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Likes: 975
Views: 15436
When you're cranking your nuts, take a moment to bend
Hi JC, a calibration video would be superb thank you. I always have a sense of anxiety around if the tool is truly providing the correct torque and I have no way of confirming it. I'm a d.i.y.'er and fairly simple method would be helpful. Cheers!
Another vote for vid about torque wrench calibration.
Thank you – really good informative video. One of your best / up there with the one on spring resetting from a while ago. I have W&B for engines etc and a Force for rougher work on suspension etc. What are your thoughts on leaving wrench in the set position vs putting it back to zero all the time – again everyone has a view? And yes to a video on calibrating thanks.
A quick PS – lots of people don't understand that a complete moving sweep to the click off point is essential ie you tighten up to say 5 lb short of the click off point and run out of swinging room, you need to loosen off because there might be say 10 lb to overcome the "bite" in the fastener.
The theory presented here is so incredibly easy to prove or disprove that all I'm going to say is, test it yourself. Connect two torque together, hold the handles at different places, etc. Even put a cheater on one. Beam type, click type, electrical resistance type, expect interesting results. I did all this years ago in a shop, and there were some surprised mechanics.
So 9% increase in torque, sounds within spec on most bolts tbh.
But I don't use torque wrenches as I have my ugga dugga wrench.
I'd offer that JC is completely wrong about the click type torque wrench. The friction of the click mechanism has nothing to do with where you grip the wrench.
Also he's wrong about the crow foot when set at 90 degrees, where the length is now the hypotenuse, and not the base of the triangle.
JC will profusely apologize to us when he uses a torque wrench calibration gauge and finds that the click point is irrespective of hand location. This is a well known advantage of click type torque wrenches.
However, if JC had a beam type torque wrench, hand location is important, and that's why this type of wrench has a pivot in the handle.
A practical demonstration using different hand positions would be very informative.
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