NITROCAT 1/2" impact wrench with twin clutch mechanism and Kevlar reinforced body armor composite housing. Twin clutch design results in a high torque direct impact, and is lubricated by 5w-30 motor oil to prevent issues in colder climates. Oil can be refilled easily by the build in oil-screw into the motor clutch housing. Exhausts air through the handle which reduces breathing hazards, eliminates blow-by into the operator's eyes and lungs, and reduces noise. 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 1295 ft/lb and a working torque of 200-900 ft/lb. Free speed: 8000 rpm (revolutions per minute). Hose size: 3/8", Air flow pressure: 90-120 psi (pound per square inch). Weight: 4.5 lb, Length: 8.25". CE (Conformite European) Certified, 2 year parts and labor warranty.