The makita tw004g 40v max xgt brushless 1 2 drive impact wrench is a cordless impact wrench powered by 40v max xgt li-ion battery. The new xgt revolutionary technology ensures that battery and the tools' motor technology work together for optimum performance. The tool features a trigger switch with full speed mode: variable speed mode can be changed to full speed mode simply by pushing a button. Because in full speed mode the trigger travel is shorter, the full speed is reached faster. The built in led job light provides optimal vision throughout. Features & benefits auto stop system available both in forward reverse rotation modes brushless motor compact & lightweight constant speed control electric brake electronic 4 stage impact power selection ergonomic soft grip forward reverse rotation led job light trigger switch with full speed mode variable speed control by trigger specifications battery voltage: 40v battery type: makita xgt lithium ion blows per minute max : 0-4,000ipm blows per minute hi : 0-3,400ipm blows per minute med : 0-2,600ipm blows per minute lo : 0-1,800ipm driving shank: 1 2 square drive c-ring high tensile bolt: m10-m16 max fastening torque: 350nm noise k factor: 3db a noise sound power: 110db a noise sound pressure: 99db a nut busting torque 630nm standard bolt: m10-m20 vibration fastening bolt: 16.5M sec vibration k factor: 1.5M sec net weight: 1.9-2.2Kg contents tw004g 40v max xgt cordless 1 2 brushless drive impact wrench belt clip bl4025 40v max...