Demolition Hammer Bosch GSH 11 E Professional is a powerful corded demolition hammer designed for heavy-duty concrete breaking, chiselling and demolition applications. It is suitable for demanding construction, renovation and masonry work. Technical Specifications: 1, 500 W power input, 16.8 J impact energy, 900–1, 890 BPM impact rate, SDS-max tool holder, and approximately 10.1 kg weight.