Black & Decker™ Clamp is designed for 4 1/2" grinder, 4", 4 1/2" and 5" angle grinder, 4 1/2" small angle grinder, 4 1/2" grinder snap on, 4 1/2" sander/polisher, 4 1/2" sander/grinder, right angle grinder and DeWalt® grinder as well as angle grinders.