Description
Lost in HCM titles this code “U.S. Basic Torque Driver (with Chart)”, and the Snap-on TQS012AC torque driver is that listing. Buyers who want the driver alone can see the plain TQS012A torque driver. Under both codes you get the same 24 in-oz dial, so the decision turns on records, not reach.
The paperwork behind the C in TQS012AC
Snap-on’s driver table in CAT1500i notes that drivers in the chart lack a certificate of calibration. It also explains that adding a C to the stock number orders a certified one. So the TQS012AC is the documented form of the TQS012A. However, Lost in HCM uses the word chart and does not list what it holds. If the format matters, ask for a sample with your quote.
Audits and first articles with the Snap-on TQS012AC torque driver
Instrument makers often face first-article checks on new products. Every torque tool on that job may need a record before the build starts. With the chart code, the driver can join that file on arrival. Similarly, a supplier audit runs smoother when no tool sits in quarantine. In addition, a lab that uses the TQS012AC as a reference for line drivers gains a record from day one.
When the TQS012A alone makes sense
By contrast, a site with its own low-range driver tester can verify the plain TQS012A itself. A spare driver for a repair bench may only need a cross-check against a master. In those cases, skipping the TQS012AC leaves money for bits and holders.
TQS012AC data from the shared row
| Item | CAT1500i value |
|---|---|
| Range | 24 in-oz / 1.5 in-lb |
| Graduations | 1/2 in-oz / 1/32 in-lb |
| Drive | 1/4 in |
| Standard body | 7-3/4 in |
| Related codes | TQS012FUA follow-up, TQSS012A stubby Basic at 5-1/4 in |
| Storage case | PB47 |
Fine steps at 24 in-oz
Each mark on the TQS012AC dial equals 1/2 in-oz, or 1/32 in-lb. That fine step suits small screws on circuit boards, optics and sensors. So hold the driver straight and turn without jerks. Snap-on’s UK brochure advises working near mid-scale, about 12 in-oz on this dial. Also, plan periodic rechecks, since Snap-on says recalibration keeps a torque tool accurate.
How to order the Snap-on TQS012AC torque driver
Lost in HCM supplies the TQS012AC in Vietnam and prepares the quote. Write the full code with the C, so the chart listing ships. Then open the TQS012AC quote page at Lost in HCM. For neighboring ranges, check our torque screwdriver section, or message SMK Vietnam with your screw spec.
TQS012AC questions from instrument labs
Does the chart change the TQS012AC dial?
No. The catalog shows one TQS012A row, so range, steps and body match the plain code.
Is there a shorter body?
Snap-on lists a stubby Basic TQSS012A at 5-1/4 inches. Ask Lost in HCM whether a chart version of that code is available.
What does 24 in-oz equal in N·cm?
About 17 N·cm, since one in-oz is roughly 0.706 N·cm.
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