slot 42 in the grip 16 through which the locking screw 40 passes allows movement of the clicker block 36 and clicker spring 34 along the length of the handle 14 as shown in fig5 the clicker 34 will make a noise when the main spring deflects a distance x 1 which represents a force f 1 on the main spring 26 f 1 in fig5 is generally the maximum force possible with a given main spring in a given location thus when the clicker spring 34 is closest to the head the maximum force must be used the minimum force f 1 for a given position of main spring 24 is set on the torque wrench by moving the clicker spring to a position closest to the main spring 26 fig6 in this position a relatively small movement of the grip 16 causes a deflection x 2 to activate the clicker 34 this occurs simply because of the geometry of the grip being pivoted at 24 the closer the clicker spring 34 is to pivot 24 the more the main spring 26 has to be compressed and the greater the force f has to be before the click is heard the positions of the clicker spring 34 would normally be calibrated between those shown in fig5 and 6 it is also anticipated that a coil or loop spring could be placed at the pivot 24 and work in a similar manner one end.