Description
Medical device makers must prove that each assembly step meets its spec. The Snap-on TESI20LC torque wrench supports that proof at the bench. It is a Torqometer light signal wrench that reads in newton meters. Its source name also says it comes with a calibration certificate, which helps when auditors ask for tool records.

Light signal checks in a device plant
The operator dials in the target value first. Then, as the pull reaches that value, a lamp lights up. This gives a clear cue even when the operator wears gloves and safety glasses. As a result, the TESI20LC helps keep fixture and sub-assembly joints on spec.
Records, certificates and the Snap-on TESI20LC torque wrench
Quality systems in this sector link every tool to a record. Because the source lists a calibration certificate with the TESI20LC, you can open that record on day one. Ask Lost in HCM what the certificate states, then file it in your tool register. Note that this page makes no claim about who issued it.
Bench tasks for the TESI20LC
- Housing and cover screws on monitors and analyzers.
- Fixture and jig bolts that hold parts during bonding or welding.
- Sub-assembly checks during design transfer and pilot builds.
- Rework checks after a nonconformance review.
However, many device screws need very low torque. So confirm the range with Lost in HCM before you assign the wrench to a station.
Newton meter scale and accuracy grade
Most device drawings give torque in N·m or N·cm, so a newton meter dial fits the paperwork. Lost in HCM places the TESI20LC in its Newton Meter Reading/Standard 2% Accuracy group. Snap-on defines Standard Torqometer accuracy as within 2% of reading, from 20% of full scale to full scale. We did not find this C-suffix code in a Snap-on catalog. Therefore, its range and drive size stay off this page.
Handling in controlled areas
Wipe the Snap-on TESI20LC torque wrench with a lint-free cloth before it enters a controlled area. Follow your own site rules on which cleaners suit painted and chrome parts. Also keep it in its case whenever it sits idle. Then check that the lamp works before each lot. Recalibrate on the cycle your quality plan sets, and add each new certificate to the record.
Order the Snap-on TESI20LC torque wrench
Lost in HCM supplies this Torqometer in Vietnam, and SMK Vietnam lists it as a partner product. For pricing and certificate details, request a quote from Lost in HCM. You can also see more torque wrenches, visit snapon.com, or contact SMK Vietnam.
Medical assembly FAQ for the TESI20LC
What does the light signal do?
It lights when the torque reaches the value you set. So the operator knows when to stop the pull.
Who issues the calibration certificate?
The source does not say. Ask Lost in HCM for the details before you order.
Will the dial read in N·cm?
The listing names newton meter reading. Lost in HCM can confirm the exact steps on the dial.
















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