Wera has now engineered the 75 length of the adaptor to help cushion peak loads, by acting as a precision torsion spring. The spring curve is designed so that brief, lower torque peaks are transmitted directly from the bit to the torsion spring in the adaptor, where they are absorbed. Under higher, more intensive torque peaks, the adaptor "locks up" which activates the torsion zone of the bit itself. The patented quick-change mechanism provides a positive connection between the drive tool and the bit. At the same time, a slight movement of the retaining collar releases the lock and provides for very fast bit changes. This time saving improves the productivity of the operators and helps to reduce costs. In the past, the material and heat treatment set the boundries with regard to the service life of screwdriver bits. In 1989, with the "Torsion Bit", Wera the opened the door to innovative, new possibilities for maximizing the tool life. The new BiTorsion bit now goes one step further: By means of a specific tempering process, the hardness of the bits is reduced in the torsion zone. This softer zone absorbs energy and therefore dissipates peak loads from the tip, into the torsion zone. Diamond coated to prevent cam-out damage. (weight: 0.5kg)
Model: 103215
£22.91 
