Dremel 511 Abrasive wheel DREMEL: Finishing Abrasive Buffs grit 180 & 280 Finishing abrasive buffs medium + course and Finishing abrasive buffs fine. For precise and delicate material removal on metal, glass, wood and plastic. The flexible material enables to work on tight and irregularly shaped areas. These buffs can be used with mandrels 402                                   Technical specifications Shank diameter:     3.2 mm Working diameter: 25.0 mm Grit:     180 / 280 Maximum Speed:  20000 rpm Quantity     2