Apply more torque than your wrench can deliver on its own. Internal gears multiply the amount of force (or torque) that can be applied to the fastener. Use a multiplier with a torque wrench to ensure you do not exceed the maximum input torque. Place the bracing bar or bracing foot against a stationary object to keep the multiplier in place. Accuracy is rated on the torque output.

To determine torque output, use the Torque Multiplication factor. For example, if the torque multiplication factor is 3.3X and you apply 100 ft.-lbs. of torque, the torque output would be 330 ft.-lbs.

Multipliers with backlash protection prevent the wrench from swinging back when torqued.

Multipliers that also include a bracing foot let you work in tight spots too. But keep in mind, using a bracing foot requires more effort to apply the same force compared to using a bracing bar because it can't distribute the force as much.