Black & Decker™ 50 mm Field is designed for large angle grinder, 5" and 7" angle grinders, compact angle grinder, right angle grinder, 7"/9" electric sanders/polishers, 7"/9" 2-speed right angle polisher, electronic polishers, 7" electronic polishers, 7" sander, 4800 RPM heavy-duty sander, disc sander, polisher/sander and DeWalt® electronic polisher.