With shapes easily polished in parallel by alternately arranging long and short polishing cloths.Having less clogging and burning even when used for polishing stainless steel etc., stable grinding performance lasts from initial polishing to the end of use.For welding bead removal, burr removal, and chamfering of stainless steel and aluminum.Grain Size (#):40Outer Diameter x Blade Length x Hole Diameter (mm):100 x 20 x 16Max Working Rotation Speed (rpm):13600Blade Number (sheet):60Max Working Peripheral Velocity: 72m/s (4300m/min)Including 10 pieces per 15mm hole adapter box (separately sold item no. 5 pieces included: GPTAS-5P)When working, please wear protective equipment such as safety hat and safety glasses.Please check to make sure that the working conditions of the tool used such as outer diameter, hole diameter, rotation number etc., are compatible.