SPLINE DRIVE Super Duty Aluminum Impact Wrench 1900ft/lb maximum torque. Low wear “pin-less” hammer. Enlarged inner cavity of D handle grip is more suitable for US users. Triple heat treated Ni-Cr-Mo alloy steel hammer mechanism parts and anvil, provide ultimate reliability. Aluminum hammer case with molded front rubber impact buffer incorporating a molded CAT claw Symbol. Aluminum housing with rubber over-mold for increased protection Molded AIRCAT logo & model number. Ergonomic trigger with rubber inlay for comfort. Swivel air inlet for maneuverability. 9 combined reverse & power management switches. Rugged bolt-on side assist handle can be located right-left side by rotating hammer case. Combined friction ring and through hold anvil for positive socket lock-on 1900-A Yes - LEAD