The HERCULES® Professional 20V Brushless Cordless 1/2 in. Ultra Torque Impact Wrench with Friction Ring Kit delivers 1500 ft-lbs of bolt breakaway torque at speeds up to 1600 RPM to power off nuts and bolts fast. The convenient four-mode selector operates at three speed ranges of 0-600/0-1100/0-1600 RPM. Auto mode includes both auto-shutoff/bolt removal mode to prevent overloosening fasteners, plus an auto-tighten mode to prevent overtightening. This convenient kit includes a 20V 5 Ah battery and multi-volt fast charger.