Milwaukee® Brush Retaining Screw is designed for grinder, 7" heavy-duty polisher, electric drill/driver, D.I. 6000 RPM dial speed sander, 2.25 max hp 7" and 9" 5000 RPM sander, drill press, 2.25 hp 7" and 9" 0-6000 RPM sander, lightweight sander, 2" die grinder and reversing compact drill.