Features 2 operating modes: Rotary Hammer Mode for drilling concrete. Set the automatic “Turbo Power” switch on in the Hammer Only mode, and hitting power increases by 20% for fast, powerful chipping. Vario-Lock enables the operator to rotate and lock the chisel in 12 different positions to optimize working angle. Variable speed control dial for accurate bit starting and minimal breakout when through hole drilling. Service minder light indicates need for service 8 hours in advance of automatic predetermined tool shutdown. Padded, shock absorbing handles are comfortable to hold, improve grip and reduce operator fatigue. Heat shield over barrel for cooler gripping surface. Includes 360° auxiliary handle, depth gauge and carrying case. This tool replaces Bosch’s previous model 11235EVS.