Technical data The most important data No-load speed* 0-2,800 rpm Weight excl. battery* 1.02 kg Torque, max.* 160 Nm Impact rate 0-3,600 bpm Battery voltage 18.0 V Tool holder 1/4'' Hex Uni Screw diameter Screw diameter M 6 – M 14 Total vibration values (Tightening screws and nuts of maximum permitted size) Vibration emission value ah 9.5 m/s² Uncertainty K 1.5 m/s² The A-rated noise level of the power tool is typically as follows: Sound pressure level 95.5 dB(A); Sound power level 106.5 dB(A). Uncertainty K= 3 dB. GDR 18V-160 Professional: Further information Product Highlights The GDR 18V-160 Professional is the cordless, ergonomic entry-level impact driver in Bosch´s 18 V category. Convenient handling for precise working results is ensured by its ergonomic design. The impact driver's high torque makes the tool powerful and easy to use even in heavy applications. Furthermore, its combination of high torque and high-speed capabilities supports fast working progress, making this tool efficient. This tool is intended for screws with diameters M 6 – M 14. It is compatible with all Bosch Professional 18 V batteries and chargers (Professional 18V System). Equipment & Application The GDR 18V-160 Professional also features bit holder, Li-ion, and variable speed.