Manual Torque Driver 5-35NcmDSI Manual Torque Driver is made especially for prosthetics tightening. It can be used for any abutment screw with a hexagon connection of 1. 25mm. It has an adjustable torque knob feature with variable torque of 5 35Ncm. The driver is pre calibrated at the factory and does not require any modifications. It guarantees exact torque, giving you complete control over the procedure. It can be used even in the most hard to reach area in the oral cavity.