... Product Description Model: HP-8009 1inch HEAVY DUTY EXTENDED ANVIL AIR IMPACT WRENCH,Reverse lever in forward and reverse, and 3 ... ./ 51mmFREE SPEED: 3,800rpm MAX. TORQUE: 1,900/ft-1b/ 2,600N-M AIR INLET: 1/2inch (PT)AIR HOSE: 3/4inch (ID ... ) AVG.AIR CONSUMPTION: 40cfm/1.13 cbm ...