Re: Good Torque Wrench
Dave,
No offence taken whatsoever, you didn't say anything bad or upsetting to me...
While I can't arque that "torqueing fasteners" is in principle the same (in nature) physical process, equipment to perform it should be desirably optimized for specific application and tailored to realities of the market. Borka multi torque driver is 4 ounces in weight ( 6 ounces with specialized T.A.B. GEAR pouch) and barely larger than the Sharpie marker. It was designed to be carried around with ease, provide torque otput accuracy generally acceptable for firearms fasteners (+/-4%), can be switched to one of available 12 pre-set torque settings in a couple of seconds (and in low light conditions), and built to last reasonable amount of time w/o need to worry about "calibration".
As we already touched the essence of modern day calibration idea, it becomes obvious that the need for calibration in certain cases is somewhat more formal than practical, and, in my opinion, should not be regarded as a must to perform on a regular basis, when dealing with firearms.
Borka tool was also designed to be as simple as possible for function, durability and production cost reasons, and has 90 degree release angle, which makes it also easy to use. So, in my opinion, it is optimized for what it is intended to be used for. In comparison, the tool you're refering to does not offer these features, except may be, also being accurate enough, if you do your part... Therefore, in my opinion, it not optimized for the application, although it can also be used for the same application, assuming that it has a suitable torque adjustment range.
In addition of having generally desirable torque range, Borka tool is a FIXED type torque wrench, which is better by design for <span style="text-decoration: underline">repeatability</span> of torque settings as opposed to adjustable torque wrench, where repeatability depends on the skills and sharp eyes of the tool operator. Torque repeatability, in my opinion, is more important for precision long range shooter than absolute torque accuracy, which is supposetly verified by regular calibration procedures. Regular calibration procedures add to the cost of the tool ownership and therefore, not a desirable feature for the individual user with pre-determined budget.
Parts of precision rifle, as any other precision mechanism, will deflect differently if repeatability of torque application is not reasonably consistent, and we all know it will likely affect POI relative to POA, particular at long distances.
Borka tool also has a very considerable cost advantage relative to the tool you're using, which is generally welcomed by most individual users.
That's a brief summary of what I think...
Best to you,
Boris