Flap Disc, Abrasive Type Coated, Abrasive Material Zirconia Alumina, Grade Extra Coarse, Backing Plate Material Plastic, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Density Rating Standard, Flap Disc Type Type 27, Overall Diameter 5 in, Series Gemini R766, Backing Material Cotton, Backing Weight X, Grit P36, Maximum Operating Speed 12,000 RPM, Color Blue, Features Trimmable