Black & Decker™ Collet Closure is designed for type 101 4287 die grinder, type 101 4287-220 220 V 1 1/2" die grinder and DeWalt® type 1 DW887, type 2 DW887, DW887-220, DW887-AR, DW887-B2, DW887-BR, type 3 DW887, DW887-220, DW887-AR, DW887-B2, DW887-BR, type 4 DW887, DW887-AR, DW887-B2, DW887-B3 and DW887N die grinders.