Cordless hammer drill battery management replaceable battery number of batteries with 1 battery series milwaukee m12 gear 1 speed tool holder sds plus weight 19 kg idle speed max 900 rpm blow count max 6 200 countsmin drill diameter in concrete 13 mm drill diameter in steel 10 mm drill diameter in wood 13 mm special features impact stop rightleft rotation overload protection power supply battery operation battery voltage 12 v battery capacit