The Bosch GDS 18V-450 HC 18V Brushless 12 Sq. Impact Wrench delivers consistently impressive performance with a breakaway torque of up to 800Nm. With an impressive 450Nm tightening torque, the GDS 18V-450 HC wrench also includes a versatile three-speedtorque settings for more flexibility and control. The three speed, torque, impact rate options are Speed 0-100rpm 0-1500rpm 0-2300rpm Torque 0-250Nm 0-330Nm 0-450Nm Impact Rate 0-1900bpm 0-2500bpm 0-3300bpm Its two default modes on the user interface, metal boltnut A and wood screw B, ensure controlled application to prevent broken screwheads and the loss of metal bolts or nuts by slowing down or shutting off the impact wrench. Each mode can be adjusted conveniently to a specific application via the Bosch Toolbox App. The impact wrench is ideal for metal workshopslocksmiths, industrial assembly, framing, and vehicle maintenance using metal boltsnuts from M8-M18. The GDS 18V-450 HC Professional comes with tool status indicator, LED light, and belt clip for added convenience. At the heart of this tool is the brushless motor that allows you to use the Wrench efficiently. As part of the design, the tool utilizes every bit of battery power when you need, all while reducing the need for ongoing maintenance by reducing the amount of heat generated and working more efficiently. The technology in creating a brushless motor system allows for perfect symmetry between battery power and usage ensuring you get all the power you need, when you need it.