Specification: As powerful as corded: up to 100 drilled holes (6 x 40 mm in concrete) with one battery charge, ideal for indoor use With a weight of only 2.9 kg, it is ideally suitable for overhead work Bosch Vibration Control for fatigue-free working Additional data Battery voltage:36.0 V Impact energy (according to EPTA 05/2016):1.8 J Impact rate at rated speed:0 – 4,850 bpm Rated speed:0 – 1,500 rpm Tool holder:SDS plus Drilling range Drilling dia. in concrete with hammer drill bits:4 – 18 mm Opt. app. range in concrete with hammer drill bits:4 mm Max. drilling diameter in metal:13 mm Max. drilling diameter in wood:30 mm Total vibration values (Hammer drilling in concrete) Vibration emission value ah:16 m/s² Uncertainty K:1.5 m/s² Noise/vibration information Sound pressure level:102 dB(A) Sound power level:91 dB(A) Uncertainty K:3 dB Hammer drilling in concrete Vibration emission value ah:16 m/s² Uncertainty K:1.5 m/s²