Forney 71883 Aluminum Oxide 6500 rpm 9 Dia. in. Grinding Wheel 1/4 in. Thick By August 14, 2026 No Comments Used on ferrous materials. For use on right angle grinders. Maximum Speed: 6500 rpm. Material: Aluminum Oxide. Compatibility: Right Angle Grinder. Hand Tools And Tool Accessories. Thickness: 1/4 in. Continue Reading