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                                                                   Exhibit 10.21

                                THOMAS K. O'MARA

                                 FIRST AMENDMENT

                                       TO

                              EMPLOYMENT AGREEMENT

      This First Amendment to Employment Agreement is entered into on September
17, 2004 by and between Thomas K. O'Mara, an individual ("Executive"),and
Autocam Corporation (the "Company").

      Whereas the Company and Executive have entered into that certain
Employment Agreement dated February ,2002 (The "Employment Agreement"); and

      Whereas Section 2(d) of the Employment Agreement provides for a benefit to
Executive in the form of collateral assignment split-dollar life insurance plans
(the "Plans"); and

      Whereas the Company will be filing a registration statement with the
Securities and Exchange Commission with respect to long term notes it has
issued, and

      Whereas upon the filing of such registration statement, the loans that are
deemed to be outstanding by Company to Executive pursuant to the Plans may be
illegal; and

      Whereas the Company and Executive wish to amend the Employment Agreement
to terminate each of the Plans and to substitute a benefit to Executive that
will be the approximate equivalent.

      NOW THEREFORE, Executive and Company agree that Section 2(d) of the
Employment Agreement is hereby amended and restated to read in its entirety as
follows:

            (d) Life Insurance. The Company agrees that with respect to each of
Northwestern Life Insurance Company Policies of life insurance Nos. 11593263,
12454617, 13275638, 13755489, 14488589 and 15993751, (i) all amounts due from
the Executive in respect of premiums paid prior to the date hereof pursuant to
the Plans are hereby forgiven and become a bonus to the Executive on the date
hereof, (ii) Company will continue to pay the premiums due on each of the
Policies as they become due until the termination of this Agreement and (iii)
the Company will pay to Executive a cash bonus in calendar 2004 and each
calendar year thereafter in an amount intended to compensate Executive for the
tax consequences of the forgiveness of debt under (i) above and the payment of
premiums under (ii) above at times and in amounts as has been agreed upon by
Company and Executive and as calculated by the Chief Executive Officer of the
Company and approved by Company's management. All such payments shall be treated
as compensation to the Executive in the year paid and are not subject to any
reimbursement to Company by the Executive at any time.
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IN WITNESS WHEREOF, the parties have executed this First Amendment to Employment
Agreement effective as of the date first above written.

                                        /s/ Thomas K. O'Mara
                                        --------------------------------
                                        Thomas K. O'Mara

                                        Autocam Corporation

                                        By: /s/ John C. Kennedy
                                           -----------------------------
                                             John C. Kennedy, President<PAGE>
                                                                   Exhibit 10.22

                              MICRON HOLDINGS, INC.

                             2004 STOCK OPTION PLAN

1.    PURPOSE OF THE PLAN

            The purpose of the Plan is to aid the Company and its Affiliates in
recruiting and retaining key employees, directors and consultants of outstanding
ability and to motivate such employees, directors and consultants to exert their
best efforts on behalf of the Company and its Affiliates by providing incentives
through the granting of Options. The Company expects that it will benefit from
the added interest which such key employees, directors or consultants will have
in the welfare of the Company as a result of their proprietary interest in the
Company's success.

2.    DEFINITIONS

            The following capitalized terms used in the Plan have the respective
meanings set forth in this Section:

            (a)   Act: The Securities Exchange Act of 1934, as amended, or any
                  successor thereto.

            (b)   Affiliate: (i) With respect to the Company, any Person
                  directly or indirectly controlling, controlled by or under
                  common control with the Company or any other Person designated
                  by the Board in which the Company or its Affiliate has an
                  interest, (ii) with respect to any Person other than the
                  Company, any other Person directly or indirectly controlling,
                  controlled by or under common control with such Person.

            (c)   Beneficial Owner: A "beneficial owner," as such term is
                  defined in Rule 13d-3 under the Act (or any successor rule
                  thereto).

            (d)   Board: The Board of Directors of the Company.

            (e)   Code: The Internal Revenue Code of 1986, as amended, or any
                  successor thereto.

            (f)   Committee: The Board or such committee of the Board as may be
                  designated from time to time to administer the Plan.

            (g)   Company: Micron Holdings, Inc., a Delaware corporation, and
                  any successor thereto by merger, consolidation or otherwise.

            (h)   Effective Date: The date on which the "Effective Time" (as
                  defined in the Merger Agreement) occurs.

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            (i)   Employment: The term "Employment" as used herein shall be
                  deemed to refer to (i) a Participant's employment if the
                  Participant is an employee of the Company or any of its
                  Affiliates, (ii) a Participant's services as a consultant, if
                  the Participant is a consultant to the Company or its
                  Affiliates and (iii) a Participant's services as an
                  non-employee director, if the Participant is a non-employee
                  member of the Board.

            (j)   Fair Market Value: On a given date, (i) if there should be a
                  public market for the Shares on such date, the arithmetic mean
                  of the high and low prices of the Shares as reported on such
                  date on the composite tape of the principal national
                  securities exchange on which such Shares are listed or
                  admitted to trading, or, if the Shares are not listed or
                  admitted on any national securities exchange, the arithmetic
                  mean of the per-Share closing bid price and per-Share closing
                  asked price on such date as quoted on the National Association
                  of Securities Dealers Automated Quotation System (or such
                  market in which such prices are regularly quoted) (the
                  "Nasdaq"), or, if no sale of Shares shall have been reported
                  on the composite tape of any national securities exchange or
                  quoted on the Nasdaq on such date, the arithmetic mean of the
                  per-Share closing bid price and per-Share closing asked price
                  on the immediately preceding date on which sales of the Shares
                  have been so reported or quoted, and (ii) if there is not a
                  public market for the Shares on such date, the value
                  established by the Committee in good faith.

            (k)   Initial Investors: The initial parties to the Stockholders'
                  Agreement.

            (l)   Merger Agreement: The Agreement and Plan of Merger, dated as
                  of May 1, 2004, to which Titan Holdings, Inc., a Delaware
                  corporation, the Company and Micron Merger Corporation, a
                  Delaware corporation, are parties.

            (m)   Option: A stock option granted pursuant to Section 6 of the
                  Plan.

            (n)   Option Price: The purchase price per Share of an Option, as
                  determined pursuant to Section 6(a) of the Plan.

            (o)   Participant: An employee, director or consultant who is
                  selected by the Committee to participate in the Plan.

            (p)   Person: A "person," as such term is used for purposes of
                  Section 13(d) or 14(d) of the Act (or any successor section
                  thereto).

            (q)   Plan: The Micron Holdings, Inc. 2004 Stock Option Plan.

            (r)   Shares: Shares of common stock, par value $.01 per share, of
                  the Company and any other securities into which such shares of
                  common stock are changed or for which such shares of common
                  stock are exchanged.

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            (s)   Stockholders' Agreement: The Stockholders Agreement dated as
                  of June 21, 2004 (as amended and restated from time to time)
                  by and among the Company, the Initial Investors and such other
                  Persons who become parties thereto.

            (t)   Transaction: The occurrence of any of the following events
                  after the Effective Date: (i) the sale or disposition, in one
                  or a series of related transactions, of all or substantially
                  all of the assets of the Company to any Person, other than any
                  of the Initial Investors or their Affiliates, or (ii) any
                  Person, other than (x) any of the Initial Investors or the
                  Affiliates of any of the Initial Investors and (y) any
                  employee benefit plan (or trust forming a part thereof) of the
                  Company or any of its subsidiaries, is or becomes the
                  Beneficial Owner, directly or indirectly, of more than 50% of
                  the total voting power of the voting stock of the Company (or
                  any entity that controls the Company), including by way of
                  merger, consolidation or otherwise, and, in connection with
                  such event, the representatives of the Initial Investors cease
                  to comprise a majority of the Board.

3.    SHARES SUBJECT TO THE PLAN

            The total number of Shares which may be issued under the Plan is
1,430,000. The Shares may consist, in whole or in part, of unissued Shares or
treasury Shares. The issuance of Shares upon the exercise of an Option or in
consideration of the cancellation or termination of an Option shall reduce the
total number of Shares available under the Plan, as applicable. Shares which are
subject to Options which (i) terminate or lapse without the payment of
consideration or (ii) are settled in cash may, to the extent of such
termination, lapse or settlement, again be the subject of Options granted under
the Plan. In addition, if an Option is exercised in whole or in part by
tendering Shares, actually or by attestation, the tendered Shares may again be
the subject of Options under the Plan.

4.    ADMINISTRATION

            The Plan shall be administered by the Committee. Options may, in the
discretion of the Committee, be granted under the Plan in assumption of, or in
substitution for, outstanding awards previously granted by the Company or its
Affiliates or a company acquired by the Company or with which the Company
combines. The number of Shares underlying such substitute awards shall be
counted against the aggregate number of Shares available for Options under the
Plan. The Committee is authorized to interpret the Plan, to establish, amend and
rescind any rules and regulations relating to the Plan, and to make any other
determinations that it deems necessary or desirable for the administration of
the Plan. The Committee may correct any defect or supply any omission or
reconcile any inconsistency in the Plan in the manner and to the extent the
Committee deems necessary or desirable. Any decision of the Committee in the
interpretation and administration of the Plan, as described herein, shall lie
within its sole and absolute discretion and shall be final, conclusive and
binding on all parties concerned (including, without limitation, Participants
and their beneficiaries or successors). The Committee shall have the full power
and authority to establish the terms and conditions of any Option consistent
with the provisions of the Plan and to waive any such terms and conditions at
any time (including,

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without limitation, accelerating or waiving any vesting conditions). The
Committee shall require Participants to make arrangements which are satisfactory
to it to pay any amounts it may determine are required to be withheld for
federal, state, local or other taxes in connection with an Option.

5.    LIMITATIONS

            No Option may be granted under the Plan after the tenth anniversary
of the Effective Date, but Options theretofore granted may extend beyond that
date.

6.    TERMS AND CONDITIONS OF OPTIONS

            Options granted under the Plan shall be non-qualified stock options
and shall be subject to the foregoing and the following terms and conditions and
to such other terms and conditions, not inconsistent therewith, as the Committee
shall determine:

            (a)   Option Price. The Option Price per Share shall be determined
                  by the Committee.

            (b)   Exercisability. Options granted under the Plan shall be
                  exercisable at such time and upon such terms and conditions as
                  may be determined by the Committee, but in no event shall an
                  Option be exercisable more than ten years after the date it is
                  granted.

            (c)   Exercise of Options. Except as otherwise provided in the Plan
                  or in an Option agreement, an Option may be exercised for all,
                  or from time to time any part, of the Shares for which it is
                  then exercisable. For purposes of this Section 6 of the Plan,
                  the exercise date of an Option shall be the later of the date
                  a notice of exercise is received by the Company and, if
                  applicable, the date payment is received by the Company
                  pursuant to the following sentence. The Option Price for the
                  Shares as to which an Option is exercised shall be paid to the
                  Company in full at the time of exercise at the election of the
                  Participant in cash or by check or wire transfer, or by such
                  other means as are permitted by the Committee. No Participant
                  shall have any rights to dividends or other rights of a
                  stockholder with respect to Shares subject to an Option until
                  the Participant has given written notice of exercise of the
                  Option, has paid in full for such Shares and, if applicable,
                  has satisfied any other conditions imposed by the Committee or
                  pursuant to the Plan or the applicable Option agreement.

            (d)   Unless the Committee determines otherwise, exercise of an
                  Option shall be conditioned upon the execution by the
                  Participant of a form of stockholders' agreement prepared by
                  the Company.

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7.    ADJUSTMENTS UPON CERTAIN EVENTS

            Notwithstanding any other provisions in the Plan to the contrary,
the following provisions shall apply to all Options granted under the Plan:

            (a)   Generally. In the event of any increase, decrease or other
                  change in the outstanding Shares after the Effective Date by
                  reason of any Share dividend or split, reverse split,
                  reorganization, reclassification, recapitalization,
                  repurchase, issuance of warrants, rights or debentures,
                  merger, consolidation, spin-off, split-up, combination or
                  exchange of Shares or other corporate exchange, or any
                  distribution to shareholders of Shares (other than regular
                  cash dividends) or any transaction similar to the foregoing,
                  the Committee in its sole discretion and without liability to
                  any person may make such substitution or adjustment, if any,
                  as it deems to be equitable, as to the number or kind of
                  Shares or other securities issued or reserved for issuance
                  pursuant to the Plan or pursuant to outstanding Options, the
                  Option Price of outstanding Options, and any other affected
                  terms of the outstanding Options.

            (b)   Transaction. In the event of a Transaction, (i) the Committee
                  may provide in the applicable Option agreement or otherwise
                  that any outstanding Options then held by Participants which
                  are unexercisable or otherwise unvested shall automatically be
                  deemed exercisable or otherwise vested upon the consummation
                  of such Transaction and (ii) the Committee may, but shall not
                  be obligated to, (A) cancel all Options and make payment in
                  connection with such cancellation equal to the excess, if any,
                  of the Fair Market Value of the Shares subject to such Options
                  over the aggregate exercise price of such Options or (B)
                  provide for the issuance of substitute options or other awards
                  that will preserve, as nearly as practicable, the economic
                  terms of Options previously granted hereunder, in each case as
                  determined by the Committee in its sole discretion.

8.    NO RIGHT TO EMPLOYMENT OR OPTIONS

            The granting of an Option under the Plan shall impose no obligation
on the Company or any subsidiary of the Company to continue the Employment of a
Participant and shall not lessen or affect the Company's or such subsidiary's
right to terminate the Employment of such Participant. No Participant or other
Person shall have any claim to be granted any Option, and there is no obligation
for uniformity of treatment of Participants, or holders or beneficiaries of
Options. The terms and conditions of Options and the Committee's determinations
and interpretations with respect thereto need not be the same with respect to
each Participant (whether or not such Participants are similarly situated).

9.    SUCCESSORS AND ASSIGNS

            The rights and obligations under the Plan shall be binding on and
inure to all predecessors, successors and assigns of the Company and any
Participant, including, without

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limitation, the estate of such Participant and the executor, administrator or
trustee of such estate, or any receiver or trustee in bankruptcy or
representative of the Participant's creditors.

10.   NONTRANSFERABILITY OF OPTIONS

            Unless otherwise determined by the Committee, an Option shall not be
transferable or assignable by the Participant otherwise than by will or by the
laws of descent and distribution. An Option exercisable after the death of a
Participant may be exercised by the legatees, personal representatives or
distributees of the Participant.

11.   AMENDMENTS OR TERMINATION

            The Board may amend, alter or discontinue the Plan, but no
amendment, alteration or discontinuation shall be made (a) without the approval
of the shareholders of the Company, if such action would (except as is provided
in Section 7 of the Plan), increase the total number of Shares reserved for the
purposes of the Plan or (b) without the consent of a Participant, if such action
would diminish any of the rights of such Participant under any Option
theretofore granted to such Participant under the Plan; provided, however, that
the Committee may amend the Plan in such manner as it deems necessary to permit
the granting of Options meeting the requirements of the Code or other applicable
laws.

12.   INTERNATIONAL PARTICIPANTS

            With respect to Participants who reside or work inside or outside
the United States of America, the Committee may, in its sole discretion, amend
the terms of the Plan or Options with respect to such Participants in order to
conform such terms with the requirements of local law.

13.   CHOICE OF LAW

            The Plan shall be governed by and construed in accordance with the
laws of the State of Delaware, without regard to conflicts of laws.

14.   EFFECTIVENESS OF THE PLAN

            The Plan shall be effective as of the Effective Date.

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