Hammer drill series bosch pbh power 750 watt gear 1 speed tool holder sds plus weight 3 kg idle speed max 1 450 rpm blow count max 4 000 countsmin drill diameter in concrete 26 mm drill diameter in steel 13 mm drill diameter in wood 30 mm special features speed pre selection rightleft rotation impact stop power supply mains operation impact force 28 joule operating voltage 230 v number of gears 1