What's the difference between a breaker bar and a torque wrench?
Public Comments
- A breaker bar is just a long bar used for leverage to get a bolt off. A torque wrench is however used for measuring torque when tightening a nut or bolt. It has the little dial that moves kinda like an old tire pressure gauge.
- djmixmodes is right.
- The first answer was complete, brilliant and well thought out.
- A breaker bar is usually used to remove "frozen" nuts/bolts on an engine or machinery that can't be removed with a conventional wrench.A torque wrench applies a pre-setted pressure "torque"(torsion)on the bolt/nut and is measured in ft/lb..in/lb or newton/meters. The amount of pressure (torque) is determined by the product manufacturer.
- The breaker bar is a simple bar with a flex head to fit a socket. It is for brute force application. The torque wrench is more like a ratchet with handle that can be turn to get a specific torque. It allows you to tighten a bolt at a specific torque. The breaker bar is good to lose the bolt, while the torque wrench is for tighten the bolt (at specification mentioned in manufacturer's repair manual).
- the torque wrench has an indiacater that shows stress. the breaker bar looks about the same but has no indicater
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