by James Clark
Hemera Technologies / AbleStock.com / Getty Images
A wrench is an adjustable tool that replaces many wrenches. The open ends of a wrench can be opened or closed in increments to create different sizes for tightening or loosening nuts and bolts. The locking mechanism is an endless screw on the flat edge of the tool near the jaws. Under normal use, the gear should turn with just a push of your thumb, but if it gets stuck, use some remedies to unlock the wrench.
Try to unlock the wrench manually by turning the worm towards the handle. If the wrench is not locked, this will pull the jaws apart so the tool can be removed from a nut or bolt head and then readjusted for other work.
Spray a small blast of lubricant on the worm gear if the wrench is stuck, rusted, or hasn’t been used in a while. Wait a few minutes for the lubricant to penetrate the metal, then try turning the gear once more towards the handle to loosen the jaws.
Grasp the gear at the top and bottom with a pair of pliers. Slowly twist the pliers back and forth through the handles to loosen and unlock the wrench.
- Store tools in a secure toolbox or chest when not in use to keep tools clean, rust-free, and ready for next use.
- Resist the temptation to remove a stuck spanner from a bolt by tapping the handle of the wrench with a hammer or mallet. This could damage the key and bolt.
Articles will need
- Aerosol lubricant, such as WD-40