Exhibit 10.18
                                                                   -------------
           MedSource
              Technologies

           Mr. William Ellerkamp
           68 Wintergreen Lane
           Groton, MA 01450

           Dear Bill,

           It gives me great pleasure to present this Offer of Employment. We
           are impressed with your business skills and your desire to be part of
           building a significant and successful new entity serving the medical
           device industry. The primary terms of your employment with MedSource
           Technologies are specified below:

           Title:                   VP Strategic Initiatives, reporting to CEO

           Commencement:            Your employment will commence on the most
                                    immediate, mutually agreeable date with the
                                    expectation that you will begin full time on
                                    July 1.

           Responsibilities:        As outlined in Exhibit A.

           Office Location:         Initially, you will work out of your home in
                                    Massachusetts, with the expectation you will
                                    regularly travel to Minneapolis. Subsequent
                                    to the responsibility transition outlined in
                                    Exhibit A, and taking into account your
                                    children's schoolyear, your principle place
                                    of business will be located in Minneapolis,
                                    Minnesota.

           Salary:                  $178,750 annually to be paid as dictated by
                                    the MedSource payroll schedule.

           Bonus:                   Bonuses are paid at the discretion of the
                                    Board of Directors of MedSource Technologies
                                    and are based on the Company achieving
                                    annual target performance thresholds. Your
                                    annual bonus opportunity will be 50% of your
                                    base salary ($89,375) at target performance.
                                    The bonus is uncapped. No bonus will be due
                                    to you if you are not employed by MedSource
                                    for any reason at year-end.

          Common Stock:             Subsequent to the  responsibility transition
                                    outlined in Exhibit A, and within twelve
                                    months thereafter, you will be expected to
                                    purchase an aggregate of $100,000 of
                                    MedSource stock.The purchase can be
                                    completed in conjunction with any
                                    institutional or public financing round, or
                                    through early exercise of options (with
                                    company repurchase right on unvested shares)
                                    . It is expected that (a) 50% of the after-
                                    tax proceeds of any bonus paid by MedSource
                                    and/or (b) after-tax proceeds from the sale
                                    of your TFX securities, will be





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                                    applied to the purchase of MedSource stock
                                    to the extent $100,000 of MedSource
                                    securities has not been acquired.

         Stock Options:             You will be eligible to participate in the
                                    MedSource non-qualified Stock Option Plan.
                                    You shall receive options, at signing, to
                                    purchase 52,500 shares of the Company's
                                    Common Stock at an exercise price of $16.25
                                    per share with four year vesting. There will
                                    be an opportunity to earn additional options
                                    to purchase 27,500 shares as mutually agreed
                                    upon performance milestones are achieved
                                    within the next 12 months.

         Vacation:                  You will be granted three weeks (15 working
                                    days) of vacation per year or as specified
                                    by Company policy. You will be entitled to
                                    take paid holidays as determined each year
                                    by the Board of Directors.

           Benefits:                Subject to the terms and conditions of
                                    eligibility, you will be entitled to the
                                    benefits package provided to all full-time
                                    senior executive employees of MedSource,
                                    which will include a 401k plan, medical,
                                    life, and disability insurance coverage.

           Confidentiality:         You will be required to enter into a
                                    non-compete and Confidentiality Agreement.
                                    The non-compete will provide six (6) months
                                    severance pay in the event you are
                                    terminated without cause during the term of
                                    the agreement. The non-compete will also
                                    provide the Company with the ability to
                                    extend the non-compete period based on cash
                                    and/or stock consideration.

           Expenses:                You will be entitled to  reimbursement  for
                                    business  related  out-of-pocket  expenses
                                    which  include: mileage, meals and other
                                    appropriate business related expenses.

                                    Relocation expenses will be reimbursed per
                                    company policy or as otherwise approved by
                                    the VP-Human Resources and Business
                                    Integration.

           Bill, the aforementioned outlines the primary terms and conditions of
           your employment as we discussed recently. Your employment is
           "at-will".

           On behalf of those of all of us who have had the pleasure of meeting
           with you, welcome to the team. We are excited at the prospect of your
           joining our management team and helping us to build a world leading
           company in the medical device contract manufacturing market.

           Sincerely,

           /s/

           Rich Effress

           Chairman and CEO

           MedSource Technologies