What To Know
- While a torque wrench can potentially be used to break loose fasteners, it is important to note that doing so can damage the torque wrench and compromise its accuracy.
- If a torque wrench is used as a breaker bar and subjected to excessive force, it can affect its calibration, leading to inaccurate torque readings in the future.
- If a breaker bar is not available and the fastener needs to be broken loose immediately, a torque wrench can be used as a temporary measure.
The question of whether a torque wrench can be used as a breaker bar has been a topic of debate among mechanics and DIY enthusiasts alike. Both tools are designed for specific purposes, but can a torque wrench withstand the rigors of breaking loose stubborn bolts and nuts? In this comprehensive guide, we will delve into the intricacies of this topic, exploring the potential risks, limitations, and proper usage of torque wrenches as breaker bars.
Understanding the Differences: Torque Wrench vs. Breaker Bar
- Torque Wrench:
A torque wrench is a precision tool designed to tighten or loosen fasteners with a specific and controlled amount of torque. Its primary function is to ensure accurate torque application, preventing overtightening or undertightening. Torque wrenches typically feature a calibrated scale, allowing users to set and apply a specific torque value.
- Breaker Bar:
A breaker bar is a heavy-duty tool designed to generate high levels of torque for breaking loose seized or rusted fasteners. It features a long, sturdy handle that provides leverage for applying maximum force. Breaker bars are not calibrated and are not intended for precise torque application.
Can You Use a Torque Wrench as a Breaker Bar?
The answer to this question is a conditional yes. While a torque wrench can potentially be used to break loose fasteners, it is important to note that doing so can damage the torque wrench and compromise its accuracy.
Risks of Using a Torque Wrench as a Breaker Bar:
- Damage to Torque Wrench:
Torque wrenches are designed to apply controlled torque, not to withstand excessive force. Using them as breaker bars can strain their internal mechanisms, resulting in permanent damage.
- Inaccurate Torque Readings:
If a torque wrench is used as a breaker bar and subjected to excessive force, it can affect its calibration, leading to inaccurate torque readings in the future.
- Safety Concerns:
Using a torque wrench as a breaker bar can be dangerous if the fastener suddenly breaks loose. The sudden release of force can cause the torque wrench to snap or recoil, potentially injuring the user.
When Can You Use a Torque Wrench as a Breaker Bar?
In certain scenarios, it may be necessary to use a torque wrench as a breaker bar, but only as a last resort. This should be done with extreme caution and only if the following conditions are met:
- Low Torque Requirements:
If the fastener requires relatively low torque to break loose, a torque wrench can be used cautiously. Avoid applying excessive force or using the torque wrench as a lever.
- No Other Options Available:
If a breaker bar is not available and the fastener needs to be broken loose immediately, a torque wrench can be used as a temporary measure.
- Proper Technique:
When using a torque wrench as a breaker bar, always use a short, slow motion. Avoid sudden or excessive force.
Proper Usage of Torque Wrenches for Breaking Loose Fasteners:
- Use the Correct Size:
Select a torque wrench that is appropriate for the size and torque requirements of the fastener.
- Set the Torque:
Set the torque wrench to the lowest possible torque setting that is sufficient to break loose the fastener.
- Short, Slow Motions:
Apply gradual, short motions to the torque wrench. Avoid sudden or excessive force.
- Listen for the Click:
Once the fastener starts to break loose, you will hear a click from the torque wrench. Stop applying force immediately.
Conclusion:
While torque wrenches can be used as breaker bars in certain limited situations, it is not recommended as a regular practice. The risks of damaging the torque wrench, compromising its accuracy, and causing safety concerns outweigh the potential benefits. Always use the appropriate tool for the job, and if a breaker bar is required, invest in a dedicated tool for the task.
FAQ:
Q: Can I use a 1/2-inch torque wrench as a breaker bar?
A: It is not recommended to use any torque wrench as a breaker bar, regardless of its size.
Q: What happens if I use a torque wrench as a breaker bar and it breaks?
A: A broken torque wrench can be dangerous and should be replaced immediately.
Q: Can I use a breaker bar to tighten bolts?
A: While breaker bars can be used to break loose fasteners, they are not intended for tightening bolts. Use a torque wrench for precise torque application when tightening fasteners.
Q: How can I avoid damaging my torque wrench?
A: Always use the correct size torque wrench, set the torque correctly, and avoid excessive force or sudden movements.
Q: What is the difference between a click-type torque wrench and a dial-type torque wrench?
A: Click-type torque wrenches produce a click when the desired torque is reached, while dial-type torque wrenches display the applied torque on a dial.
