Cordless drill driver series bosch gsr battery voltage 12 v number of batteries without batteries type of battery li ion battery management replaceable battery gear 2 speed tool holder 14 inch internal hexagon idle speed max 1 300 rpm max drehmoment hart 30 nm max drehmoment weich 15 nm weight 06 kg integrated torch drill diameter in concrete 10 mm drill diameter in wood 30 mm chuck width 1 10 mm torque levels 20 1 included in delivery