Reversible Preset Torque Wrenches Secure Tools supplies Reversible Preset Torque Wrenches. Reversible preset torque wrenches can be set to apply a specific torque (force) to a fastener (such as a nut or bolt) so that the fastener is not damaged by overtorquing or loosens over time due to undertorquing. The wrench is attached to the desired size socket and placed over the fastener to tighten iT