Drill a small diameter hole above and below each hinge nearest to the outside edge of the toolcase or toolbox. Some plastic toolboxes have more than two hinges, but if this modification is made to those hinges nearest to the hinges farthest left and farthest right, that will be sufficient.
On many toolboxes and toolcases there is room between the hinge and part of the box to pass a wire. This makes for a tighter reinforcement of the hinge and means only one hole must be drilled. See step 7.
- Needlenose pliers and wire cutter
- Drill and small bit
- Thin steel wire about 22 gauge