Prepared by R.R. Donnelley Financial -- CONSENT OF GRANT THORNTON, LLP

We have issued our report dated February 9, 2001, accompanying the financial statements of ACT Medical, Inc. contained in Amendment No. 1 to the Registration Statement and Prospectus of MedSource Technologies, Inc. We consent to the use of the aforementioned report in Amendment No. 1 to the Registration Statement and Prospectus, and to the use of our name as it appears under the caption “Experts.”