NITROCAT 3/8" impact wrench with twin hammer mechanism and durable light-weight composite housing. Designed for long operation 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, all-around automotive applications, and tire service and assembly. Patented tuned exhaust muffler technology allows 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 on hands, wrists, and arms. All NITROCAT models are suited for heavy-duty frame work (medium to heavy-duty trucks). Easy operation flip lever forward and reverse. Operates at 86 decibels with a loosening torque of 700 ft/lb and a working torque of 100-400 ft/lb. Free speed: 10,000 rpm (revolutions per minute). Air flow pressure: 90-120 psi (pounds per square inch). Weight: 2.7 lb, Length: 6.75". CE (Conformite European) Certified, meets EU (European Union) safety, health, and environmental requirements. 1 year parts and labor warranty, assembled in the USA.