How To Use A Torque Wrench

The Comprehensive Guide on How To Use A Torque Wrench

Every tool aficionado and DIY enthusiast knows the importance of using the right tool for the job. Among these tools, a torque wrench stands out as a critical instrument, ensuring that bolts are tightened to the perfect degree. But how do you harness its full potential? Well, let’s journey together and explore “How To Use A Torque Wrench?”.

History of the Torque Wrench

Before we dive into the practicalities, it’s essential to understand the roots of the tool. The torque wrench isn’t a recent invention; its existence dates back several decades.

The Early Beginnings

The torque wrench came into the limelight during the early 20th century. Industries realized the need for precision, especially in automotive and aviation sectors, where bolt tension was critical.

Modern Day Variants

With technological advancements, today’s torque wrenches are far more sophisticated. From the rudimentary beam-type to the advanced electronic versions, the evolution is nothing short of impressive.

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Different Types of Torque Wrenches

Different Types of Torque Wrenches

You’d be surprised by the variety available. Knowing the types can help you decide which one fits your needs best.

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Beam-Type Torque Wrench

This one’s a classic, using a beam and pointer to indicate torque levels.

Click-Type Torque Wrench

It is popular among professionals and “clicks” when the desired torque is reached.

Digital/Electronic Torque Wrench

The tech-savvy version, providing digital readings and often boasting additional features.

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Why Using a Torque Wrench Correctly is Crucial

Why Using a Torque Wrench Correctly is Crucial

You might wonder, “Why all the fuss about a wrench?” The answer lies in the implications of getting it wrong.

Ensuring Safety

Over-torquing can cause bolts to snap, while under-torquing can lead to them coming loose – both risky scenarios.

Prolonging Lifespan

Using a torque wrench correctly can extend the life of your appliances, machinery, or vehicles by ensuring optimal assembly.

Step-by-Step: How To Use A Torque Wrench?

Ah, the main event! Here’s your detailed guide.

Calibration is Key

Before using, ensure your torque wrench is calibrated. This ensures accuracy in readings.

Setting the Desired Torque

Adjust the handle or settings, depending on your wrench type, to the required torque level.

Grip and Position

Hold the wrench mid-handle and ensure it’s at a 90° angle to the bolt or nut.

Turn Until You Get a Signal

For click-types, wait for the click. For digital versions, watch the reading.

Always Return to Lowest Setting

After use, always return your wrench to its lowest torque setting.

Maintenance of Your Torque Wrench

A tool performs best when cared for. Here’s how to keep your torque wrench in top shape.

Regular Calibration

Routine checks ensure the accuracy of readings.

Clean After Use

Dirt and grease can affect performance. A clean cloth does the trick.

Store Safely

Keep in its case or a dry place to prevent damage.

Common Mistakes to Avoid

Every tool has its quirks, and avoiding these common pitfalls will make your torque wrench experience smoother.


Remember, more isn’t always better. Stick to specifications.

Using as a Breaker Bar

A torque wrench isn’t designed to loosen bolts. For that, use a breaker bar.


How often should I calibrate my torque wrench?

Regular use calls for calibration every 5000 cycles or annually, whichever comes first.

Can I use my torque wrench for loosening bolts?

It’s not recommended as it can affect calibration.

Is it okay to drop a torque wrench?

Avoid it! Drops can impair accuracy.

What’s the difference between torque and force?

While force is a straightforward push or pull, torque refers to the twisting force that causes rotation.

Do digital torque wrenches need batteries?

Yes, most require batteries, but they often last a long time.

Why does my click-type wrench not click?

It might be set too low or it’s time for recalibration.


Understanding “How To Use A Torque Wrench?” can seem daunting initially, but with the right knowledge and practice, it becomes second nature. Whether you’re a seasoned mechanic or a home DIYer, the torque wrench is invaluable. Treat it right, and it’ll serve you well, ensuring precision in every turn.

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