Superior Electric RV13M02 1/2″ Keyless Drill Chuck x 20 UNF Mount

Compatible with Makita, Milwaukee, DeWalt, Porter Cable, Bosch, cordless and portable drills. 1/2″ x 20 UNF Mount without Collar. Specifications: Maximum capacity(in): 1/2″ | Minimum Capacity(in): 0.06″ | Mount: 1/2″-20UNF.