Makita DTW180RMJ 18v LXT Brushless Impact Wrench inc 2x 4.0Ah Batteries & Charger in Makpac Case This Makita DTW180 18v LXT Brushless Impact Wrench has improved reverse rotation auto stop mode. This mode works only with pulling the trigger fully in counter-clockwise rotation. When the bolt/nut gets loosened enough, the tool stops the impact and rotation in 0.2 seconds. It is also a compact and lightweight design and comes with 2x BL1840 4.0Ah Batteries, DC18RC compact Charger in a Makpac Type 2 Connector Case. FEATURES Electric Brake Variable speed control by trigger Forward / reverse rotation LED job light Brushless motor Ergonomic soft grip Reverse rotation auto stop mode 2-stage impact power selection Compact & Lightweight SPECIFICATION Nut Busting Torque: 310 Nm Battery Type: Lithium-ion Voltage: 18 v Driving Shank: 3/8\" Square No Load Speed (Hi): 0 - 2400 rpm No Load Speed (Lo): 0 - 1300 rpm Blows per Minute (Hi): 0 - 3600 ipm Blows per Minute (Lo): 0 - 2000 ipm Standard Bolt: M8-M16 High Tensile Bolt: M6-M12 Max Fastening Torque: 180 Nm Weight: 1.2 - 1.5 kg NOISE & VIBRATION Noise Sound Pressure: 89 dB(A) Noise Sound Power: 100 dB(A) Noise K Factor: 3 dB(A) Vibration Fastening Bolt: 9.0 m/sec² Vibration K Factor: 1.5 m/sec²