Set – Quickly turn to the desired torque value with a smooth thumbscrew adjustment.
Lock – Teeth inside the cover lock the torque setting in place while you are using the wrench.
Leave – Since there’s no internal tension when the wrench is at rest, you don’t need to turn it to the lowest setting for storage.

Each wrench is calibrated according to the ASME B107.300-2010 standard. The detailed test results are recorded on the included certificate.
Initial accuracyExpected future accuracyAll torque wrenches lose accuracy with repeated cycles. The information in this section helps you evaluate when recalibration may be necessary. | ![]() | Serial number |
Tekton Split Beam Torque Wrenches have an accuracy of +-4% or better. (Your wrench's specific calibration results at the time of manufacture will be shown on the included certificate.)
![]() Torque Setting | ![]() Maximum Expected Error |

See How it Works 0:34 |
The flexible head offers the clearance to work around nearby obstructions.

| Drive Size | 1/2 inch |
| Torque Range | 40 - 250 ft.-lb. |
| Dial Increment | 5 ft.-lb. |
| Accuracy | ±4% |
| Measuring Direction | Clockwise |
| Tooth Count | 72 |
| Country of Origin | Taiwan |
| Item Weight | 3.7 lb. |