Technical data: Rated power input : 750WNo-load speed : 0-3250 rpm Weight without scale : 1.8 kg Length : 268.0 mmWidth : 69.0 mm Height : 192.0 mm Impact rate at no-load speed : 0-48500 bpm Drilling Range : Drilling dia. in concrete : 16 mmDrilling dia. in wood : 25 mm Drilling dia. in steel : 12 mm