Patent ID: 8479620

Claim:
A torque-setting device including: a handle including grooves defined in an internal face; a shank partially inserted in the handle; an axle operable for moving a pusher for pushing a spring against a strain gauge connected to the shank, wherein the axle includes a section rotationally but not movably located in the shank; a knob including teeth formed on an external face and an annular rib formed on an internal face, wherein the knob is movable but not rotational relative to the axle, wherein the knob is operable to rotate the axle relative to the pusher to move the pusher relative to the axle against the spring to set a value of torque, wherein the knob is movable between a position to insert the teeth in the grooves to avoid the rotation of the knob and a second position to locate the teeth out of the grooves to allow the rotation of the knob; a restraining element including an annular flange formed on an external face and an annular groove defined in the external face thereof, wherein the restraining element is connected to the axle, wherein the annular flange is in contact with the knob; and a C-clip including an internal edge located in the annular groove and an external edge located against the annular rib.