The Makita DTW180 Brushless LXT Impact Wrench comes with 2-stage impact power selection, trigger controlled variable speed and forward/reverse rotation for complete control. There is also a reverse rotation auto-stop mode; this mode works only with pulling the trigger fully in counter-clockwise rotation. When the bolt/nut gets loosened sufficiently, the tool stops the impact and rotation in 0.2 seconds.It has a compact, lightweight design incorporating an ergonomic, soft grip for increased comfort and control. The electric brake provides increased safety during operation and its LED job light is ideal for jobs in darker areas. Specifications: Bit Holder: 3/8in Square.No Load Speed: 0-1,300/0-2,400/min.Impact Rate: 0-2,000/0-3,600/bpm.Max. Fastening Torque: 180Nm.Max. Nut Busting Torque: 310Nm.Bolt Capacity: Standard M8-M16, High Tensile M6-M12.Weight: 1.2kg.