Air Impact Wrench Kit, General Duty, Standard Anvil, Square Drive Size 1/4 In., Max. Bolt Capacity 5/16 In., Torque Range 25 to 40 ft.-lb., Max. Torque 50 ft.-lb., Average CFM @ 15 Second Run Time 1.7, CFM @ Full Load 18.0, Free Speed 11, 000 rpmRing Retainer Type, Pistol Grip Style, Required Pressure 90 psi, Air Inlet 1/4 In. NPT, Min. Hose Size 3/8 In., Overall Length 6-1/4 In., Composite Handle Material, Handle Type Pistol Grip, Composite Housing Material, Tool Weight 1.37 lb. RestrictionsNote: For impact sockets, go to DrillSpot.com . Impact WrenchesLight- and general-duty wrenches are best for automotive, basic maintenance, and light production applications. Light-Duty Kit 1XFG7 includes 10-pc. socket set and carrying case. 5ZR88 includes 10 sockets, 2-oz. in-line oiler, oil bath clutch, and carrying case. General-Duty Kit 1FYV1 includes 2Z747 impact wrench, 4-oz. bottle of air tool oil, quick coupler, male plug, 3" extension, carrying case, and 1/2", 9/16", 5/8", 3/4", and 7/8" sockets.Max. psi: 90 Butterfly throttles on in-line units allow 1-handed forward and reverse control