Ideal to remove or tighten nuts or bolts. Made of induction hardened chromium-vanadium steel (Cr-V) delivers longer tool life and durability. Featuring nickel dull electroplating finish to improve corrosion resistance The knurl adjustment delivers a smooth adjustment that won’t loosen Laser etched metric and imperial markings for easy fastener size selection, Weight: 0.661386786 pounds, Manufacturer: Ryobi