Calibrating torque wrenches, was dist. rattle

[Bernie Benz]

> From: auditude at cox.net
> 
> Is there a DIY calibration, versus calibration checking?
> 
> Ken,

What's the diff, Ken?  A check or calibration is only a repeatability check
on the previous calibration.  I do it before every use (once every 2 or 3
years, if I need the wrench and can find it).  DYI is pretty simple.
Torque = force x the quadature lever arm length.

Bernie