Features:Ultra-compact air ratchet wrenches fit in the palm of the hand.Perfect for working around tightly-packed engine compartments.Hardened steel anvil and twist reverse mechanism.Rear exhaust with baffle reduces noise.Specifications:Model No: SA230Drive: 1/4"SqMaximum Torque: 20lb.ft(27Nm)Free Speed: 300rpmAir Consumption: 3cfmOperating Pressure: 90psiInlet Size: 1/4"BSPLength: 127mm Weight: 0.36kgNoise Power/Pressure: 102/91dB(A)Vibration/Uncertainty: 2.5/0.08m/s�Load Vibration: 2.5Noise Power: 91Noise Pressure: 102Height: 47Width: 157Length: 59.