1/2 Drive Ratchet Nut Compatible with all Li-ion Battery 1830,1840,1850. Hammer and anvil impact mechanism are manufactured using the best raw materials with the highest quality steel and unique heat hardening process for maximum fastening and driving power. High Torque & Variable Speed?
520Nm Max Fastening Torque, 3000 rpm maximum speed, 4000 ipm Beat frequency. The maximum size of the handheld mounting screw is 28mm.