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.