Features and Benefits: * Quick 1/2 turn on, 1/2 turn off Roloc disc fastening system * Use with 3M Roloc Disc Pad 05540 * Best used on steel parts * Maximum operating speed: 18,000 * 3 Coarse, Brown * 25 discs per box Used to quickly remove cut cork or paper gaskets and form in place gasket materials prior to the assembling of power train components engine blocks, heads, and valve covers.