Special fibers are impregnated with abrasive grains for easy polishing; Stainless steel, metal polishing, cleaning, and woodworking; Tools: Charging impact screwdriver; Granularity (#): 240; Maximum rotational speed (rpm): 3000; Non-woven fabric sheets (sheets): 24; Outer diameter x width: 1.2 x 1.0 inches (30 x 25 mm); Shaft diameter x shaft length: 0 mm); Emery, alumina grinding material. Cancellation after payment Please note that this product is delivered directly from the manufacturer or client. COD Payment, Designate Delivery Time, and Store Counter PIckup are not available. Thank you for your understanding.