This Bosch GBH 2-26 is a professional 3-mode rotary hammer drill, ideal for drilling, hammer drilling, and chiselling. It features an 830W motor with variable speed control, forward/reverse settings, and a lock-on button for fatigue-free work. The Vario-Lock system allows easy adjustment of chisel positions, and an overload clutch protects the user and the machine. Supplied with an auxiliary handle, depth stop, machine cloth, and a carry case. Specifications include: rated power input of 830W, impact rate of 0-4,000 bpm, rated speed of 0-900 rpm. Drilling diameter in concrete is 4-26mm (optimum 8-16mm) and 68mm with core cutters. Maximum drilling diameter in steel is 13mm and in wood is 30mm. Dimensions are 377mm length, 83mm width, and 210mm height.