The associated device was returned and evaluated.A visual inspection of the returned device confirmed the stated failure mode.The threaded insert, where the driver attaches, was protruding out of the device and would not allow the driver to sit flush with the handle as intended.The threads did mate with a driver.The device was manufactured in 2016 and exhibits signs of extensive wear/ usage.A review of complaint history did not reveal additional complaints for the listed batch.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.We recommend that all reusable instruments be routinely inspected for wear and damage and replaced as necessary.Based on this investigation, the need for corrective action is not indicated.Should additional information be received, the complaint will be reopened.No further investigation is warranted for this complaint; however we will continue to monitor for future complaints and investigate as necessary.We consider this investigation closed.
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