Cordless drill driver series bosch psr battery voltage 108 v number of batteries without batteries battery management internal battery gear 2 speed tool holder keyless idle speed max 1 100 rpm max drehmoment hart 22 nm weight 09 kg charge indicator drill diameter in steel 8 mm drill diameter in wood 20 mm charging time 60 min torque levels 10 1 special feature battery indicator included in delivery charger 2 batteries carry case