Per the new matrix on (b)(4) 2013, this file is being reported as a malfunction.Upon completion of the investigation, it was noted that the supplier evaluation revealed that the drill body has damaged tangs; at the distal end of each tang, the outer diameter is burnished and scored (shallow cuts into the surface), and the cutting edges are dulled, (deformed, rounded).Excluding the damaged areas, their cutting edges were judged to be sharp.The perforator's poor cutting action is related to the damage on the drill body and inner drill.The device history records for this perforator were reviewed, and it shows that all tests and inspection, including a drilling test on each perforator met specification requirements.We will continue to monitor for this or similar complaints for this product code.At the present time, this complaint is considered closed.
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