Cordless hammer drill number of batteries without batteries series bosch uneo gear 1 speed tool holder sds quick weight 14 kg idle speed max 900 rpm blow count max 5 000 countsmin drill diameter in concrete 10 mm drill diameter in steel 8 mm drill diameter in wood 10 mm special features impact stop electronic speed control power supply battery operation battery voltage 18 v charging time 60 min impact force 06 joule included in delivery w