Is Your Torque Wrench Accurate? | How to Test or Calibrate your Torque Wrench
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- เผยแพร่เมื่อ 28 พ.ค. 2024
- Are you snapping bolts or worried your torque wrench is out of spec? Here's a simple guide on how you can calibrate your torque wrench at home.
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My only question is how accurate is the digital adapter?
Good question. + \ - 2%
The docs for your torque adapter may say that, but it too needs to be verified as you are using it to calibrate other tools. Ask Dr. Google how to check the accuracy of your electronic torque adapter. It's straightforward and easy.
@@smbrannonIf you're going to check the digital adapter, presumably using weights, why not just skip the adapter and check the wrench with weights?
@@feanor5037 Because it's a great deal easier to use the digital torque adapter to measure a torque wrench than to monkey around with measuring length and using weights. Therefore, insure the digital adapter is accurate using the weights, as you are using it as your prime example, and then measure against it. I'm pretty sure even my Border Collie would immediately recognize the reasons and understand the process. 🙄
@@smbrannon So I have one torque wrench. I can either monkey around with weights calibrating the torque wrench directly, or monkey around with weights calibrating the digital adaptor and then use the digital adaptorr to calibrate the torque wrench.
It seems you're right to compare your critical thinking skills to that of a border collie. Eager to be seen to work hard and impress but unable to see when a labour saving gadget is just adding complexity to a process! 😅
(Seriously though, why can't we just have an adult discussion without making insulting insinuations about each others' intelligence?! Maybe I'm missing something but in my above scepticism of a digital adaptor for home use I'm not sure I am.)
Great info!! Been wrenching for 50 years and never knew this!!
Thank you, helped! I love youtube with people like you!
Great information! Thanks.
Thanks for the info I got all 3 sizes of the harbor freight torque wrenches lol. Appreciate it!👏
Good information Video! Thank you!
Great video!
Good lesson man. Thanks very much 👍 🥃
Thanks. I learned something.
thanks for the helpful video
I have the HF torque wrench, now in case I need I can make the adjustment. Thank You!
Mistaken a Torx with Allen head is a caused for a lot of headaches.
Happened to me before 😅
There is another way of recalibration, which may be less costly, but yours is straightforward 👌
Care to share?
Well, what is it?
i used a digital luggage scale used for checking your bags for flying and just chucked up bolt in vise and pulled on handle check pounds of force till it clicked and just measure how far from the center of socket to where scale was hooked on handle then do the math if you are 18 inches you multiply by 1.5 for example
@@squirrelcovers6340Using weights. There are other videos demonstrating the method if you search YT
Hello could you test the torque wrenches at different grip points, say at the end where you would normally push from at 6"-12" choked up on the handle.
I have seen other videos that say where you place your hands gives different results.
Thanks
I have the same adapter...I noticed you aren't waiting for the red signal and steady buzz. Only calibrating at green. My understanding is torquing to steady red gives accurate peak
I have a 40-year-old made in America torque wrench that i tested using the luggage scale pulling on wrench and it tested within a pound I guess they made them better back then mine does not even seem to have an adjustment and it was not that expensive just from local auto parts store
How do you calibrate the tester?
Thx!!
Once again young man very very great information . information that someone can actually use I’ve never looked to do something like that with my torque wrench but now I know how to adjust it. By the way I have a snap on the one that you dial the torque setting to can you adjust those also?✝️✝️✝️
Thank u sir
Some inside baseball from an engineer: +/- 20% of the nominal value is fine for most steel to steel applications. Steel to aluminum and small fasteners you want that tighter accuracy.
Take all tension off of the tourqe wrench, right under the lowest setting, keeping the spring in a neutral position, vack off too much, and you're going to also be leaving tension on the spring
How do you know the digital torque adapter is accurate?
How do you know your torque adapter is accurate?
I just bought one but its waaaay off and it doesnt even click on the lowest number cant believe i got a broken one
Wrong.....sorry, on the second Torque.....the allen screw is for the SPAN.....
You need to adjust the low range with the nut (like the 1st trq) and fine tune the upper range with the allen screw....then recheck low range
Also, when storing, leave it at MINIMUM Setting.....not 10 (which as probably no graduation)
PS - I calibrate and maintenance torque for over 25 yrs.....
Unfortunately, there are many "how to" videos on TH-cam giving incorrect advice on adjusting torque wrenches. At least this isn't one giving wrong instructions on how to initially check the torque delivery - so many using weights or scales do it wrongly and would have anyone who did have an accurate wrench believe it was out of spec.
Why leave the torque wrench at 10 ft. Lbs?
I'm an aircraft mechanic. We leave ours at the lowest torque setting when not in use to keep tension off the internal spring.
@@berticusmaximus8381is it bad that ive left mine above that for about 2 weeks now? Ive done it now but had no knowledge to do this beforehand
Best way to check is to calibrate it. Two weeks is probably ok but don’t do it all of the time.
The harbor freight $20 torque wrench Instructions say to go up go maximum setting and low setting once in a while. It's the 3/8 size. Honestly only things I bought it for is the oil drain bolts.
As usual, no metric values.
Nm / newton meter is not as easy too .
Because 9.8 Nm is 1 Kgm
Or 1Nm is 0.1019 Kgm .
So for speed of calibrating
A 50 pound force at 1 foot = 50ftlbs . Faster without calculation .
I switch back and forth from Nm to FtLbs.
For calibrating using a weight scale . I’ll go with ftlbs for speed of it
What does it matter? Pick a metric torque and do it the same way. Torque is torque.
@@berticusmaximus8381 That's how NASA crashed it's Mars Climate Orbiter, some high end engineer didn't think it mattered.
@@ChargedPulsar I think you misunderstood me. I'm not saying that they are the same, just that you can calibrate it in either. When I said torque is torque, I meant it doesn't matter which you use as long as the torque value is the correct one. There is no better version of torque. The orbiter thing was a little more complicated than making sure your torque wrench was calibrated correctly.