How to calibrate a Torque Screwdriver?

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Introduction

Calibrating a torque screwdriver can be a straightforward process, but it requires attention to detail and a focus on the accuracy of your work.  The decision to calibrate a torque screwdriver – CORRECTLY – can improve not only your work process but also the quality of your final work.

For more information on screwdrivers, read our, How Many Types of Screwdrivers Are There? article.

DIY vs. Professional Calibration

When considering calibration, you have two options to pursue: DIY or professional services.

DIY Calibration:

To properly calibrate and insure the proper settings for the maximum effectiveness of your torque screwdriver, follow these steps.

• Gather Supplies: You’ll need a torque tester, a calibration fixture, and the torque screwdriver you want to calibrate.
• Set Up: Secure the torque tester and attach the torque screwdriver to the calibration fixture.
• Apply Torque: Slowly apply torque according to the manufacturer’s specifications. We recommend  testing several times to make sure you acheived the manufacturers specs.
• Adjust:If the torque reading is off, adjust the screwdriver according to the manufacturer’s instructions until it reads accurately.  Test, Test, Test!
• Re-Test: Repeat the process to ensure consistency.  Also, if you are new to the calibration process, it doesn’t hurt to practise a few times to make sure you understand how to properly calibrate the screwdriver and to ensure you have completed the process correctly.

The Pros and Cons of DIY Torque Screwdriver calibration

• Pros: Cost effective and convenient. Can be done on your own time and as needed as often as required.
• Cons: Requires proper equipment and knowledge. There’s a risk of incorrect calibration if not done correctly. Without the proper measurement tools you may not know if your torque screwdriver calibration was completed to the manufacturer’s specs.

Professional Calibration

• Pros: Ensures accuracy and reliability. Professionals have the necessary tools and expertise as well as the experience to make sure the job is completed accurately.
• Cons: A professional torque screwdriver calibration can be more expensive and time-consuming than DIY. In addition, you are on the technician’s time table for completing the working, potentially requiring you to delay your project.

The choice between DIY or Professional Torque Screwdriver calibration depends on your comfort level with completing the calibration, budget and the timeframe you need to complete the calibration. The other consideration-is there a professional calibration service in your area? If you have to ship the screwdriver off or travel a significant distance it may be more cost effective to do it yourself.

Preventing Calibration Issues

Prevention is typically more budget friendly and efficient to calibrate your Torque Screwdriver before problems happen. Here are some tips to prevent calibration issues:

• Regular Maintenance:Clean and store your torque screwdriver in a protective case, where it will not get damaged.
• Follow Usage Guidelines:Always use the tool within the manufacturers specified torque range. Using the Torque Screwdriver on a heavy duty job it was not designed for will damage the screwdriver, potentially beyond repair.
• Periodic Checks: Regularly check the tool’s accuracy, especially before important projects, requiring precise work.

Conclusion

Torque screwdrivers are essential tools for any DIY home repair enthusiast, but maintaining their accuracy through regular calibration is crucial. Whether you choose to calibrate your tool yourself or opt for professional services, understanding the importance of Torque Screwdriver Calibration process will help you achieve quality and timely results and extend the life of your tool.

By staying informed and proactive, you can ensure that your torque screwdriver remains a reliable asset in your DIY toolkit.  We have a great blog post on, How screwdrivers are used? if you want more basic information on screwdrivers and their uses.

Links to Expert Sources

For further reading and expert advice, check out the following resources:

Mountz Torque: “How to Calibrate a Preset Torque Screwdriver or Wrench”
Wera Tools : “Calibration and Service of Wera Torque Tools”

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