Re: Inch/Pound Torque Wrench
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: dstewart51</div><div class="ubbcode-body">...Beam style torque wrenches are surprisingly accurate and retain linearity better then spring detent clicker's....
The Borka is nice, but your limited to a set of giving values. </div></div>
First, thank you very much for a compliment.
Second, while I do not dispute accuracy of beam type wrench, assuming, of course, that it is properly calibrated, or, to be more specific, is properly "zeroed", I just wanted to point out that my "spring detent clicker" does not have any issues with linearity, because it does not have one, being a pre-set type of torque driver. Spring load is set only once, then setup is fixed and all 12 settings are provided by the geometry of the rigid driver arm, and not by spring adjustment.
Beam type torque tool may have linearity issues, cause it is still the <span style="text-decoration: underline">spring based torque indicating device</span>, but instead of helical spring, it uses, let's say, flat spring shaped like a solid rod or something like that. This tool can be easily zeroed, but how accurate it is depends upon keeping the elastic specs of spring rod very, very consistent from one tool assembly to the other, which depends upon consistency of metal composition, heat treatment and spring dimensions. In mass production, it is not easy to obtain "precision" heat treatment results without going an extra mile...
In regard to having only 12 fixed torque settings - hey, Seekink T-handle only has one, but it is used by precision shooters cause they want both accuracy and consistency, which is known to be more easily obtained from the pre-set torque tools - no operator error reading the scale, no need to have good light conditions to see the scale at all, etc... Having 12 fixed torque settings of specific values was determined, by expert and user feedback, to be sufficent to cover most of the shooting public needs, while keepting the whole package several times smaller and lighter than, say, beam type torque tool provides. MG driver is just completely different animal, practical solution to shooters needs and is not intented to compete with beam torque wrench, which is, I believe, is more of the general purpose lab type tool. Beam type tool, by the way, from my own experinece, can go bad real easy if dropped... You can drop MG driver, and it will likely still work O.K. with the same accuracy and consistency.