SPECIFICATIONS: -Contractor's Choice -1100 Watts (Gen 2) -17mm HEX Shank -Bosch -GSH 500 -Demolition Hammer Specification overview: Rated power input: 1,100W Impact energy: 7.8J (Gen 2) Impact rate at rated speed: 2900bpm (Gen 2) Weight without cable: 5.5kg Length: 450mm Width: 240mm Height: 110mm Toolholder: 17mm HEX Inclusions: 17mm HEX Pointed Chisel Carrying Case