The Makita DTW251 LXT 1/2in Impact Wrench has a compact, lightweight design and a powerful 4 pole motor, with a conveniently located push-button for forward and reverse options. The body is fitted with an ergonomic soft grip, ideal for prolonged use and less user fatigue. There is also an LED job light with afterglow for working in dark spaces. Specifications: Bit Holder: 1/2in Square.No Load Speed: 0-2,100/min.Impact Rate: 0-3,200/bpm.Max. Torque: 230Nm. All vibration figures quoted are Tri-axial to EN 60745 2006. Noise Sound Pressure: 90 dB(A).Noise Sound Power: 101 dB(A).Noise K Factor: 3 dB(A). Vibration: Fastening Bolt: 9 m/sec².Vibration K Factor: 1.5 m/sec².