Great 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. The set includes two Extra Fine (320 Grit) Finishing Abrasive Buffs. The accessories are compatible with the patented EZ Lock system making accessory changes 6X faster than using a standard mandrel. The abrasive buffs are designed for use with either the EZ402 EZ Lock Mandrel or Standard 402 Mandrel.