Square Drive : 1" Air Pressure : 100-170 psi Mechanism : Pinless Hammer Max Torgue : 2800 ft·lb Applicable Torque : 1106-1895 ft·lb Blade Length : 2.1in Weight : 34Ibs Anvil Length : 8.85in No-Load Speed : 4200rpm Air Inlet : 1/2in PT Hose Inner Dia. : 1/2in SHIPPINGWEIGHT:39LBS