Calibrating torque wrenches, was dist. rattle

Bernie Benz b.benz at
Tue Jan 27 20:26:08 EST 2004


Had it calibrated, or DIY?  It's a simple DIY job if one has a bathroom
scale, dead weights, or better, and one can easily monitor repeatability.
The clickers are bad, the bending beams are good in this respect.


> From: <auditude at>
> There are also those, at least me, that had their torque wrench calibrated.
> It was actually quite a bit off.  But this is a old hand-me-down Snap-On.  It
> seems like a pretty good quality tool, so it seem worth it to at least check
> the calibration.  They said it was still good, and I think they mentioned that
> they don't see many like that come in.
> I like to use it wherever it seems important, wheels, engine building, etc.
> Other stuff I just make tight.
> The whole calibration thing tho' is false security.  It only shows that it was
> in calibration when it left the metrologist, after that who knows.
> Maybe if you always subjected the wrench to the same routine, and could
> establish over time that it stayed in calibration, then one could be really
> secure.
> Ken
> Bernie Benz b.benz at wrote:
> "Also, there those DIYers among us insecure enough that they must use an
> uncalibrated torque wrench on every nut and bolt."

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