*Mechanism : Twin Hammer *Composite and magnesium material *Highest durable Japanese steel anvil *Handle exhaust *Forward : 3 positions; Reverse : 1 position *Nut-Busting Torque 1,200 ft-lb/ 1,620 N.m. *The cylinder is using material of FCD45 and has special heat treat, it has high wear resistance *Blade with spring mounted, make sure the blades can be opened when working *Simple structure, easy to service and repair