POWERTEC Drill Bit Stop Collar Set, 7 Piece Set Adjustable Drill Bit Depth St…

POWERTEC Drill Bit Stop Collar Set, 7 Piece Set Adjustable Drill Bit Depth Stopper with Allen Wrench, Bits Stop with Imperial System Size Markings – 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2” (71491).

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