Bosch's Starlock oscillating multi-tool carbide grit delta sanding pad provides professional performance in sanding applications in wood, wood with paint and thinnest. Starlock blades are compatible with oscillating multi tools from Bosch, Fein, Makita, Milwaukee, Rockwell, Hitachi, Rigid, Ryobi and other pro tools. The large delta shaped surface area provides increased coverage and the blades have dust extraction holes for use with vacuum systems.