Product information , Bosch battery striking drilling machine GSB 18V-45 :, torque (soft/hard/max.): 21/45/-Nm, idle speed (1st gear/2nd gear): 0-500/0-1,900 min- 1, battery type: lithium ions, number of strikes: max. 27,000 bpm, battery voltage: 18 V, weight excl. Battery: 1.0 kg, torque levels: 20+2, screw Ø: max. 8 mm, drilling Ø: max. 35 mm, drilling Ø steel: max. 10 mm, drilling Ø masonry: max. 10 mm