The game-changer: torque wrench as a breaker bar – here’s how

When it comes to loosening stubborn bolts and nuts, mechanics often rely on the brute force of breaker bars. But what if you could use a more precise and controlled tool for this task? Enter the torque wrench. This versatile tool is primarily designed for tightening fasteners to a specific torque, but can it also be used as a makeshift breaker bar? In this blog post, we’ll explore the pros and cons of using a torque wrench as a breaker bar and provide guidance on when it’s appropriate to do so.

Understanding the Differences

Before delving into the interchangeability of these tools, it’s crucial to understand their key differences. Breaker bars are designed to generate high torque with a long lever arm, making them ideal for breaking loose seized fasteners. Torque wrenches, on the other hand, focus on precision by providing controlled tightening torque to prevent overtightening or undertightening.

Pros of Using a Torque Wrench as a Breaker Bar

• Higher Precision: Torque wrenches allow for more precise control over the force applied, reducing the risk of damaging fasteners or surrounding components.
• Reduced Risk of Stripping: By using a torque wrench, you can avoid applying excessive force, which can lead to stripped threads or bolt heads.
• Versatility: A torque wrench can serve multiple purposes, making it a more versatile tool in your toolbox.

Cons of Using a Torque Wrench as a Breaker Bar

• Limited Torque Capacity: Torque wrenches typically have a lower torque capacity than dedicated breaker bars, which may not be sufficient for loosening extremely seized fasteners.
• Potential Damage: Using a torque wrench as a breaker bar can put stress on its internal components, potentially damaging the tool.
• Safety Concerns: If a torque wrench is used improperly or beyond its intended purpose, it could break or cause injury.

When to Use a Torque Wrench as a Breaker Bar

While it’s generally not recommended to use a torque wrench as a primary breaker bar, there are specific situations where it can be a suitable option:

• Lightly Seized Fasteners: For lightly seized fasteners, a torque wrench with a high torque setting can provide sufficient force to loosen them without causing damage.
• Limited Space: In tight spaces where a traditional breaker bar cannot be used, a torque wrench with a shorter lever arm can be more practical.
• Precision Required: When removing fasteners that require a specific torque to loosen, a torque wrench can ensure the correct force is applied.

Important Safety Precautions

If you decide to use a torque wrench as a breaker bar, it’s essential to take the following safety precautions:

• Inspect the Torque Wrench: Ensure the torque wrench is in good working condition and calibrated to the appropriate torque setting.
• Use a Long Lever Arm: Extend the torque wrench’s handle using a cheater bar or extension to increase the leverage and reduce the risk of damaging the tool.
• Apply Force Gradually: Apply force to the torque wrench slowly and steadily to avoid sudden impacts or overtightening.
• Wear Protective Gear: Wear safety glasses and gloves to protect yourself from potential hazards.

Takeaways: The Verdict

While torque wrenches can be a versatile tool, using them as a substitute for breaker bars should be done with caution. For heavily seized fasteners or situations where high torque is required, it’s best to use a dedicated breaker bar. However, for lightly seized fasteners or when precision is essential, a torque wrench can be a suitable alternative. By understanding the pros, cons, and safety precautions, you can make an informed decision about using a torque wrench as a breaker bar.

Answers to Your Questions

Q: Can I use any torque wrench as a breaker bar?
A: No, only torque wrenches with a high torque capacity and a sturdy construction should be used for this purpose.

Q: How do I extend the lever arm of a torque wrench?
A: You can use a cheater bar or an extension to increase the leverage and reduce the force required to loosen fasteners.

Q: Is it safe to use a torque wrench as a breaker bar regularly?
A: It’s not recommended to use a torque wrench as a primary breaker bar, as it can put stress on the tool and potentially damage it.