Hammer drill series bosch pbh power 550 watt gear 1 speed tool holder sds plus weight 22 kg idle speed max 2 300 rpm blow count max 5 800 countsmin drill diameter in concrete 20 mm drill diameter in steel 13 mm drill diameter in wood 30 mm special features rotation stop rightleft rotation soft handle impact stop power supply mains operation impact force 17 joule operating voltage 230 v included in delivery depth stop auxiliary handle ca