Black & Decker™ Needle Bearing is designed for type 1 ET1275 1/2" 0 - 600 RPM drill and DeWalt® type 1 DW245, DW246, DW248, DW249 1/2" electric drills, type 2 DW248 1/2" electric drill, type 1 DWD210G, DWD220, DWD215G 1/2" drills, type 2 DWD215G 1/2" drill, type 1 DWD216G 1/2" keyed VSR mid handle drill, type 1 DWD520, DWD520K, DWD525K 1/2" hammer drills, type 2 DWD520, DWD520K, DWD525K 1/2" hammer drills.