Black & Decker™ 1/2" Chuck and Key is designed for type 1 ELU27158 1/2" drill, type 1 ET1275 1/2" drill 0 - 600 RPM, type 1 ET1265 1/2" drill 0 - 850 RPM, type 1 27158 13 mm holegun, DeWalt® type 1 DW231 VSR electric drill, type 1 DW235-220 V 1/2", DW235G 1/2", DW239 1/2", DW245 1/2", DW249 1/2" electric drill, type 2 DW238 1/2", DW248 1/2" electric drill, type 1 DW235GV V drill, DW235GB B drill, type 1 DWD210G 1/2" drill and type 2 DW235G 1/2" variable speed reversing drill and Craftsman® 900271580 drill.