01 of the Agreement shall be amended as by replacing the
            definition of Earnings Before Interest, Taxes, Depreciation and
            Amortization as follows:

            "Earnings Before Interest, Taxes, Depreciation and Amortization"
            means Consolidated Net Income prior to the deduction of interest
            expense, prior to the deduction of for federal or foreign corporate
            income and corporate franchise taxes and prior to the deduction of
            for depreciation and amortization. Notwithstanding anything to the
            contrary set forth herein, for the twelve months following the
            Acquisition Date, Earnings Before Interest, Taxes, Depreciation and
            Amortization shall be calculated as if the Acquisition Date was
            January 1, 2000.

      2.    This Amendment Number Three may be executed in any number of
counterparts, all of which taken together shall constitute one and the same
instrument, and any parties hereto may execute this Amendment Number Three by
signing any such counterpart.

      9.    Other than as set forth in this Amendment Number Three, the terms
and conditions of the Agreement shall remain in full force and effect.

            IN WITNESS WHEREOF, the parties have caused this Amendment Number
Three to be executed by their duly authorized officers as of the day and year
first above written.

                                  HARDINGE INC.

                                  By: /s/ Robert E. Agan
                                      -------------------------------------
                                      Robert E. Agan, Chairman of the Board
                                      and Chief Executive Officer

<PAGE>

                                 AGENT:

                                 THE CHASE MANHATTAN BANK
                                 Successor to The Chase Manhattan Bank
                                 (National Association)

                                 By: /s/ Christine M. McLeod
                                     -------------------------------------
                                     Christine M. McLeod, Vice President

                                       2

<PAGE>

                                   BANKS:

                                   THE CHASE MANHATTAN BANK,
                                   Successor to The Chase Manhattan Bank
                                   (National Association)

                                   By:  /s/ Christine M. McLeod
                                        -------------------------------------
                                        Christine M. McLeod, Vice President

                                   THE CHASE MANHATTAN BANK
                                   f/k/a Chemical Bank

                                   By:  /s/ Christine M. McLeod
                                        -------------------------------------
                                        Christine M. McLeod, Vice President

                                   HSBC BANK USA
                                   f/k/a/ Marine Midland Bank

                                   By:  /s/ Ronald W. Lesch
                                        -------------------------------------
                                        Ronald W. Lesch, Vice President

                                       3<PAGE>

                                  EXHIBIT 10.3

                           CHEMUNG CANAL TRUST COMPANY

                                   MASTER NOTE

$8,000,000.00                                                  ELMIRA, NEW YORK
                                                               FEBRUARY 8, 2001

For value received, the undersigned, HARDINGE, INC. ("Borrower promises to pay
to the order of CHEMUNG CANAL TRUST COMPANY ("Lender"), on demand or when due
as provided herein, at its office at One Chemung Canal Plaza, Elmira, New
York, or at any other office designated by Lender, the principal sum of EIGHT
MILLION and NO/100 ($8,000,000.00) Dollars, or so much thereof as shall equal
the unpaid principal amount of all advances made by Lender to Borrower, plus
interest on the principal amount outstanding from time to time.

This Note shall be evidence of indebtedness and shall constitute the terms of
payment by the Borrower to the Lender of principal which may be borrowed, repaid
and reborrowed from time to time, it being understood that the Lender may, in
its sole discretion, decline in whole or in part to make any advance requested
by Borrower. The excess of borrowing over repayments shall be the principal
balance due hereunder from time to time and at any time.

The Lender may, in its sole discretion, make an advance to the Borrower upon
oral request. Each oral request shall be conclusively presumed to have been
made by a person authorized by Borrower to do so, and any credit by the Lender
of any advance to or for the account of the Borrower shall establish the
Borrower's obligation to repay the same in accordance with the terms of this
Note. The Lender shall incur no liability to any party by reason of making an
advance upon an oral request. The Lender will endeavor (but shall be under no
obligation) to send to the Borrower written confirmation of the date and amount
of such advance, but its failure to do so will not relieve the Borrower of its
obligations hereunder, including its obligation to repay the advance when due.

Each advance made to Borrower shall be deposited in Borrower's account at
Chemung Canal Trust Company, identified below. Any advance made hereunder shall
be in an amount of not less than $2,500.00.

Interest shall accrue at a rate equal to the Prime Rate in effect from time to
time. Prime Rate, as used herein, shall mean the annual rate of interest
announced by THE WALL STREET JOURNAL, as THE WALL STREET JOURNAL Prime Rate. The
rate of interest payable hereunder shall change on each date on which a change
in the Prime Rate becomes effective. Interest will be calculated for the actual
number of days on a 360-day basis.

Advances in excess of $500,000.00 designated for duration of one month or longer
shall accrue interest at a rate equal to the sum of the one-month London
Interbank Offered rate (LIBOR) in effect from time to time plus .50% per annum.
The LIBOR rate as used herein shall mean the annual rate of interest announced
in the Wall Street Journal. All advances will carry the LIBOR rate fixed for one
month. All advances under $500,000.00 and any advance paid prior to the
one-month maturity will have its interest rate revert to the Wall Street Journal
Prime Rate. All interest will be calculated for the actual number of days on a
360-day basis.

Lender may, at its sole option, declare the entire balance of principal and
accrued interest due and payable at any time, and in that event, the Borrower
will immediately pay the entire balance in full.

All or any part of the indebtedness evidenced by this Note may be paid without
penalty at any time.

All payments shall be in lawful money of the United States in immediately
available funds.

If the Lender demands and accepts partial payments, such demand or acceptance
shall not be construed as a waiver of the right to demand the entire unpaid
balance due hereunder at any time in accordance with the terms hereof. Any
delay by the Lender in exercising any rights hereunder shall not operate as a
waiver of such rights.

The provisions of any separate Security Agreement or mortgage executed by the
Borrower shall become a part of the terms of this Master Note.

<PAGE>

If this item is checked, ______, notwithstanding any other provision of this
Note, the Borrower agrees that for a period of ____ consecutive days during
each of Borrower's fiscal years, there shall be no principal balance and
accrued interest outstanding under this Master Note.

Borrower, and endorsers and guarantors hereof, waive any demand, presentment for
payment, protest and notice of protest for non-payment of this Note. This Note
shall be governed by the laws of the State of New York.

Borrower agrees to pay all reasonable costs and expenses, including attorneys'
fees and disbursements incurred by Lender in enforcing this Note.

                                  HARDINGE INC.
                               ONE HARDINGE DRIVE
                           ELMIRA, NEW YORK 14902-1507

                BY:        /s/  RICHARD L. SIMONS
                    ------------------------------------------
                                RICHARD L. SIMONS
                EXECUTIVE VICE PRESIDENT/CHIEF FINANCIAL OFFICER

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