Features: Combination of composite materials, alloyed metals and twin hammer design result in a lightweight, durable and powerful air impact wrench. Soft grip handle with downward facing exhaust make this wrench comfortable on the hands and ears and limits the circulation of brake dust on wheel applications. Fingertip control of power and direction via lever on rear of wrench. Suitable for professional garage use.Specifications: Model No: GSA6000 Drive: 3/8"Sq Working Torque: 320lb.ft(435Nm) Maximum Torque: 370lb.ft(503Nm) Ultimate Torque: 400lb.ft(544Nm) Free Speed: 10000rpm Air Consumption: 6.7cfm Operating Pressure: 90psi Inlet Size: 1/4"BSP Weight: 1.2kg Noise Power/Pressure: 102.42/91.42dB(A) Vibration/Uncertainty: 4.4/2.2m/s� Load Vibration: 4.4 Noise Power: 102.42 Noise Pressure: 91.42 Height: 68 Width: 181 Length: 196