On 2/18/2018 5:07 PM, Dean Hoffman wrote:
> On 2/18/18 4:48 PM, AMuzi wrote:
>> On 2/18/2018 4:38 PM, Dean Hoffman wrote:
>>> On 2/18/18 4:25 PM, ultred ragnusen wrote:
>>>
>>>> I thought all torque wrenches needed your hand in a
>>>> certain given
>>>> spot?
>>>
>>> Â Â Â Â Â Â They measure torque at the head of the
>>> wrench, not
>>> the end of the handle.
>>> Take a wrench with a 2 foot handle. Say it takes 50 pounds
>>> of force at
>>> the end of the handle to loosen a nut.  Take a
>>> wrench with
>>> a 4 foot handle.
>>> It will take 25 pounds of force at the end of the that one's
>>> handle to loosen
>>> the same nut.  That's why cheater pipes work.
>>>
>>
>> Classic beam scale torque wrenches do indeed rely on a
>> single point load which is why the handle has a pivot pin.
>> Your comments are correct for click wrenches.
>>
> I don't get the why if this is what you mean by beam
> scale torque wrench.
> <https://www.homedepot.com/p/Presa-1-4-in-Drive-0-in-to-80-in-lbs-Beam-Style-Torque-Wrench-CP31006/206975714>
>
> or http://alturl.com/wsjx3

Yep that's the style. Scale reading assumes the load is at
the handle pivot pin.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971