Regarding #2, to be precise, I suppose that very long or low-quality drive
extensions could affect the torque reading, by twisting (much like a torsion
bar)... but you gotta do what you gotta do, and it's better than not using
a torque wrench at all in those hard-to-reach places.
on 1/24/04 12:08 PM, Bullwinkle at yd3@nvc.net wrote:
> EXTENSIONS
>
> 1. HANDLE EXTENSIONS
>
> Handle extensions (a piece of pipe put onto the wrench in order to make
> torqueing easier) SHOULD NOT BE USED under any circumstances. Their use
> will result in erroneous torque readings, and may damage the grip or the
> adjusting mechanism. While applying torque, the wrench should be held
> ONLY BY THE GRIP. At high torque readings, if both hands are necessary
> to apply enough pressure to operate the wrench, hold the grip in one
> hand, and put the other hand on the top of the first hand, never on the
> wrench body.
>
> 2. DRIVE EXTENSIONS
>
> There are two types of drive extensions. Concentric extensions extend
> directly along the centerline of the drive and as such do not effect the
> torque readings. These are usually in the fotm of round torsion bars
> with a square on one and and the corresponding square socket on the
> other. Other extensions and attachments extend to points away from the
> centerline of the drive and the torque applied with them is different
> from the torque set on the wrench. Crow foot ends for example.
>
> Blake
>
--
Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires
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