The Wera Tools Kraftform Turbo features a part time universal gear integrated in the handle to increase the working speed. The construction allows for four times the screwdriving speed without electricity, the company says. If required, the turbo function can be activated by simply pressing a button. Turning it off is recommended for loosening or for fine adjustment and final tightening of the screw with a high torque. The robust steel design is maintenance-free and ensures a long product life. The Kraftform Turbo can be used with conventional 1/4" bits due to its Rapidaptor bit holder, an interchangeable blade system.