Electric screwdriver drywall screwdriver series bosch gbm bosch professional power 600 watt tool holder keyless weight 17 kg idle speed max 2 600 rpm torque max 20 nm drill diameter in steel 10 mm drill diameter in wood 25 mm special feature rightleft rotation power supply mains operation max screw diameter 6 mm operating voltage 230 v included in delivery keyless chuck max bohrfutterspannweite 10 min bohrfutterspannweite 1