Collars that fit on a drill bit to control the depth of the hole. Quality tempered steel for durability. Prevents over-drilling of hole depth. Adjustable slide collar over bit, place at desired depth, tighten set screw. Contents 3 collars: 1/4", 5/16
Collars that fit on a drill bit to control the depth of the hole. Quality tempered steel for durability. Prevents over-drilling of hole depth. Adjustable slide collar over bit, place at desired depth, tighten set screw. Contents 3 collars: 1/4", 5/16