The Milwaukee M18ONEFHIWF12-0X is a 1/2 brushless 4 mode one key impact wrench. The high torque impact wrench has a max nut busting torque of 1898nm and fastening torque of 1356nm. The machine has a power state brushless motor along with a led work light. M18ONEFHIWF12-0 18v Body Only friction ring end 4 mode wrench mode 1 130nm mode 2 400nm mode 3 1356nm mode 4 1898nm nut busting torque brushless motor led light