NITROCAT 3/4" impact wrench with rugged twin hammer mechanism designed for long operating cycles with few individual parts for easy repairs. The twin hammer is lubricated with grease and is easily accessible from the outside via greasing fitting without opening the housing. Recommended for industrial use, large agricultural service vehicles, bus/large automotive use, all-around automotive applications, and tire service and assembly. Patented tuned exhaust muffler technology allow discharged air to pass without developing back pressure so that no power is lost, while reducing noise. Through the handle exhaust design reduces hazards from breathing exhausted air particulates, and eliminates blow-by into the operator's eyes and lungs. Patented ergonomically engineered handle relieves stress and fatigue in hands, wrists, and arms. Easy operation flip lever forward and reverse. Operates at 85 decibels with a loosening torque of 1400 ft/lb and a working torque of 200-1200 ft/lb. Free speed: 4500 rpm (revolutions per minute). Air flow pressure: 90-120 psi (pounds per square inch), hose size: 1/2". Weight: 7.9lb, Length: 9.25". CE (Conformite European) Certified, meets EU (European Union) safety, health, and environmental requirements. 1 year parts and labor warranty.