Dura-Gold 40-Piece 1" Abrasive Conditioning Polishing Buffing Wheel, Remove Rust Dura-Gold 40-piece 1" diameter abrasive conditioning, polishing, and buffing wheel set with 10 each of grits 120 brown, 180 green, 320 red, and 400 black. They have 1/8" steel shanks for use with rotary tools, grinders, hand drills, and other power tools. Premium quality abrasive wheels that are commonly used for metal surface cleaning, polishing, grinding, dusting, deburring, and removing rust, residues, paint, and other metal processing applications. The wheels have durable, thick, flexible abrasive fibers that deliver a great polishing effect, enabling you to achieve a smooth, uniform finish. The flexible fibers conform to irregular surfaces so the wheels can fit into tight places. These buffing wheels have a wide range of applications and are suitable for all types of detail work on both hard and delicate materials. The wide variety of abrasive grits enables you to choose the surface conditioning and polishing level depending on the material you are working on metal, wood, plastic, ceramic, paint, and more.