The milwaukee m18 fpp3b 525b 3 piece kit contains the following 1 x 18 volt m18 chiwf12 fuel12in friction ring impact wrench delivers a superior performance of up to 950nm fastening torque and up to 1491nm nut busting torque with drive control powerstate brushless motor and redlink plus bit holder 12in square friction ring no load speed 0 4250 1700min impact rate 0 4500 2300min max torque 950nm max nut busting torque 1491nm weight 33kg 1 x 12 volt dual power source c12 jsr 0 compact jobsite