Description
Maintenance benches rarely tighten the same screw twice in a row. For example, one job needs a light setting for a sensor cover, and the next needs more for a bracket. The Snap-on QTS135 limiting driver handles that mix. It sets anywhere from 5 to 35 in-lb, and its clutch lets go at the chosen value.
How the clutch protects the joint
Snap-on states that the clutch allows 25 degrees of free rotation once the set torque arrives. In other words, the handle keeps moving while the screw stays put. The operator then feels that release and stops. Because of this, the tool limits the torque rather than relying on the user to read a scale.
Setting the Snap-on QTS135 limiting driver
The QTS135 uses a micrometer-type adjustment, much like a click wrench. Turn the handle until the scale lines up with your value, and the steps run in 0.5 in-lb increments. Then make a test run on a scrap joint or a torque tester. Also set it back near the low end at the end of the day, which many shops do to rest the spring.
Key figures
| Item | QTS135 |
|---|---|
| Range | 5-35 in-lb |
| Increments | 0.5 in-lb |
| Drive | 1/4 in square |
| Length | 7 in |
| Accuracy | ±4% of setting, 20% to full capacity |
| Direction | Clockwise and counterclockwise |
Since the accuracy holds from 20% of capacity, aim for settings of 7 in-lb or more. Below that, a smaller driver will give a better result.
Where the QTS135 fits
- Maintenance benches that service many small assemblies.
- Prototype and R&D work where values change often.
- Field kits for instrument and control technicians.
- Repair of electrical panels with mixed screw sizes.
QTS135 or QTSP135?
Both the Snap-on QTS135 limiting driver and the QTSP135 share the same range. However, the QTSP135 comes preset from the factory for one fixed value. So choose the QTS135 when your values change, and the preset model when they never do.
Buy the Snap-on QTS135 limiting driver through Lost in HCM
SMK Vietnam lists this driver for its partner Lost in HCM, which supplies it in Vietnam. So for price and lead time, request a quote from Lost in HCM. You can also browse other torque screwdrivers or contact SMK Vietnam.
QTS135 adjustable driver FAQ
What range does the QTS135 cover?
It sets from 5 to 35 in-lb in 0.5 in-lb steps.
Does it tighten left-hand threads too?
Yes. Snap-on rates its accuracy in both clockwise and counterclockwise directions.
How does it stop over-torque?
Its clutch gives 25 degrees of free rotation when the set torque arrives, so the screw stops turning.
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