Aluminum Stop Collar Set - Drill Bit Depth Stop - Superior Split Ring Design - 8 Piece Set (1/2", 7/16, 3/8, 5/16, , 7/32, 3/16, 1/8) - Drill Bit Holder

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Feature

Precise and consistent results, prevent over / under drilling, ideal for repeated hole depths
Quick and easy adjustment at any point on drill bit flutes / shafts
Split ring collar has 5x holding power vs. Standard set screw design
Durable, lightweight aluminum for superior performance over steel
Universal sizes: 1/2", 7/16, 3/8, 5/16, 1/4, 7/32, 3/16, 1/8