Black & Decker™ Bearing Retainer is designed for 4 1/2" grinder, 4" and 41/2" angle grinder, 4 1/2" grinder kit, small angle grinder, grinder snap on, 12 and 16 ga shear, 14 and 16 ga nibbler, plate joiner, plate joiner kit, ELU plate joiner, ELU flat dowel jointer, 4 1/2" sander/polisher, 4 1/2" sander/grinder and DeWalt® grinder, angle grinder, plate joiner, 12, 14 and 16 ga shear, cordless cut off tool, 14.4 V and 18 V plate joiner as well as jointer plate.