Price per piece: 1,200 yen (tax excluded); This product is ordered by lot. Purchase unit: 5 pieces; Shape allows you to use the top, bottom and outer surface of the disc; Flexible and clean finished surfaces for work; Fits both thin and thick metals; Easy to use; For general grinding, polishing, and substrate polishing; Welding bead removal; Deburr, chamfering, and paint removal; Grain size (#): 60; Outer diameter: 3.9 inches (100 mm) Hole Diameter: 0.04 inch (1 mm) 5. Maximum RPM: 13,600; Blade Quantity: 72; Maximum Usage Period: 72 m/s (4,300 m/min); Thickness: > 0.3 in (8 mm); Aluminum Wheting; *Please note that this product will not be cancelled after payment. COD Payment, Designate Delivery Time, and Store Counter PIckup are not available. Thank you for your understanding.