No, lubricants should generally not be applied to a torque wrench before storage. Applying lubricants can attract dust and debris, potentially contaminating the wrench’s internal mechanisms. This contamination can lead to inaccurate torque readings and damage over time.

Storing Your Torque Wrench: What You Need to Know

Proper storage of your torque wrench is crucial for maintaining its accuracy and extending its lifespan. While it might seem intuitive to lubricate tools before putting them away, this isn’t the case for torque wrenches. Understanding the right way to store this precision instrument ensures it performs reliably when you need it most.

Why Lubrication Isn’t Recommended for Torque Wrench Storage

Torque wrenches are sophisticated tools with delicate internal mechanisms. These often involve springs, gears, and ratchets that are calibrated for precise measurements.

• Contamination Risk: Lubricants can act like a magnet for dust, dirt, and other airborne particles. When you store your wrench, especially in a workshop environment, these contaminants can easily get into the mechanism.
• Compromised Accuracy: Once inside, this debris can interfere with the internal workings. This interference can lead to inaccurate torque readings, which is dangerous if you’re relying on it for critical tasks.
• Potential for Damage: Over time, accumulated debris mixed with lubricant can cause wear and tear on the internal components, potentially leading to costly repairs or even rendering the wrench useless.

Best Practices for Storing Your Torque Wrench

Instead of lubrication, focus on keeping your torque wrench clean and protected. Following these simple steps will help preserve its accuracy and functionality.

1. Cleanliness is Key

Before storing your torque wrench, ensure it’s clean.

• Wipe down the exterior with a clean, dry cloth to remove any surface dirt or grease.
• If there’s stubborn grime, use a slightly damp cloth, but ensure the wrench is thoroughly dried afterward.
• Pay special attention to the drive square and any adjustment areas.

2. Set the Torque to its Lowest Setting

This is a critical step often overlooked.

• Most torque wrenches have a spring-loaded mechanism. Storing them at a high torque setting can put continuous stress on the spring.
• Over time, this prolonged stress can cause the spring to lose its calibration, leading to inaccurate readings.
• Always dial your torque wrench down to its lowest setting before putting it away. This relieves tension on the internal spring.

3. Protect It from the Elements

Environmental factors can also impact your torque wrench.

• Store your wrench in a dry environment. Humidity can lead to rust on metal components.
• Avoid extreme temperature fluctuations, as these can affect the calibration.
• A protective case or a clean toolbox drawer is ideal.

4. Regular Calibration Checks

Even with proper storage, torque wrenches require periodic calibration.

• Manufacturers typically recommend calibration every 12 months or after a certain number of cycles.
• This ensures the wrench continues to meet its specified accuracy.
• Consider using a click type torque wrench or a beam type torque wrench and understanding their specific storage needs.

What About Lubricating the Drive Square?

Some users wonder if a tiny amount of lubricant on the drive square, where sockets attach, is beneficial. Generally, this is also unnecessary and can attract unwanted grime. The drive square is designed for a snug fit, and a clean, dry connection is best for accurate torque application. If you find a socket is difficult to attach or remove, it might indicate a need for cleaning rather than lubrication.

When Might Lubrication Be Considered?

The only time you might consider lubrication is if you are performing torque wrench maintenance yourself and are specifically instructed by the manufacturer to lubricate certain internal components during a rebuild or deep cleaning. This is a specialized task and not part of routine storage. For the vast majority of users, keeping the wrench clean and dry is the priority.

People Also Ask

### How do I clean a torque wrench?

To clean a torque wrench, use a soft, dry cloth to wipe down the exterior. For more stubborn dirt, a slightly damp cloth can be used, but ensure the wrench is completely dry afterward. Avoid using harsh solvents or immersing the wrench in water, as this can damage the internal mechanisms.

### What is the best way to store a torque wrench?

The best way to store a torque wrench is in a clean, dry environment, ideally in its protective case. Crucially, always set the torque wrench to its lowest setting before storage to relieve tension on the internal spring and maintain accuracy.

### Can a torque wrench go bad if not used?

Yes, a torque wrench can lose its accuracy over time even if not used, due to the aging of internal springs and components. Regular calibration, typically annually, is recommended to ensure it remains accurate, regardless of usage frequency.

### Should I lubricate the socket drive on a torque wrench?

No, you should not lubricate the socket drive on a torque wrench. A clean, dry connection between the socket and the wrench’s drive square ensures better grip and more accurate torque application. Lubrication can attract dirt and debris, potentially causing issues.

By following these guidelines, you can ensure your precision measuring tool remains accurate and reliable for all your tightening needs. Remember, a well-maintained torque wrench is a safe torque wrench.

For more information on tool maintenance, you might find our articles on proper socket wrench storage and how to maintain impact drivers useful.