(b)(4).Complaint sample was evaluated and the reported event was confirmed.Device history record (dhr) was reviewed and no discrepancies were found.Root cause was unable to be determined.Visual examination of the returned product identified: a modular center post reamer (lot 6476839) was returned for evaluation.As returned, an unidentified guide pin is seized in the thru hole.The pin diameter measures 3.15mm at the cutting end of the reamer.The point of the pin is damaged.Two of four sides of the cutting feature is fractured/cracked.Material hardness is conforming to print specification.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.This event was previously reported under: 0001825034-2020-04031 incorrectly.
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