Features and Benefits: Firepower flap discs durability over the conventional fibre disc results in reduction of both labor and material costs Designed to wear away evenly and present a constantly fresh work surface No backing pad required - comes with fiberglass backing plate with higher RPM rating than resin fiber discs No loading up, as new sharp abrasive particles are constantly exposed Maximum RPM: 13,300Cut and finish at the same time with consistent finish - for coarse and intermediate grinding and machining of welds, deburring, rust removal, snagging, removal of paint, etc. This means fewer change-overs.