Bosch GSH 11 VC Professional SDS Max Demolition Hammer with Vibration Control is the most powerful performer in Boschs SDS max corded demolition hammer range. Its extremely powerful motor enables the ultimate chiselling performance with an outstanding 23 J of impact energy. The demolition hammer is also built for durability, featuring exceptionally robust metal components. The GSH 11 VC Professional's additional features include a Lock-on switch, Constant Speed, Speed Selection and Vario-Lock. Perfect for vertical chiselling in concrete and stone. It is compatible with dust attachment GDE max Professional and GDE hex Professional. Specifications: Voltage: 110V. Input Power: 1,700W. No Load Speed: 900-1,670/min. Max Impact Energy: 23 Joules. Tool Holder: SDS Max. Weight.