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TEKTON Torque Wrench Review: Which Model to Buy

TEKTON is the torque wrench brand a lot of home mechanics end up with, and its current range gives them good reason. The micrometer click wrenches TEKTON launched in 2025 are rated ±3% in both directions, tested from the bottom of the scale to the top, and shipped with a serialized certificate. Here is how the range breaks down, what changed from the older models, and which TEKTON to buy for each job.

SK Kutubuddin
By SK Kutubuddin · Updated September 23, 2026
A former aviation professional with over two decades of hands-on expertise in aero-engine maintenance, inspection, and tool management.
  • 6 picks compared
  • Specs checked against maker data
  • No paid placements
Five unbranded torque wrenches of different types and sizes with their cases
Representative, unbranded tools. Our exact picks are listed below.

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The short version
  1. 1TEKTON's current micrometer wrenches are rated ±3% clockwise and counter-clockwise, tested at the lowest marked value, 60% and 100% of the scale, and come with a certificate of the results.
  2. 2Most people should start with the 3/8-inch TRQ51402 (10–100 ft-lb); add the 1/2-inch TRQ52402 for wheels, or buy all three drives as the TRQ95901 set.
  3. 3TEKTON's older 24335 and 24340 wrenches were rated ±4% clockwise only and came without a certificate. Check the model number on any used or discounted TEKTON.
Our picks

What we recommend

Compare the key specs side by side, then read the full notes on each pick below.

  1. Range
    10–100ft-lb
    Type
    Click(micrometer)
    Accuracy
    ±3%CW and CCW
  2. Range
    40–200ft-lb
    Type
    Click(micrometer)
    Accuracy
    ±3%CW and CCW
  3. Range
    20–200in-lb
    Type
    Click(micrometer)
    Accuracy
    ±3%CW and CCW
  4. Range
    10–100ft-lb
    Type
    Electronic, torque + angle
    Accuracy
    ±2% torque, ±1% angle(CW and CCW)
  5. Range
    20–100 and 50–250 ft-lb
    Type
    2 split-beam click wrenches
    Accuracy
    ±4%CW
  6. Range
    20–200 in-lb; 10–100 and 40–200 ft-lb
    Type
    3 click (micrometer) wrenches
    Accuracy
    ±3% CW and CCW, each
Best overall
TEKTON TRQ51402 3/8" Micrometer Torque Wrench
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 2 of 7
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 3 of 7
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 4 of 7
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 5 of 7
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 6 of 7
TEKTON TRQ51402 3/8" Micrometer Torque Wrench, photo 7 of 7
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TEKTON

TEKTON TRQ51402 3/8" Micrometer Torque Wrench

A first torque wrench for engine-bay and general work

Range
10–100 ft-lb
Type
Click (micrometer)
Accuracy
±3% CW and CCW
Pros
  • Rated ±3% in both directions, tested at 10, 60 and 100 ft-lb
  • Serialized certificate with the test results
  • 90-tooth ratchet with a 4° swing arc
  • Case and a 3/8"-to-1/4" reducer included
Cons
  • 10 ft-lb minimum: small covers need the 1/4-inch model
  • Wind it down to the lowest setting after use
Our verdict

The TEKTON to buy if you buy one. A 3/8-inch drive covers most engine-bay work, and this is the size where TEKTON's full-range ISO calibration matters most: the ±3% rating covers 10 ft-lb as well as 100, which is where valve covers and brackets live.

It's a plain click wrench — no readout, no angle mode — and it starts at 10 ft-lb, so smaller covers want the 1/4-inch wrench below.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • 10–100 ft-lb in 0.5 ft-lb steps, on a single-unit scale: there's no N·m marking, and TEKTON sells the metric range as a separate wrench.
  • Rated ±3% clockwise and counter-clockwise, to ISO 6789-1:2017 and ASME B107.300-2021. The serialized certificate lists your wrench's own results at 10, 60 and 100 ft-lb, the test equipment and the conditions.
  • Pull the locking collar down and hold it, turn the handle to the value on the main and micrometer scales, then release the collar and twist it to confirm it's locked.
  • Set it to its lowest value before switching the ratchet direction, and store it at the lowest value printed on the handle body. Don't turn the handle below it.
  • Don't use it to break fasteners loose or put an extension on the handle. Crowfoot and other offset adapters change the effective length, so the setting has to be corrected.
  • The manual says to test it after any drop. TEKTON's warranty has "no time limits, no receipts", and its paid recertification service covers this model: $50 to recertify, $75 to recalibrate and recertify, within the United States.
  • 90-tooth fixed head with a 4° swing arc. 15.6 in long, 1.8 lb, made in Taiwan.
  • In the box: a case, the manual, the certificate and a 3/8-to-1/4-inch drive reducer.

What others found

It's a new model. Home Depot shows a handful of ratings but no readable review text, and we found no independent test, so this rests on TEKTON's published data and manual. Reviews you may find for the older 24330 or 24335 are a different generation of wrench.

Sources: TEKTON TRQ51402 product page · TEKTON micrometer torque wrench manual (PDF) · TEKTON recertification service · TEKTON TRQ51402 Amazon listing (specifications)
Best for wheels
TEKTON TRQ52402 1/2" Micrometer Torque Wrench
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 2 of 7
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 3 of 7
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 4 of 7
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 5 of 7
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 6 of 7
TEKTON TRQ52402 1/2" Micrometer Torque Wrench, photo 7 of 7
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TEKTON

TEKTON TRQ52402 1/2" Micrometer Torque Wrench

Lug nuts, suspension and chassis bolts

Range
40–200 ft-lb
Type
Click (micrometer)
Accuracy
±3% CW and CCW
Pros
  • Rated ±3% in both directions, tested at 40, 120 and 200 ft-lb
  • Serialized certificate with the test results
  • 90-tooth ratchet with a 4° swing arc
  • Case and a 1/2"-to-3/8" reducer included
Cons
  • 40 ft-lb minimum
  • Big truck fasteners may need the 40–300 ft-lb TRQ52403
Our verdict

The TEKTON for wheels. Its 40–200 ft-lb scale puts common lug-nut values in the middle of the range, and it carries the same ±3% two-direction rating and serialized certificate as the rest of the micrometer line.

Its 40 ft-lb floor is the highest of the micrometer wrenches here, so brake and suspension hardware below that belongs on the 3/8-inch wrench.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • Pull the locking collar down and hold it, turn the handle to the value on the main and micrometer scales (1 ft-lb marks), then release the collar and twist it to confirm it's locked.
  • Rated ±3% clockwise and counter-clockwise. TEKTON tests it at 40, 120 and 200 ft-lb, and the serialized certificate lists your wrench's results, the test equipment and the conditions.
  • Set it to its lowest value before switching the ratchet direction, and store it at the lowest marked value. Don't turn the handle below it.
  • Don't use it to break fasteners loose or put an extension on the handle. Crowfoot and other offset adapters change the effective length, so the setting has to be corrected.
  • In the box: a case, the manual, the certificate and a 1/2-to-3/8-inch drive reducer. It's 19.1 in long, weighs 2.77 lb and is made in Taiwan.
  • The manual says to test it after any drop. TEKTON's paid recertification service covers this model.

What others found

It's a recent model: we found no independent test and no owner reviews we could read, so this verdict rests on TEKTON's published specifications and manual.

Sources: TEKTON TRQ52402 product page · TEKTON micrometer torque wrench manual (PDF) · TEKTON recertification service · TEKTON TRQ52402 Amazon listing (specifications)
Best inch-pound
TEKTON TRQ50402 1/4" Micrometer Torque Wrench
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 2 of 7
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 3 of 7
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 4 of 7
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 5 of 7
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 6 of 7
TEKTON TRQ50402 1/4" Micrometer Torque Wrench, photo 7 of 7
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TEKTON

TEKTON TRQ50402 1/4" Micrometer Torque Wrench

Small fasteners in aluminum, trim, motorcycles and small engines

Range
20–200 in-lb
Type
Click (micrometer)
Accuracy
±3% CW and CCW
Pros
  • Rated ±3% in both directions across the full scale
  • Serialized certificate with the test results
  • 90-tooth ratchet with a 4° swing arc
Cons
  • Tops out at 200 in-lb, about 16.7 ft-lb
  • Wind it down to the lowest setting after use
Our verdict

The inch-pound TEKTON, and the one that reaches lowest: 20–200 in-lb in 1 in-lb steps, for the small covers, brackets and calipers a foot-pound wrench can't set accurately.

Like the rest of the line it's calibrated at its lowest marked value, so the ±3% rating covers 20 in-lb. Below that, a torque screwdriver is the finer tool.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • 20–200 in-lb in 1 in-lb steps, on a single-unit scale: there's no N·m marking, and TEKTON sells the metric range as a separate wrench.
  • Rated ±3% clockwise and counter-clockwise, to ISO 6789-1:2017 and ASME B107.300-2021. The serialized certificate lists your wrench's own results at 20, 120 and 200 in-lb, the test equipment and the conditions.
  • Pull the locking collar down and hold it, turn the handle to the value on the main and micrometer scales, then release the collar and twist it to confirm it's locked.
  • Set it to its lowest value before switching the ratchet direction, and store it at the lowest value printed on the handle body. Don't turn the handle below it.
  • Don't use it to break fasteners loose or put an extension on the handle. Crowfoot and other offset adapters change the effective length, so the setting has to be corrected.
  • The manual says to test it after any drop. TEKTON's warranty has "no time limits, no receipts", and its paid recertification service covers this model: $50 to recertify, $75 to recalibrate and recertify, within the United States.
  • 90-tooth fixed head with a 4° swing arc. 10.1 in long, 0.73 lb, made in Taiwan.
  • In the box: a case, the manual, the certificate, a 1/4-inch hex bit holder and a 1/4-to-3/8-inch drive adapter, which steps up to larger sockets rather than down.

What others found

It's a new model. Home Depot shows a handful of ratings but no readable review text, and we found no independent test, so this rests on TEKTON's published data and manual. Reviews you may find for the older 24320 are a different generation of wrench.

Sources: TEKTON TRQ50402 product page · TEKTON micrometer torque wrench manual (PDF) · TEKTON recertification service · TEKTON TRQ50402 Amazon listing (specifications)
Best digital
TEKTON TRQ81122 3/8" Electronic Torque Wrench
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 2 of 7
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 3 of 7
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 4 of 7
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 5 of 7
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 6 of 7
TEKTON TRQ81122 3/8" Electronic Torque Wrench, photo 7 of 7
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TEKTON

TEKTON TRQ81122 3/8" Electronic Torque Wrench

Torque-plus-angle procedures and jobs with many different specs

Range
10–100 ft-lb
Type
Electronic, torque + angle
Accuracy
±2% torque, ±1% angle (CW and CCW)
Pros
  • Torque, angle, or torque-plus-angle modes
  • Tested at 10, 60 and 100 ft-lb to ISO 6789-1:2017; serialized certificate
  • Lights, beeps and handle vibration as you approach and reach the target
  • 90-tooth head with a 15° flex and a 4° swing arc
Cons
  • Needs 3 AA batteries (not included)
  • A click wrench is simpler, and cheaper, if you never use angle specs
Our verdict

TEKTON's electronic wrench, and the tightest-rated tool in its range here: ±2% on torque and ±1% on angle, in both directions, with a serialized certificate that records your own wrench's results at three torque values and four angles.

It measures torque, angle, or torque plus angle, on a 15° flex head, and signals with lights, beeps and a vibrating handle. It needs three AA batteries, which aren't included.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • 10–100 ft-lb in 1 ft-lb steps, with three modes: torque only, angle only, or torque plus angle.
  • Rated ±2% on torque and ±1% on angle, clockwise and counter-clockwise, to ISO 6789-1:2017 and ASME B107.300-2021. The certificate tests torque at 10, 60 and 100 ft-lb and angle at 45°, 90°, 135° and 180°. TEKTON states the angle figure at a reference of 90° at 30° per second.
  • 90-tooth head with a 4° swing arc and a 15° flex. 20.0 in long, an effective length of 15.9 in, 2.71 lb, made in Taiwan.
  • Backlit screen with large buttons, and feedback from lights, beep patterns and handle vibration as you approach and reach the target. Auto shut-off is user-set to 2, 5, 10, 30, 60 or 120 minutes.
  • Runs on three AA batteries, not included. In the box: a case, the manual, the serialized certificate and a 3/8-to-1/4-inch reducer.
  • There's no winding down to do: the manual says to store it in its case and take the batteries out for long storage. Don't use it to break fasteners loose or add an extension to the handle, and verify its accuracy after a drop. It's covered by TEKTON's no-time-limit warranty and its paid recertification service.

What others found

It's a new model. We found no owner reviews we could read and no independent test, so everything here comes from TEKTON's published data and manual.

Sources: TEKTON TRQ81122 product page · TEKTON electronic torque wrench manual (PDF) · TEKTON recertification service · TEKTON TRQ81122 Amazon listing (specifications)
Best split-beam
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 2 of 7
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 3 of 7
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 4 of 7
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 5 of 7
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 6 of 7
TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set, photo 7 of 7
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TEKTON

TEKTON TRQ96901 3/8" and 1/2" Split-Beam Torque Wrench Set

Changing settings often without winding the wrench down afterwards

Range
20–100 and 50–250 ft-lb
Type
2 split-beam click wrenches
Accuracy
±4% CW
Pros
  • TEKTON's new split-beam line: TRQ61122 (3/8") and TRQ62122 (1/2")
  • No spring under load, so they can be stored at any setting, per TEKTON
  • Serialized certificate for each; 90-tooth heads with a 4° swing arc and 10° flex
Cons
  • Rated ±4% clockwise only, against ±3% both ways on the micrometer wrenches
  • Sold as a pair: worth it if you use both sizes
Our verdict

TEKTON's answer to the wrench people forget to wind down. Two split-beams, 3/8-inch and 1/2-inch, that TEKTON says can be stored at any setting, each with its own case and serialized certificate.

They're rated ±4% clockwise only, where TEKTON's micrometer wrenches are ±3% in both directions. Pick these if you change settings often; pick the click wrenches if you want the tighter rating.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • TRQ61122: 3/8-inch drive, 20–100 ft-lb in 2 ft-lb steps, tested at 20, 60 and 100 ft-lb. 18.8 in long, an effective length of 15.6 in, 2.1 lb.
  • TRQ62122: 1/2-inch drive, 50–250 ft-lb in 5 ft-lb steps, tested at 50, 150 and 250 ft-lb. 22.8 in long, an effective length of 19.2 in, 3.8 lb.
  • Both are rated ±4% clockwise, to ISO 6789-1:2017 and ASME B107.300-2021, and calibrated across the full range rather than from 20% of scale. Each comes with a serialized certificate listing its own results.
  • Both have a 90-tooth head with a 4° swing arc and a 10° flex. Each wrench's own product page lists a case, a serialized certificate and a drive reducer with it: 3/8-to-1/4-inch on the smaller wrench, 1/2-to-3/8-inch on the larger. The set page itself doesn't itemise them.
  • TEKTON's split-beam manual says the wrench can be stored at any torque setting because there's no internal tension when it's at rest, so there's no winding down to do.
  • Don't use them to break fasteners loose or add an extension to the handle, and verify accuracy after a drop. Both are covered by TEKTON's no-time-limit warranty and are on the list for its paid recertification service. Made in Taiwan.

What others found

This is TEKTON's new 90-tooth split-beam line and we found no owner reviews or independent test of it. Forum discussion you may find of TEKTON split-beams is about the older 72-tooth wrenches.

Best set
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set, photo 2 of 6
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set, photo 3 of 6
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set, photo 4 of 6
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set, photo 5 of 6
TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set, photo 6 of 6
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TEKTON

TEKTON TRQ95901 1/4", 3/8" and 1/2" Torque Wrench Set

Anyone who works across small, engine-bay and wheel fasteners

Range
20–200 in-lb; 10–100 and 40–200 ft-lb
Type
3 click (micrometer) wrenches
Accuracy
±3% CW and CCW, each
Pros
  • Three dual-direction micrometer wrenches, one per drive size
  • Each has its own case and serialized certificate
  • Two drive reducers, a step-up adapter and a magnetic bit holder included
Cons
  • Worth it only if you use all three ranges
  • Three coil-spring wrenches to wind down after use
Our verdict

All three micrometer wrenches in one box: the 1/4-inch TRQ50402 (20–200 in-lb), the 3/8-inch TRQ51402 (10–100 ft-lb) and the 1/2-inch TRQ52402 (40–200 ft-lb), each rated ±3% in both directions with its own case and serialized certificate.

It covers small covers, engine bay and wheels in one purchase, and adds adapters and a magnetic bit holder. Three coil-spring wrenches also means three to wind down after every job.

Based on the maker's specifications and manual and the published reviews linked below, not on our own test of this unit.

Setup, everyday use and what others found

Setup & use · per the maker

  • Three dual-direction micrometer wrenches: 20–200 in-lb in 1 in-lb steps, 10–100 ft-lb in 0.5 ft-lb steps, and 40–200 ft-lb in 1 ft-lb steps.
  • Each is rated ±3% clockwise and counter-clockwise, to ISO 6789-1:2017 and ASME B107.300-2021, and calibrated at its lowest marked value rather than from 20% of scale, so the rating covers the whole scale.
  • Each wrench has its own case and its own serialized certificate recording its results, test equipment and conditions.
  • Also included: a 1/4-inch magnetic hex bit holder socket, a 1/4-to-3/8-inch adapter, a 3/8-to-1/4-inch reducer and a 1/2-to-3/8-inch reducer.
  • All three have 90-tooth fixed heads with a 4° swing arc. Made in Taiwan.
  • Store each at the lowest value printed on its handle, and set that lowest value before switching the ratchet direction. Don't break fasteners loose with them or add handle extensions, and verify accuracy after a drop. All three are covered by TEKTON's no-time-limit warranty and its paid recertification service.

What others found

These are new models and we found no owner reviews we could read and no independent test of the set, so this rests on TEKTON's published data and manual.

Sources: TEKTON TRQ95901 set page · TEKTON micrometer torque wrench manual (PDF) · TEKTON recertification service · TEKTON TRQ95901 Amazon listing (specifications)
SK Kutubuddin
SK Kutubuddin
Founder & lead reviewer
  • Aeronautics diploma
  • Engineering degree
  • BAMEC (DGCA)
  • QC-trained
  • ~2 yrs tool management
Expertise

Why you should trust us

SK Kutubuddin spent over two decades maintaining and inspecting aircraft, including almost two years in a dedicated tool bay, where every torque wrench carried a calibration label and was checked for serviceability when it came back. That habit of reading the paperwork before trusting a tool is how this review approaches TEKTON: by the tolerance each wrench is rated to, where on the scale the rating applies, and what its certificate records.

We compared TEKTON's current range model by model and checked every range, accuracy figure, standard and included item against TEKTON's product pages and manuals and the live Amazon listing, per our how-we-test method. TEKTON does not sponsor this page. It is a buying guide built on verified specs and long experience with the category, not a lab test.

The right fit

Who this is for

This page is for anyone weighing up a TEKTON torque wrench: first-time buyers choosing a drive size, owners of an older TEKTON wondering whether the new line is worth it, and anyone deciding between TEKTON's click, split-beam and electronic models.

If you want a wrench made in the USA, CDI, a Snap-on Industrial brand, makes serialized click wrenches there; they appear on our 3/8-inch and 1/2-inch pages.

A good fit for
  • Home mechanics buying a first torque wrench
  • Owners of an older 24335 or 24340 deciding whether to upgrade
  • Anyone who wants a certificate with test results in the box
  • Buyers choosing between click, split-beam and electronic
Our method

How we picked

We grouped TEKTON's torque wrenches by job and chose the model in each group that does that job most directly, then verified every figure against TEKTON's own pages and manuals and the live listing.

  1. 01

    One model per job

    TEKTON sells several wrenches that differ only in range. We picked the one whose range centers on each common job and named the alternatives where they matter, such as the 40–300 ft-lb TRQ52403 for trucks.

  2. 02

    Accuracy, direction and where it applies

    We recorded each wrench's rated tolerance, whether it covers counter-clockwise use, and the test points on its certificate. TEKTON tests its current micrometer and electronic wrenches at the lowest marked value, so their rating covers the full scale.

  3. 03

    Paperwork and service

    Every pick ships with a serialized certificate, and every wrench here is on TEKTON's list of models eligible for its paid recertification service, which matters for a wrench you plan to keep for years.

  4. 04

    A type for every way of working

    We covered TEKTON's micrometer click wrenches in all three drives, its split-beam and electronic models, and the three-wrench set.

Micrometer torque wrench handle beside a folded calibration certificate
A serialized certificate records how your own wrench tested.
Buying advice

What to know before you buy

Is TEKTON a good torque wrench brand?

For most home and many professional users, yes. The current micrometer wrenches are rated ±3% in both directions and calibrated to ISO 6789-1:2017, which TEKTON says also meets or exceeds ASME B107.300-2021, and each one ships with a serialized certificate that records its test results. That is a tighter rating on paper than many better-known click wrenches, several of which are rated only from 20% of the scale upward.

TEKTON's torque wrenches are made in Taiwan. Its warranty has no time limit and needs no receipt, and it offers a paid recertification service for its current models, so a TEKTON wrench can be checked and adjusted rather than replaced when it drifts.

TEKTON Torque Wrench Review: Which Model to Buy

Which TEKTON torque wrench should you buy?

Match the drive and range to the fasteners you tighten most:

  • Engine-bay and general work: the 3/8-inch TRQ51402, 10–100 ft-lb.
  • Wheels, suspension and chassis: the 1/2-inch TRQ52402, 40–200 ft-lb, or the TRQ52403, 40–300 ft-lb, for trucks.
  • Small fasteners: the 1/4-inch TRQ50402, 20–200 in-lb.
  • Torque-plus-angle procedures: the electronic TRQ81122, or the 1/2-inch TRQ82123 (30–300 ft-lb).
  • Frequent setting changes without winding down: TEKTON's new split-beam line, the 3/8-inch TRQ61122 and 1/2-inch TRQ62122, sold together as the TRQ96901 set.

Old TEKTON vs new TEKTON

TEKTON's earlier micrometer wrenches, such as the 24335 and 24340, were rated ±4%, calibrated to the 2010 edition of ASME B107.300 and tested at 20%, 60% and 100% of the scale. They drove in both directions but measured torque only clockwise, and TEKTON says they did not include a certificate. Both are listed as no longer available.

The current TRQ line, released in 2025, is rated ±3% in both directions, calibrated to ISO 6789-1:2017 (which TEKTON says also meets or exceeds ASME B107.300-2021), tested from the lowest marked value upward, and certified individually. If you already own an older TEKTON that checks out well, keep using it; if you are buying, get the current model. TEKTON renewed its split-beam wrenches in 2026 too: it lists the older TRQ62103 as a version without a certificate and the TRQ62203 as no longer available.

Click, split-beam or electronic?

A micrometer click wrench is the simplest choice: set the value on the handle and pull until it clicks. TEKTON's split-beam wrench also clicks, but it has no preloaded spring, so it can be stored at any setting; the trade-off is a ±4% clockwise-only rating. The electronic wrench reads the torque live, alerts you as you approach the target and adds an angle mode. Our beam vs click vs digital guide explains each type in more depth.

What ±3% means in practice

On TEKTON's current micrometer wrenches, ±3% is the worst case allowed anywhere on the scale, in either direction; the certificate shows what your own wrench measured. At a 60 ft-lb setting, ±3% allows 58.2 to 61.8 ft-lb.

Many click wrenches are rated only from 20% of their scale upward, which leaves the bottom fifth unrated. TEKTON tests at the lowest marked value, so a 10–100 ft-lb TRQ51402 is rated at 10 ft-lb as well, which helps with low engine-bay values.

Looking after a TEKTON torque wrench

Store the micrometer wrenches at their lowest marked setting, as TEKTON's manual says, and set that lowest value before you switch the ratchet direction. Never use a torque wrench to break a fastener loose.

Check it at least once a year or every 5,000 cycles, the ISO 6789 benchmark, and straight away after a drop. Our calibration guide shows how to check a wrench at home, and TEKTON's recertification service can adjust it if it is out.

Questions

Frequently asked questions

Are TEKTON torque wrenches accurate?

The current micrometer wrenches are rated ±3% in both directions across their full scale, and the electronic models ±2% for torque. Each comes with a serialized certificate that records the readings from its own calibration test.

Where are TEKTON torque wrenches made?

In Taiwan, according to TEKTON's product pages and manuals.

Does TEKTON calibrate torque wrenches?

Yes. TEKTON runs a paid recertification service for its current torque wrenches, which tests the wrench and adjusts it if it is out of specification.

What is TEKTON's warranty on torque wrenches?

TEKTON's warranty has no time limit and does not require a receipt. For calibration, use its paid recertification service.

Which TEKTON torque wrench is best for lug nuts?

The 1/2-inch TRQ52402 (40–200 ft-lb) suits most cars. For trucks with higher lug-nut values, the TRQ52403 goes to 300 ft-lb.

Do I need to set a TEKTON torque wrench to zero?

Not to zero. TEKTON's manual says to store its micrometer wrenches at the lowest marked setting. Its split-beam wrenches can be stored at any setting.

Is TEKTON as good as CDI?

On paper they are close. TEKTON's current micrometer wrenches are rated ±3% in both directions across the full scale; CDI's 3/8-inch 1002MFRMH is rated ±3% clockwise and ±4% counter-clockwise, but only from 20% of scale up. CDI's are made in the USA and TEKTON's in Taiwan, and both ship with a serialized certificate.

Can I use a TEKTON torque wrench counter-clockwise?

The current micrometer and electronic models are rated in both directions. TEKTON's split-beam wrenches are rated clockwise only.

How often should a TEKTON torque wrench be calibrated?

The usual benchmark is every 12 months or 5,000 cycles, from ISO 6789, and straight away after a drop or an overload.

SK Kutubuddin
Written by
SK Kutubuddin
A former aviation professional with over two decades of hands-on expertise in aero-engine maintenance, inspection, and tool management.
  • Aeronautics diploma
  • Engineering degree
  • BAMEC (DGCA)
  • QC-trained
  • ~2 yrs tool management

SK spent over two decades in aircraft maintenance, working hands-on with aero-engine systems and flight data recorder systems, borescope-inspecting turbine and compressor blades, and spending almost two years in a dedicated tool bay. He holds a diploma in mechanical engineering (aeronautics), an associate degree in science, an engineering degree and a Basic Aircraft Maintenance Engineer's Certificate (BAMEC) from DGCA, and has completed quality-control and aviation fuels & lubricants training. GaugeGrade applies the same inspection, torque and tool-management standards to the tools everyday mechanics, DIYers and trades actually buy.

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