Makita DTW190Z 1/2" Square Impact Wrench 18V Cordless Bare Tool - Battery and Charger not yet included Small and versatile Most advanced, durable and dependable 18V tools on the market Longtime Storage Heavy Duty Pack Product Features Electric brake Variable speed control trigger Forward/reverse rotation LED job light Equipped with Battery protection circuit: designed to protect the battery from damages due to over discharge, high temperature or overload current. Ergonomically designed handle with rubberized soft grip fits your hand perfectly to provide maximum control and comfort. Specifications Fastening Capacities Standard Bolt: M8 - M16 (5/16" - 5/8") High Tensile Bolt: M8 - M12 (5/16" - 1/2") Square Drive 12.7 mm (1/2") Impacts per minute (ipm) 0 - 3,000 No load speed (rpm) 0 - 2,300 Max. fastening torque 190 N·m (140 ft.lbs.) Overall length 176 mm (6-15/16") Sound power level 105 dB(A) Sound pressure level 94 dB(A) Vibration level Impact tightening of fasteners of the maximum capacity of the tool: 8.5 m/s² Net Weight 1.4 kg (3.2 lbs)