Average CFM 15 Second Run Time 1. 00. CFM; Full Load 4. 0; Required Pressure 90 psi; Air Inlet 1/4 In. NPT; Min. Hose Size 3/8 In.; Overall Length 18 In.; Straight Handle Type; 1/2 In. Square Shank; Needle Housing Lock; Lever Throttle; Includes 1/8 In. Steel Needles and 1. 37 In. Wide Chisel