Variable speed actuation trigger and air regulator power control Tough reinforced aluminium housing for increased durability, Requires 10mm bore hose Heavy duty twin impact hammer mechanism, Exhaust under pistol grip handle Max torque 680Nm (500ft-lb), Max Speed 7000rpm, Max air pressure 6.2bar (90psi) Average no load air consumption 6.5cfm, Air consumption on load (6.2bar) 18cfm, Weight: 6.2390820146 Pounds, Manufacturer: CAT131