The bosch gsb 21 2 re professional impact drill is the most powerful tool in its class for the toughest applications the bosch high performance motor 1100w with high torque for heavy duty applications is ideal for working with large diameters whether it be drilling working with core cutters or holesaws screwdriving or stirring there is a sturdy metal housing for a long tool life and anti rotation mechanical overload clutch for a high level of work safety even in the toughest of applicat