TEKTON 24340 Torque Wrench Review: 1/2-Inch Click Wrench for Brake Jobs

Published: October 18, 2026 | Last updated: October 18, 2026

TL;DR

• The TEKTON 24340 is a 1/2-inch drive click torque wrench that covers 25 to 250 ft-lb, which suits lug nuts and caliper bolts on most cars and light trucks (TEKTON, 2026).
• TEKTON ships it pre-calibrated to plus or minus 4% accuracy in the clockwise direction (TEKTON, 2026).
• It is 25 inches long, weighs about 5.4 lb and has an all-steel body with no plastic parts (L&M Supply, 2026).
• Store it at its lowest setting of 25 ft-lb to keep it accurate, and never use it to loosen bolts.
• For home brake jobs, it is one of the best-rated torque wrenches in its class, with a 4.6-star average from more than 4,600 Amazon ratings (Desertcart, 2026).

Disclosure: As an Amazon Associate, Brakes Hub earns from qualifying purchases. This never changes our verdicts.

How we reviewed this product: we studied TEKTON's specifications, retailer listings, the calibration standard it is tested to, and owner feedback. We did not run our own calibration tests.

What Is the TEKTON 24340 Torque Wrench?

The TEKTON 24340 is a 1/2-inch drive click-type torque wrench with a range of 25 to 250 ft-lb (33.9 to 338.9 Nm). It tightens a bolt until it reaches a set force, then clicks so you know to stop (TEKTON, 2026).

A torque wrench matters on a brake job because wheel bolts and caliper bolts have exact tightness specifications. Too loose and parts can work free. Too tight and you can stretch studs or distort the rotor.

TEKTON is a US tool brand, and the 24340 is made in Taiwan (L&M Supply, 2026). It is one of the most popular torque wrenches for home mechanics.

How a Click Torque Wrench Works

A click torque wrench uses a spring inside the handle that holds a small pivot in place until the set torque is reached. At that point the pivot breaks over, which you hear and feel as a click.

You set the target by turning the handle until the scale shows the number you want. The spring is then compressed to match that force.

A good comparison is a car seat belt that locks when you pull too hard. Below the set force, the wrench acts like a normal ratchet. At the set force, it signals you to stop.

TEKTON 24340 Specifications at a Glance

The TEKTON 24340 covers the torque range most passenger car brake work needs. The table lists the published specifications.

Sources: TEKTON (2026); L&M Supply (2026); Michigan Motorsports (2026).

Why Correct Torque Matters on a Brake Job

Correct torque keeps wheels and brake parts secure and stops the rotor from being clamped unevenly. Uneven wheel bolt torque is a common cause of rotor runout and a pulsing brake pedal.

When an impact gun hammers wheel nuts on, some nuts end up much tighter than others. The rotor hat is squeezed unevenly between the wheel and the hub, and over time the rotor wears thick and thin spots.

Caliper bracket bolts are just as important. Many are tightened to well over 70 ft-lb, and some carry threadlocker, so check your service manual for the exact figure.

How to Use the TEKTON 24340 Step by Step

To use the TEKTON 24340, set the target value, tighten clockwise with a smooth pull on the handle grip and stop at the first click. Follow these steps.

1. Look up the torque value in your owner's manual or service manual. Many cars use 80 to 100 ft-lb for wheel nuts, but always check yours.
2. Unlock the handle and turn it until the main scale and the fine scale together show your value. Lock it again.
3. Snug all wheel nuts by hand or with a normal ratchet first, in a star pattern.
4. Fit the socket and pull the handle smoothly, holding the grip near its center mark. Do not jerk the wrench.
5. Stop the moment you hear or feel the click. Pulling past the click over-tightens the bolt.
6. Go around the wheel in a star pattern a second time to confirm every nut clicks at the same value.
7. Turn the handle back to 25 ft-lb before storing the wrench in its case.

How to Keep the TEKTON 24340 Accurate

Keep the TEKTON 24340 accurate by storing it at 25 ft-lb, never using it to loosen bolts and avoiding drops. TEKTON states that storing it at its lowest setting helps maintain calibration (TEKTON, 2026).

• Use a breaker bar to loosen tight bolts, because the click mechanism is not designed for that load.
• Keep it in its case, away from dirt and moisture.
• Have it checked by a calibration service every year or so if you use it often.
• Avoid using extensions at an angle, because they can change the torque delivered to the bolt.

Pros and Cons of the TEKTON 24340

The TEKTON 24340's main strength is reliable, easy-to-read torque control for most brake and suspension jobs, and its main weakness is that the click can be hard to hear in a noisy garage.

Pros

• The 25 to 250 ft-lb range covers wheel nuts and most suspension bolts.
• The all-steel body has no plastic parts to wear out.
• The 25-inch length gives plenty of leverage for high torque values.
• It ships pre-calibrated and comes with a storage case and conversion chart.

Cons

• It only measures torque clockwise, so it does not suit left-hand threads.
• Owners report that the click is easy to miss in a loud workshop (Desertcart, 2026).
• The newton-meter scale is harder to set exactly, because the wrench is designed around whole ft-lb values (Desertcart, 2026).
• At 25 inches and over 5 lb, it is bulky for tight engine bays.

Common Problems With Click Torque Wrenches and How to Fix Them

Most torque wrench problems come from incorrect setting, poor storage or pulling past the click. The table lists the usual causes and fixes.

TEKTON 24340 vs a Split-Beam Torque Wrench

The TEKTON 24340 is a micrometer-style click wrench, while split-beam wrenches use a different mechanism that does not need to be wound back after use. For a home mechanic, the TEKTON is the simpler and more common choice.

Split-beam wrenches, such as the Precision Instruments range, suit busy shops that change settings all day. If you torque wheels a few times a year, the TEKTON 24340 gives you the accuracy you need.

Frequently Asked Questions About the TEKTON 24340

Is the TEKTON 24340 accurate enough for lug nuts?

Yes. It is calibrated to plus or minus 4% (TEKTON, 2026), which is a common accuracy grade for automotive click wrenches. At 100 ft-lb, that means within about 4 ft-lb either way.

Can I use the TEKTON 24340 to loosen bolts?

No. Use a breaker bar to loosen bolts. Loosening with a click wrench can damage the mechanism and affect accuracy.

What torque range do I need for brake work?

Most car wheel nuts need roughly 80 to 100 ft-lb, and caliper bracket bolts often need 60 to 130 ft-lb. A 25 to 250 ft-lb wrench such as the TEKTON 24340 covers both, but always check your vehicle's specification.

Why should I store a torque wrench at its lowest setting?

Leaving the spring compressed for long periods can change its strength. TEKTON advises storing the 24340 at 25 ft-lb to help keep it accurate (TEKTON, 2026).

Does the TEKTON 24340 work counterclockwise?

The ratchet turns both ways, but the wrench only measures torque clockwise (TEKTON, 2026). It is not suitable for torquing left-hand threads.

How often should a torque wrench be calibrated?

A common guide is once a year or after about 5,000 cycles, whichever comes first. Have it checked sooner if you drop it.

Summary: Is the TEKTON 24340 Worth Buying?

• The TEKTON 24340 covers the torque range most car brake and wheel jobs need.
• It is pre-calibrated to plus or minus 4% and built entirely from steel.
• Store it at 25 ft-lb and never use it to loosen bolts.
• Pair it with a breaker bar and a good socket set for a complete wheel and brake toolkit.

See the rest of the tools you need in our DIY brake job tools checklist.

Check the TEKTON 24340 on Amazon →

Safety note: brakes are safety parts. If you are not sure how to do the job, have a qualified mechanic do it.