Front-right angle view of Tekton case electronic torque wrench. Item #TRQ81122
Back angle view of Tekton case electronic torque wrench. Item #TRQ81122
Side view of Tekton case electronic torque wrench. Item #TRQ81122
Top view of Tekton case electronic torque wrench. Item #TRQ81122
Second side view of Tekton case electronic torque wrench. Item #TRQ81122
Closeup view of Tekton case electronic torque wrench. Item #TRQ81122
Closeup view of Tekton case electronic torque wrench. Item #TRQ81122
Person holding Tekton case electronic torque wrench. Item #TRQ81122
Laid out contents of Tekton case electronic torque wrench. Item #TRQ81122
Laid out contents of Tekton case micrometer torque wrench. Item #TRQ51402
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Item #TRQ81122

90-Tooth Flex Head Dual-Direction Electronic Torque Wrench

3/8 IN
10 - 100 ft-lb
•

Drive Size

3/8 Inch Drive
$350
1/2 Inch Drive
$395
$350.00
Add to Cart
Drive Size

3/8 in.

Tooth Count / Swing Arc

90-Tooth / 4º

Head Style

15° Flex

Torque Range

10 - 100 ft-lb

Torque Calibration Test Points

10, 60, 100 ft-lb

Unit Scale

in-lb, ft-lb, Nm, kg-m

Minimum Increment

1

Angle Range

5° - 360º

Angle Calibration Test Points

45°, 90°, 135°, 180º

Measurement Modes

Torque, Angle, Torque + Angle

Measuring Direction

Clockwise, Counterclockwise

Torque Accuracy

Within ±2% CW/CCW

Angle Accuracy

Within ±1% CW/CCW

Standards

(meets or exceeds)

ISO 6789-1:2017
ASME B107.300-2021

Feedback

LCD, Lights, Sounds, Vibrations

Custom Presets

10 Slots

History Records

Last 50 Peak Measurements

Length Offset

Up to ±15 in. / 381 mm

Cycle Counters

Basic, Preset Repetitions, Total

Calibration Reminder

Date and/or Cycles

Language

English

Batteries

3x AA 1.5 V (not included)

Effective Length

15.9 in.

Overall Length

20.0 in.

Weight

2.71 lb.

Country of Origin

Taiwan

Other Included Items

Download Product Manual

Need to recertify your torque wrench?
We offer a recertification service for Tekton electronic torque wrenches. Learn more about our recertification service.

DetailsSpecifications

Details

Simple Controls and Straightforward Operation

  • Fast to power-on, select a mode, and set your target
  • Large, clearly-labeled buttons
  • Backlit LCD screen with bold fonts and clear contrast
  • Real-time sensory feedback from sequential lights, beep patterns, and handle vibration
  • Dedicated button for quickly selecting saved presets
  • Simple navigation menus with quick escape button

Three Measurement Modes

An electronic torque wrench screen in torque mode

Torque

Torque Mode measures the resistance to rotation as you tighten the fastener. Toggle between ft-lb, in-lb, Nm, and kg-m. Use when tightening to a defined torque specification.
An electronic torque wrench screen in angle mode

Angle

Angle Mode measures degrees of rotation. Use when the specification prescribes turning a tightened fastener an additional amount to achieve the final clamping force.
An electronic torque wrench screen in torque + angle mode

Torque + Angle

Torque + Angle Mode combines the settings from the Torque and Angle Mode screens and allows you to do both operations in one step without stopping to change modes.
An electronic torque wrench being used with the screen facing the camera.

Lights, Sounds, and Vibration Feedback

In addition to the LCD screen, the torque wrench also provides real-time sensory feedback. Lights change from yellow to green, beeps change to a continuous tone, and the handle vibrates when you hit your target value.
Graphic showing sounds, lights, and vibration from the handle of an electronic torque wrench.
Sound and vibration can be turned off, but lights are always enabled.
Graphic showing the first sweep of the torque wrench is 45º, then ratchet back, then a second sweep of 45º equals a total of 90º.

Accumulate Angle in Multiple Sweeps

You don't need to complete an angle in one single sweep. An onboard gyroscope allows the ratcheting action to accumulate the total angle in multiple steps.
A torque wrench on a crowfoot wrench

Easy Conversions for Length Offset

Using an off-axis tool such as a crowfoot wrench or torque adapter can change the effective length of the torque wrench. By entering a length offset, the torque wrench will calculate the necessary torque conversion.

You can set a positive or negative offset, up to 15 in. or 381 mm. The offset can be used in all three measurement modes.


Graphic showing no length added, length added, and length subtracted.
Graphic pointing out the repetition counter and selected preset on an electronic torque wrench screen

10 Customizable Presets with Repetition Counters

You can save up to 10 presets and assign them to ordered slots. Each preset stores your measurement mode, target value, and unit. Optionally, you can set a number of repetitions (up to 99) to count each measurement in a series of fasteners.

Additional Features

An electronic torque wrench screen showing a history record

Saved History for the Last 50 Measurements

A history record gets saved each time a peak measurement meets or exceeds your target value. The long-term memory will save the last 50 records, and all records can be cleared anytime.
The buttons on an electronic torque wrench, with the UNIT button circled

Shortcut to Recall the Last Peak Measurement

You can press and hold the UNIT button to view the last peak measurement. This is the same measurement as the most recent record in the HISTORY menu, but you don't need to navigate through the menus to find it.
An electronic torque wrench screen showing the calibration reminder menu

Set a Future Calibration Reminder

You can have the torque wrench remind you to recalibrate by a certain date and/or cycle count to maintain its original accuracy.
An electronic torque wrench screen showing the over-torque history

Over-Torque Warnings and History

If the peak measurement exceeds 110% of the wrench's maximum torque setting, then there will be on-screen warnings, along with sounds and lights to alert you. Every instance of over-torque will be counted and the highest value will be saved for reference.
An electronic torque wrench screen showing an auto-shutoff time of 10 minutes

Power-Saving Auto-Shutoff Timer

An auto-shutoff feature preserves battery life, and the timer can be set to 2, 5, 10, 30, 60, or 120 minutes.
An electronic torque wrench screen showing a cycle count of 188

Total Cycle Counter

A single cycle is counted whenever a target torque or angle value is reached. The total cycle count is available in the Information sub-menu as a reference.
Graphic showing ±2% accuracy for torque and ±1% accuracy for angle clockwise or counterclockwise

Accurate Within ±2% for Torque and ±1% for Angle

The actual calibration accuracy will be stated on the certificate for your wrench. The maximum allowable deviation from the target will be within ±2% for torque and ±1% for angle, and it’s often on the lower end of the tolerance.
Graphic showing setting the wrench to 80 ft-lb has a maximum deviation of ±1.6 ft-lb for torque and setting the wrench to 90º has a maximum deviation of ±0.9º.

Full-Range Torque Calibration Using the ISO Standard

Chart comparing torque calibration ranges: Tekton (ISO 6789-1:2017) is calibrated from 10–100 ft-lb, shown as a solid red line. Competitor (ASME B107.300-2010) lists 5–100 ft-lb but is uncalibrated from 5–20 ft-lb (dotted line) and calibrated only from 20–100 ft-lb (solid black line).
StandardISO
6789-1:2017		ASME
B107.300-2021
Set Points
(Percentages are of maximum torque value)		Lowest Value
60%
100%		20%
60%
100%
Accuracy±4% CW
±4% CCW		±4% CW
±6% CCW
Readings Per Set Point53
Key points of difference highlighted in red

This torque wrench is calibrated to the ISO standard for torque. The ASME standard is more commonly used, but the ISO requirements are stricter in a few key ways:

  • ISO requires the lowest marked value on the scale to be tested. ASME starts testing at 20% of the range, which is often higher than the lowest marked value.
  • ISO requires clockwise and counterclockwise tests to match, whereas ASME allows counterclockwise to be less precise.
  • ISO requires 5 readings for each set point, whereas ASME only requires 3 readings for each.
Because this torque wrench is calibrated to the ISO standard, it also meets and exceeds the ASME standard.

Serialized Certificate of Calibration

A calibration certificate for a Tekton electronic torque wrench.

A. Serial number matching the engraving on the torque wrench

B. Torque tested at three set points (10, 60, 100 ft-lb)

C. Five torque tests for each set point in both directions

D. Test equipment and conditions

E. Quick summary of calibration tests

F. Angle tested in both directions at four set points (45º, 90º, 135º, 180º)

G. One angle test for each set point in both directions

H. Standards

90-Tooth Ratchet

The single half-moon pawl maintains 10 teeth engaged with the gear at all times, so it won't skip under stress.

4º Swing Arc Reduces Length of Travel

Having more teeth in the ratchet (B) results in less travel at the end of the wrench handle (D) between each tooth click.

3/8 Inch Drive (10 - 100 ft-lb)
#TRQ81122

Tekton 3/8 Inch Drive Electronic Torque Wrench Illustration – Key to Table Comparing Swing Arcs
A. Overall LengthB. Tooth CountC. Swing ArcD. Length of Travel
20.0 in.90 (Tekton)4°1.40 in.
804.5°1.57 in.
725°1.74 in.
458°2.79 in.
3610°3.49 in.
2415°5.22 in.
The flex head lets the center of the handle reach a height of up to 3.8 inches from the drive tang

15-Degree Flex Head

The flex head offers the clearance to work around nearby obstructions. Some accuracy is lost when the handle is not in the straight position, so this feature should only be used when needed.
Graphic showing ±3% accuracy clockwise or counterclockwise

Coarse Knurling for a Secure Grip

A deep, sharp-cut diamond pattern on the surface of the handle creates a coarse texture that won’t slip in your hand. Grip the handle so your middle finger rests on the groove in the knurling. This is where the pressure should be concentrated for best accuracy.
Graphic showing a hand centered behind the handle

Design and Components

Cutaway view of a Tekton electronic torque wrench

Full-Featured Case

The case provides safe transport for the torque wrench and protects it from drops. The case is made of high-density polyethylene (HDPE) and the latches are polypropylene (PP). Each item in the case has its own place and is held securely.
A Tekton electronic torque wrench in its case.

A. Product manual and certificate of calibration

B. Removable metal hinge pins

C. 3/8 inch to 1/4 inch drive reducer included

D. Hard polypropylene latches

E. Long-term storage slots for 3x AA Batteries

With the lid off, the case and wrench are 2.0 inches tall.

Removable Lid for Shallow Drawers

Graphic pointing out the tracks on the top and bottom of the case.

Top and Bottom Tracks Allow Stacking

Hand holding a red torque wrench case.

Textured Surfaces Provide a Firm Grip

Compare Torque Wrenches

Electronic

A Tekton electronic torque wrench

A multi-unit, dual-direction electronic torque wrench that can measure torque and angle. The large LCD screen provides real-time feedback along with lights, sounds, and vibration. It stores 10 custom presets and the last 50 history records. It’s our most capable and accurate torque wrench.

Accuracy: Within ±2% Torque, ±1% Angle
Directions: Clockwise, Counterclockwise
Tooth Count: 90 (4º Swing Arc)
Head Style: 15º Flex
Drive Sizes: 3/8, 1/2 in.
Feedback: LCD, Lights, Sounds, Vibration
Units: in-lb, ft-lb, Nm, kg-m


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Micrometer

A Tekton micrometer torque wrench

A single-unit, dual-direction mechanical torque wrench with a high-resolution micrometer scale that’s easy to read and lock in place but requires being set to the minimum value when storing. It's an affordable combination of accuracy and mechanical reliability.

Accuracy: Within ±3%
Directions: Clockwise, Counterclockwise
Tooth Count: 90 (4º Swing Arc)
Head Style: Fixed
Drive Sizes: 1/4, 3/8, 1/2 in.
Feedback: Mechanical Click
Units: in-lb, ft-lb, Nm


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Split Beam

A Tekton split beam torque wrench

A single unit, single-direction mechanical torque wrench that is fast and easy to set and can be stored at any setting because it uses a durable deflecting beam rather than a spring to measure torque. It has a clear, consistent click. It's ideal for users who measure in the usual clockwise tightening direction and make frequent setting changes.

Accuracy: Within ±4%
Directions: Clockwise
Tooth Count: 72 (5º Swing Arc)
Head Style: 10º Flex
Drive Sizes: 3/8, 1/2 in.
Feedback: Mechanical Click
Units: ft-lb, Nm


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Specifications

3/8 Inch Drive 90-Tooth Flex Head Dual-Direction Electronic Torque Wrench (10 - 100 ft-lb)

Specs for 3/8 Inch Drive 90-Tooth Flex Head Dual-Direction Electronic Torque Wrench (10 - 100 ft-lb)
Country of Origin
Taiwan
Item Weight
2.71 lb.