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Square Drive Torque Tool Testers
Check the accuracy of torque wrenches and screwdrivers—place your tool onto the tester with the included square drive connector and turn. The main pointer shows torque as it's measured; the memory pointer shows the maximum torque reached. Use these testers with hand tools only.
Note: For the most accurate performance, the maximum torque you apply should fall near the middle of the tester’s torque range.
For technical drawings and 3-D models, click on a part number.
Accuracy | Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Torque-Measuring Direction | Clockwise | Counterclockwise | Lg. | Wd. | Ht. | Material | Mounting Fasteners Included | No. of | Dia. | Each | |
With Calibration Certificate Traceable to NIST | ||||||||||||||
in.-lbs. | ||||||||||||||
| 1/4" | 6 to 30 in.-lbs. | 0.5 in.-lbs. | Clockwise and Counterclockwise | ±2% | ±2% | 8" | 4" | 2 1/4" | Steel | No | 4 | 1/4" | 0000000 | 0000000 |
| 1/4" | 15 to 75 in.-lbs. | 1 in.-lbs. | Clockwise and Counterclockwise | ±2% | ±2% | 8" | 4" | 2 1/4" | Steel | No | 4 | 1/4" | 0000000 | 000000 |
| 1/4" | 20 to 100 in.-lbs. | 2 in.-lbs. | Clockwise and Counterclockwise | ±2% | ±2% | 8" | 4" | 2 1/4" | Steel | No | 4 | 1/4" | 0000000 | 000000 |
High-Accuracy Torque Tool Testers
Accurate to within ±1%, these torque testers are often used to check the accuracy of torque wrenches and screwdrivers on assembly lines. They come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. To test, place your torque wrench or screwdriver onto the tester with the included square drive connection and turn. These testers display torque as it's measured and the maximum torque reached. For accuracy when testing click-style wrenches, they also show the first torque peak reached. They’re not for use with impact or pulse tools.
Note: For the most accurate readings, the maximum torque you're applying should fall near the middle of the tester's torque range.
Bench-top testers can be mounted to your work surface. Those with a gooseneck display can be bent until you can clearly see the test results. Mount these testers to your workbench with a mounting bracket (sold separately). Or, carry them where they’re needed using the included case.
Portable testers are lightweight and easy to move around your facility. Their touch-screen display makes it easier to navigate through different menus than testers with a digital-screen display. To view data in a CSV file, pop out the tester’s SD card and plug it into your computer. You can also transfer data by connecting the tester directly to your computer with the USB cord. To use these testers with nonimpact power tools, they include at least one socket screw adapter. These testers meet ISO 17025, so they’ve been checked in a laboratory that was evaluated for accuracy.
Accuracy | Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Torque-Measuring Direction | Clockwise | Counterclockwise | For Tool Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | No. of | Dia. | Batteries Included | Includes | Each | |
With Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | ||||||||||||||||
in.-lbs., ft.-lbs., Nm | ||||||||||||||||
| 1/4" | 5 to 50 in.-lbs. 0.4 to 4.17 ft.-lbs. 0.56 to 5.65 Nm | 0.01 in.-lbs. 0.01 ft.-lbs. 0.01 Nm | Clockwise and Counterclockwise | ±1% | ±1% | Hand Tools Only | 4 1/2" | 6" | 6" | No | 8 | 3/8" | Yes | Female Drive Adapter | 0000000 | 000000000 |
Accuracy | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Torque-Measuring Direction | Clockwise | Counterclockwise | For Tool Type | Ht. | Wd. | Dp. | Mounting Fasteners Included | No. of | Dia. | Includes | Each | |
With Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | |||||||||||||||
in.-oz., cNm | |||||||||||||||
| 1/4" | 10 to 100 in.-oz. 7 to 70.6 cNm | 1 in.-oz. 0.1 cNm | Clockwise and Counterclockwise | ±0.5% | ±0.5% | Hand Tools Only | 2 1/2" | 4 1/2" | 14 1/2" | No | 6 | 5/16" | Carrying Case, Female Drive Adapter | 0000000 | 000000000 |
| 1/4" | 40 to 400 in.-oz. 28 to 280 cNm | 1 in.-oz. 1 cNm | Clockwise and Counterclockwise | ±0.5% | ±0.5% | Hand Tools Only | 2 1/2" | 4 1/2" | 14 1/2" | No | 6 | 5/16" | Carrying Case, Female Drive Adapter | 0000000 | 00000000 |
in.-lbs., dNm | |||||||||||||||
| 1/4" | 5 to 50 in.-lbs. 5.6 to 56 dNm | 1 in.-lbs. 0.1 dNm | Clockwise and Counterclockwise | ±0.5% | ±0.5% | Hand Tools Only | 2 1/2" | 4 1/2" | 14 1/2" | No | 6 | 5/16" | Carrying Case, Female Drive Adapter | 0000000 | 00000000 |
| 1/4" | 10 to 100 in.-lbs. 11.3 to 113 dNm | 1 in.-lbs. 0.1 dNm | Clockwise and Counterclockwise | ±0.5% | ±0.5% | Hand Tools Only | 2 1/2" | 4 1/2" | 14 1/2" | No | 6 | 5/16" | Carrying Case, Female Drive Adapter | 0000000 | 00000000 |
Mounting Holes | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Wd. | Ht. | Dp. | Mounting Fasteners Included | No. Of | Dia. | Each | |
| Steel | 4 1/2" | 2 1/2" | 8 3/4" | No | 6 | 5/16" | 0000000 | 0000000 |
Accuracy | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Torque-Measuring Direction | Clockwise | Counterclockwise | For Tool Type | Ht. | Wd. | Dp. | Includes | Each | |
With Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | ||||||||||||
in.-lbs., kgf-cm, cNm | ||||||||||||
| 1/4" | 0.1 to 1 in.-lbs. 0.1 to 1.2 kgf-cm 1.1 to 11.3 cNm | 0.001 in.-lbs. 0.001 kgf-cm 0.001 cNm | Clockwise and Counterclockwise | ±1% | ±1% | Hand Tools and Nonimpact Power Tools | 2 1/8" | 8" | 4 1/4" | 3-ft Long USB Cable, 8 GB SD Card, AC Adapter, Carrying Case, Socket Screw Adapter (1.5 mm Hex) | 00000000 | 000000000 |
| 1/4" | 0.3 to 3 in.-lbs. 0.3 to 3.5 kgf-cm 3.4 to 33.9 cNm | 0.001 in.-lbs. 0.001 kgf-cm 0.001 cNm | Clockwise and Counterclockwise | ±1% | ±1% | Hand Tools and Nonimpact Power Tools | 2 1/8" | 8" | 4 1/4" | 3-ft Long USB Cable, 8 GB SD Card, AC Adapter, Carrying Case, Two Socket Screw Adapters (1.5 mm Hex) | 00000000 | 00000000 |
| 1/4" | 0.5 to 5 in.-lbs. 0.6 to 5.8 kgf-cm 5.6 to 56.5 cNm | 0.001 in.-lbs. 0.001 kgf-cm 0.001 cNm | Clockwise and Counterclockwise | ±1% | ±1% | Hand Tools and Nonimpact Power Tools | 2 1/8" | 8" | 4 1/4" | 3-ft Long USB Cable, 8 GB SD Card, AC Adapter, Carrying Case, Two Socket Screw Adapters (2.5 mm Hex) | 00000000 | 00000000 |
Square Drive Connectors for Torque Tool Testers
Use these connectors to test male square drive tools on torque testers that have a male square drive.
For technical drawings and 3-D models, click on a part number.
| Square Drive Size (Gender) | Material | Each | |
| 1/4" (Female) × 1/4" (Female) | Steel | 00000000 | 000000 |
Rotary Torque Testers
Monitor torque as you apply it—these testers mount between your torque tool and your fastener. Engage the fastener to track both torque and the angle of rotation for each crank of your tool (snug torque) before you've reached the final torque. This gives you a better idea if fasteners are consistently tightened than measuring torque alone. These testers are often used with nutrunners and click-style torque wrenches in the automotive and aerospace industries. Store up to 999 maximum torque (peak) and rotation values, including the date and time of each test, or transfer to your computer to view in an Excel file. CE marked, they meet European safety standards.
For the most accurate readings, the maximum torque you're applying should fall near the middle of the tester's torque range. They are not for use with impact tools.
Testers with a USB connection transfer data directly to your computer with the included cord. These testers last up to 10 hours on a single charge.
Testers with a Bluetooth connection wirelessly transmit data to a computer as you measure. You can also remotely set snug torque, or when these testers starting measuring the torque applied with each rotation. They last up to 8 hours on a single charge with Bluetooth on and 10 hours with it off.
For technical drawings and 3-D models, click on a part number.
Accuracy | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Clockwise | Counterclockwise | Lg. | OD | Features | Battery Type | Battery Charger Included | Includes | Each | |
USB-B Data Connection | ||||||||||||
| 1/4" | 280 to 1,400 in.-oz. 17.6 to 88 in.-lbs. 1.5 to 7.3 ft.-lbs. 20 to 100 kgf-cm 0.2 to 1 kgf-m 200 to 1,000 cNm 2 to 10 Nm | 1 in.-oz. 0.1 in.-lbs. 0.01 ft.-lbs. 0.1 kgf-cm 0.001 kgf-m 1 cNm 0.01 Nm | ±1% | ±1% | 2 15/16" | 1 13/16" | Plug Cover, Torque Measurement Memory | Rechargeable | Yes | 6 1/2-ft. Long USB Cord, AC Adapter | 0000000 | 000000000 |
Bluetooth Data Connection | ||||||||||||
| 1/4" | 280 to 1,400 in.-oz. 17.6 to 88 in.-lbs. 1.5 to 7.3 ft.-lbs. 20 to 100 kgf-cm 0.2 to 1 kgf-m 200 to 1,000 cNm 2 to 10 Nm | 1 in.-oz. 0.1 in.-lbs. 0.01 ft.-lbs. 0.1 kgf-cm 0.001 kgf-m 1 cNm 0.01 Nm | ±1% | ±1% | 2 15/16" | 1 15/16" | Plug Cover, Torque Measurement Memory | Rechargeable | Yes | AC Adapter | 0000000 | 00000000 |
Data-Recording Torque Gauges
Wrench-attachable sensors fit between your wrench and socket. Use with hand tools only.
Hand-turned sensors don't require a tool; place into your socket and turn them with your hand.
Accuracy | |||||||
|---|---|---|---|---|---|---|---|
| Square Drive Size (Gender) | Torque Range | Torque-Measuring Direction | Clockwise | Counterclockwise | Cord Lg., ft. | Each | |
in.-oz., in.-lbs., ft.-lbs., Nm, cNm, m-kg, cm-kg | |||||||
| 1/4" (Female) × 1/4" (Male) | 80 to 800 in.-oz. 5 to 50 in.-lbs. 0.417 to 4.17 ft.-lbs. 0.565 to 5.65 Nm 56.5 to 565 cNm 0.058 to 0.576 m-kg 5.76 to 57.6 cm-kg | Clockwise and Counterclockwise | ±1% | ±1% | 4 | 0000000 | 0000000 |
| 1/4" (Female) × 1/4" (Male) | 320 to 3,200 in.-oz. 20 to 200 in.-lbs. 1.67 to 16.7 ft.-lbs. 2.26 to 22.6 Nm 226 to 2,260 cNm 0.23 to 2.3 m-kg 23 to 230 cm-kg | Clockwise and Counterclockwise | ±1% | ±1% | 4 | 0000000 | 000000 |
Accuracy | |||||||
|---|---|---|---|---|---|---|---|
| Square Drive Size (Gender) | Torque Range | Torque-Measuring Direction | Clockwise | Counterclockwise | Cord Lg., ft. | Each | |
in.-oz., in.-lbs., ft.-lbs., Nm, cNm, m-kg, cm-kg | |||||||
| 1/4" (Male) | 2 to 20 in.-oz. 0.125 to 1.25 in.-lbs. 0.01 to 0.104 ft.-lbs. 0.014 to 0.141 Nm 1.41 to 14.1 cNm 0.001 to 0.014 m-kg 0.144 to 1.44 cm-kg | Clockwise and Counterclockwise | ±2% | ±2% | 4 | 0000000 | 0000000 |
| 1/4" (Male) | 16 to 160 in.-oz. 1 to 10 in.-lbs. 0.083 to 0.833 ft.-lbs. 0.113 to 1.13 Nm 11.3 to 113 cNm 0.012 to 0.115 m-kg 1.15 to 11.5 cm-kg | Clockwise and Counterclockwise | ±2% | ±2% | 4 | 0000000 | 000000 |
Square Drive Torque-Measuring Screwdrivers
Attach a socket to the 1/4" square drive tip to turn hex nuts and hex head screws. The dial on these drivers shows how torque measurements change as you turn. Use to fasten to a specific torque, determine fastener torque specifications, and identify the torque required to loosen tightened fasteners. To use with screwdriver bits, add a bit adapter. Drivers come with a calibration certificate that is traceable to NIST and includes the test measurements that confirm accuracy.
Drivers with memory pointer indicate the maximum torque reached.
Drivers with 1/4" female square drive in handle allow you to attach a T-handle or ratchet to the end for extra leverage when applying high torque.
Note: The accuracy ratings do not apply to the lower 20% of the torque range.
Accuracy | Material | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Drive Size | Torque Range | Graduations | Clockwise | Counterclockwise | Certification | O'all Lg. | Shaft | Handle | Features | Each | |
in.-oz., in.-lbs. | |||||||||||
| 1/4" | 0-24 in.-oz 0-1.5 in.-lbs. | 0.5 in.-oz .0312 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 7 3/4" | Steel | Plastic | Memory Pointer | 00000000 | 0000000 |
| 1/4" | 0-48 in.-oz. 0-3 in.-lbs. | 0.0625 in.-lbs. 1 in.-oz. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 9" | Steel | Plastic | Memory Pointer | 00000000 | 000000 |
| 1/4" | 0-192 in.-oz 0-12 in.-lbs. | 4 in.-oz. 0.25 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 8 3/4" | Steel | Plastic | Memory Pointer | 00000000 | 000000 |
| 1/4" | 0-384 in.-oz 0-24 in.-lbs. | 8 in.-oz. 0.5 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 8 3/4" | Steel | Plastic | Memory Pointer | 00000000 | 000000 |
| 1/4" | 0-480 in.-oz 0-30 in.-lbs. | 16 in.-oz. 1 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 8 3/4" | Steel | Plastic | Memory Pointer | 00000000 | 000000 |
in.-oz. | |||||||||||
| 1/4" | 0-8 in.-oz. | 0.25 in.-oz | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 9" | Steel | Plastic | Memory Pointer | 00000000 | 000000 |
in.-lbs. | |||||||||||
| 1/4" | 0-50 in.-lbs. | 1 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 8 3/4" | Steel | Plastic | Memory Pointer 1/4" Female Square Drive in Handle | 00000000 | 000000 |
| 1/4" | 0-75 in.-lbs. | 1 in.-lbs. | ±2% | ±2% | Calibration Certificate with Test Data Traceable to NIST Certificate of Calibration | 8 3/4" | Steel | Plastic | Memory Pointer 1/4" Female Square Drive in Handle | 00000000 | 000000 |