Designed for universal work on small and medium-sized metal surfaces, e.g. removing rough grinding traces, removing oxidation, and light deburring work. Achieve matte and satin-finished surfaces. POLIVLIES® grit size 180 M = medium (red-brown) The CD clamping system has a threaded connection with female thread (metal/plastic). Also compatible with the following commonly used systems: PSG, Power Lock Type II "turn on", SocAtt, Turn-On.