Dremel 512E EZ Lock Fine Grit Finishing Abrasive Buffs, 2 pcsGreat for cleaning and light sanding. The 512E 320-grit abrasive buff is ideal for use on metal, glass, wood, aluminum and plastics and can easily remove tarnish from brass. Designed for use with the EZ402 EZ Lock Mandrel or Standard 402 Mandrel.-Two abrasive buffs per package-Compatible with all Dremel rotary tools-Great for car detailing, and restoring door and window hardware-Compatible with both EZ402 EZ Lock mandrel and standard 402 mandrel-First patented system of its kind-Light sanding and tarnish removal – also great for car detailing and restoring door & window hardware-Compatible with all Dremel rotary tools(Includes)2 Fine 320 Grit Buffs-Do not run in excess of 15,000 RPM.