Ideal for external chamfering of damaged bolts and pipes; Quickly repair cutting surfaces and burrs such as bolts and increases work efficiency. It demonstrates power on stainless steel, brass, hardened steel, wood, mild steel, fiberglass, copper, hard plastic, etc. Can also be used for round bar steel, rod steel, cutting bolts, pipes, screws, etc. Compatible with 1/8 (3 mm) to 3/4 (19 mm)); Material: Shaft: Zinc Alloy, Blade: HSS steel; Product Size: (W x H x D): 1.1 x 1.1 x 2.0 inches (29 x 29 x 50 mm); Weight: 2.5 oz (66 g); Note: Please use with an impact driver without impact (may cause damage.