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

using and disassembling

16" Color : Red

Full instructions included

Features a 3" Reach and clamps materials up to 23/4" Thick

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