Power grip with comfortable easy-grip Haptoprene® surface allows transmission of the required torque with no problems even with wet or oily hands. On reaching the set torque value, the screwdriver can be felt and heard to trigger and is then again immediately ready for use. The release torque is higher than the tightening torque (overload protection).
The desired torque can be set by stepless adjustment using a torque analyser (No. 654300 − 654460) and a 5 AF hexagon screwdriver (not supplied). When 20 or more of a size are ordered, they can be factory pre-set.
Tested to DIN EN ISO 6789.
The guaranteed measuring accuracy of the torque is achieved only once the torque range has been calibrated to DIN EN ISO 6789.