Easy to bend because it uses polished cloth with rounded corner, even with small round surface, grinding work can be done easily.Since the pad is small and has cushioning properties, there is no worry of deep scraping, and it fits perfectly on the uneven surface.Very economical since it can be used up to the base of the pad.Professional abrasive which is planted one by one by hand and caulked.Paint removal, polishing before plating. Optimum for polishing stainless steel, iron, alloy, wood, plastic, etc.Grain Size (#):320Outer Diameter x Blade Length x Hole Diameter (mm):100 x 25 x 15Max Working Rotation Speed (rpm):13600Blade Number (sheet):4 x 18Max Working Peripheral Velocity: 72m/s (4300m/min)For general metal