MACHINE: Designed for use on portable drills, bench grinders and air tools. 6 x 2 120 Grit Aluminum Oxide Unmounted Flap Wheel. Coated, Fine Grade, 1 Center Hole, 6,000 Max RPM. Tru-Maxx. 6 x 2 120 Grit Aluminum Oxide Unmounted Flap... Benchmark Abrasives aluminum oxide flap wheels are designed to blend, deburr, dimension and descale a variety of metals, including carbon steel. Merit Abrasives 6 x 2 80 Grit Aluminum Oxide Unmounted Flap Wheel Coated, Medium Grade, 1 Aluminum Oxide Flap Wheel 1 1/2" X 1/2" Flap Wheel - 60 Grit 5/PK 120 Grit Aluminum Oxide Flap Wheel APPLICATION: metal, wood, rubber, fliberglass, plastic Benchmark Abrasives 6" X 2" X 1" Unmounted Flap Wheels are the perfect tool for your grinder when a workpiece needs moderate surface blending or deburring So if you have a flat or irregular surface made of metal, wood, rubber, fiberglass, or plastic that you need to grind, blend, deburr, clean, polish, or sand the 6 inch by 2 inch by 1 inch flapper wheel is the abrasive you're looking for. Unmounted large flap wheels can conform to most shapes and are especially effective on pipes, tubes and other cylindrical work pieces.