Aluminum Stop Collar Set - Drill Bit Depth Stop - Superior Split Ring Design - 8 Piece Set (1/2", 7/16”, 3/8”, 5/16”, ¼”, 7/32”, 3/16”, 1/8”) - Drill Bit Holder auspowers_batchone Features:Super-strong steel material for long-lasting

Features:Super-strong steel material for long-lasting durability - M4

but it also provides the cleanest cuts on the market

all of which require extra foot traction

cable connection

Full instructions included

Aluminum Stop Collar Set - Drill Bit Depth Stop - Superior Split Ring Design - 8 Piece Set (1/2", 7/16”, 3/8”, 5/16”, ¼”, 7/32”, 3/16”, 1/8”) - Drill Bit Holder auspowers_batchone Features:Super-strong steel material for long-lastingAluminum 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 Superior split ring design made from durable, lightweight aluminum for easier use. 5x holding power vs set screw design. Maintain precise and consistent hole depths and prevent over under drilling mistakes. Quick and easy adjustment at any point on drill bit flutes shafts. Fits twist and brad point drill bits