3/4 Quiet Impactool? MAX Durability Built to last and designed to withstand tough use in rugged environmentsMAX Power 1350 ft-lbs maximum reverse torque from a tool that weighs just 7.4 lbs and is compact enough to access tight spacesMAX Productivity An air motor that's 16% more efficient than its predecessor and an easy-to-clean inlet screen means less downtime, better tool performance, and less money spent on compressed air Drive Size 3/4 inDrive Type SquareRetainer Type Thru-Hole/RingTorque 200.00 ft lb Min , 900.00 ft lb Max Max. Torque 1350 ft lbCycle Rate 1150 blows/minFree Speed 7000 rpm Max Air Consumption 8.500 CFMAir Consumption Load 32.0 CFMPressure 90.00 psiNoise Level 91.1 dB Max Inlet Size 1/2 in NPTF Hose Size 1/2 in Min Length 8 1/2 in, 8 1/2 in Max Control Type On/Off/ReverseHandle Type Pistol GripStyle Heavy DutyHeight 3.300 in, 8.100 inHousing Material CompositeWidth 8.100 in, 3.300 inWt. 7.40 lb