Diablo, 3-1/2" 60 grit Starlock carbide grit oscillating sanding plate. Diablo's Starlock oscillating sanding plates feature application specific designs that deliver maximum durability and longer life in sanding applications. A 60-grit sanding plate quickly removes and levels paints and varnishes. Open-coat carbide grit reduces material build-up and clogging for longer life. Tool free quick-change interface fits Fein and other Starlock tools, also compatible with most Non-Starlock multi-tools.