Description
Sixteen inch-ounces is exactly one inch-pound, or about 11 N·cm. At that level, a normal screwdriver gives no feedback at all. The Snap-on TQS008AC torque driver measures in that tiny band. It is a Torqometer basic dial driver with a U.S. scale, and Snap-on lists the TQS008A model with half-ounce steps.
Where the TQS008AC sits in the low range
Snap-on’s US reading Torqometer drivers start very small. The table below shows the three lowest standard models, so you can compare the steps:
| Model | Range | Increments | Length |
|---|---|---|---|
| TQS004A | 8 in-oz | 1/4 in-oz | 8-5/8 in |
| TQS008A | 16 in-oz | 1/2 in-oz | 7-3/4 in |
| TQS012A | 24 in-oz / 1.5 in-lb | 1/2 in-oz / 1/32 in-lb | 7-3/4 in |
So the TQS008A doubles the reach of the TQS004A, while it keeps a fine 1/2 in-oz step.
Reading the Snap-on TQS008AC torque driver
A basic model has one needle, according to Snap-on. As a result, that needle follows the torque while you turn and returns when you stop. Therefore, keep your eye on the dial during the pull. If your process needs a stored peak, the follow-up TQS008FUA adds a second needle for that.
Very light assemblies
- Screws in camera, optical and laser modules.
- Trimmers, small switches and miniature connectors.
- Covers on hand-held meters and medical devices.
- Checking the output of low-torque electric screwdrivers.
In each case, the TQS008AC shows whether the screw got its specified load or too much.
Notes on drive, case and accuracy
In terms of class, the TQS008AC belongs to Snap-on’s 1/4 in drive Torqometer group, under the standard 2% accuracy heading. Each driver also ships in a PB47 storage case, so it stays protected between jobs. In addition, Snap-on uses a C at the end of the stock number for the version with a certificate of calibration. The Lost in HCM title says “with chart” instead, so confirm the documents in your quote.
No stubby basic version
The catalog shows no stubby basic model at 16 in-oz, only the stubby follow-up TQSS008FUA. Keep that in mind if space is tight.
Handling tips
Hold the TQS008AC by the handle rather than the dial, and turn slowly. Also, store it in its case and keep it away from vibration. Then verify it on a low-range torque tester at a fixed interval.
Order the TQS008AC
SMK Vietnam lists this driver for our partner Lost in HCM, who handles supply and pricing. When you are ready, request a quote from Lost in HCM and mention the screws you plan to check. Otherwise, browse other torque screwdrivers or contact SMK Vietnam.
Snap-on TQS008AC torque driver FAQ
How fine are the TQS008AC scale steps?
Snap-on lists 1/2 in-oz increments for the TQS008A over its 16 in-oz range.
Does a stubby basic TQS008 exist?
No. The catalog lists only a stubby follow-up version, the TQSS008FUA.
What does 16 in-oz equal in metric?
It equals about 11.3 N·cm, or roughly 0.11 N·m.
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