Stop Collar Set
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 for wood, metal, concrete / masonry. 8 piece set includes Allen wrench and one stop collar in each of the following sizes: 1/2″, 7/16”, 3/8”, 5/16”, 1/4”, 7/32”, 3/16”, 1/8”