Dremel EZ541GR EZ Lock Grinding Wheel, 2pc. The only Dremel accessory designed to flush-grind a surface. The unique domed shape and extra-thick reinforced aluminum oxide material allows the Dremel Grinding Wheel to be used on either its side or face for surface grinding, sharpening, and flush-grinding. Applications include extended general-purpose grinding on metals, castings, welded joints, rivets and rust. For use with the EZ402 EZ Lock Mandrel.