DESCRIPTION: Robust brushless motor for durability. Intelligent brushless motor for efficiency, endurance, and compactness. Robust metal chuck and compact ergonomic design ideal for heavy-duty jobs. Professional 18V System works with Bosch batteries and chargers of the same voltage. ADDITIONAL DATA: Torque (soft/hard/max.):28/50/50 Nm. No-load speed (1st gear / 2nd gear):0 ? 460 / 0 ? 1,800 rpm. Weight excl. battery:1 kg. Battery type:Lithium-ion. Chuck capacity, min./max.:1.5 / 13 mm. Torque settings:20+1. DRILLING DIAMETER: Max. drilling diameter in aluminium:13 mm. Max. drilling diameter in steel:13 mm. Max. drilling diameter in wood:35 mm. SCREW DIAMETER: Max. screw diameter:10 mm. TOTAL VIBRATION VALUES (Drilling in metal): Vibration emission value ah:2.5 m/s?. Uncertainty K:1.5 m/s?. TOTAL VIBRATION VALUES (Screw driving): Vibration emission value ah:2.5 m/s?. Uncertainty K:1.5 m/s?. NOISE/VIBRATION INFORMATION: Sound pressure level:99 dB(A). Sound power level:88 dB(A). Uncertainty K:5 dB. Drilling in metal: Vibration emission value ah:2.5 m/s?. Uncertainty K:1.5 m/s?. Screw driving: Vibration emission value ah:2.5 m/s?. Uncertainty K:1.5 m/s?. The A-rated noise level of the power tool is typically as follows: Sound pressure level 99 dB(A); Sound power level 88 dB(A). Uncertainty K= 5 dB.