Models DTW1001/ DTW1002/ are high torque cordless impact wrenches powered by 18V Li-ion battery.* Nut busting torque: this machine can loosen a bolt tightened to a torque of 1,600 Nm. Note that the 1,600 Nm does not mean the actual tightening torque of DTW1002 in reverse rotation mode.Features include:Extra-high max tightening torque.Brushless motor.Electric brake.Variable speed control by trigger.Forward/reverse rotation.Twin LED job light.Electronic 3-stage impact power selection (Hard/Medium/Soft).Compact and lightweight design.Ergonomic soft grip.Comes equipped with 2 x Makita 18v BL1830 3.0ah Batteries, DC18RC Charger and Makita Type 3 Connector MakPac Case.