ZIW818L 1 inch Impact wrench w/6 inch extension / twin hammer mechanism Lightweight and ergonomically designed ZIW818L 1 inch Air Impact Wrench that offers MAX torque of 1800(2400) ft-lb (NM) Means You’ll Have The Power To Burst Through Those Stubborn Bolts. Comfortable And Easy To Use. New Twin Hammer Design: Adjustable 3 stages speed for Forward/Reverse [...]