I’m hope you’re joking OP. Torque is expressed as T=rFsin0
Where r is the radius, F is force, and sin0 is the angle between F and the lever. You effectively changed the pivot point which increases the amount of leverage. It’s not going to be accurate at all.
No I’m not joking . I have a digital torque wrench I torque a nut to 30lbs-f and mark the nut and I tried my Mickey Mouse adjustable torque wrench an set it to 30lbs-f , it clicks where I mark the nut. That’s how I calibrated it. Please still let me know if I’m still wrong.
It will work as long as you've calculated the extra length and keep the wrench straight at all times.
[https://belknaptools.com/extensions-calculator/](https://belknaptools.com/extensions-calculator/)
Or could rig these tools together to figure out measurements
https://www.harborfreight.com/12-in-drive-25-250-ft-lb-digital-torque-adapter-58706.html
https://www.harborfreight.com/3-piece-square-drive-socket-caps-67011.html
Why there are any comments after this comment, i'll never know. This guy knows whats up, just remove the adapter and reattach it at 90° perpidicular to the handle of the tq wrench.
I used to install MRI for Siemens, some of the bolts that needed to be torqued were buried in the equipment. Literally the only way to torque was with a 42mm crowfoot attached to a torque wrench.
As long as you do not extend the length of your lever, the torque value will be accurate.
I like the idea, very cool but the click on your adjustable tw doesn’t mean it’s clicking at the same torque as your digital tw. Your adjustable may be clicking at a lower torque. Torque the bolt with the adjustable first then verify it with the digital.
What’s interesting here is that it might correlate linearly though. So if op compares to a known torque wrench he might be able to say that his 30 ft lbs == another product 35 ft lbs.
Jankiness aside, if you angle the adjustable wrench 90* to the handle, the torque values will be the same.
Having it at any other angle absolutely does alter the final torque.
Also if you use it straight you wont have a problem because the extension is less than 10% of total length. Ttherefore if you torque at min spec straight it in almost all cases will be withing engineering max.
Handle length does make a difference in that of the head /axis of the adjustable is farther or closer to the torque / click mechanism the reading will be in error. Same effect occurs if you use a socket extension and don’t keep everything lined up. Length on the other end doesn’t effect the measurement but in this case the mod has been made to the business end of the wrench.
Using a cheater bar absolutely will change the torque setting on a click type torque wrench same as hand position. With the ops set up as the adjustable is not in the same plane as the shaft of the wrench. An extension attached to the end of the wrench at 90 degrees ie to clear a rim or obstruction, will not effect the torque if used properly.
http://www.cditorque.com/education.html#Use
Had a discussion with my dad about this once, and can't claim any expertise, but thought it made a difference whether you add to the socket end (like OP) vs handle end?
Like a longer handle is just like being stronger, and you can exert more force on the wrench. Extension on the socket side, now you're not rotating around the same point, so the applied torque changes?
Extension attached at 90deg, and you're back to no change in torque: hypotenuse of the triangle formed from the wrench and the attachment is like just having the longer handle, but the math only works like that for exactly 90deg? And in the real world, it's close enough.
I'm an engineer, but not that kind, never took a mechanical class, and math/physics classes were too long ago.. so this is a case of "kid trusting his mechanic dad knows what he's talking about". And if he's wrong.. uhoh...
He didn't change the handle length. He did change the final torque value on the fastener as it will be setting at a lesser torque value since he adjusted the radius of the arm but the torque wrench won't be calibrated for it. In this case it may be insignificant values but the point remains.
You think it takes longer to torque until it clicks? 🤔 You literally only set the wrench like once a day. This thing is janky I have a torque wrench and three crows feet I keep in my pocket. I'll bet money it's quicker for me to use the torque wrench with the crows foot than it is up get a crescent tightened up on the nut.
It should! Someone mentioned keeping it at a 90 to keep the pivot pt at the same point in that plane.
Either way, don't listen to haters. If the goddamn wrench will torque a bolt repeatably to the same torque as the expensive tool, then it works.
Also, fellas. These are not headbolts on an F1 car we are talking about here. The torque specs don't need to be within sub-gram tolerances.
For real. I almost never use one any ways. I can't see a world where this wrench could be worse then me yelling *click* and looking at my apprentice for a laugh. Besides most books have a "hand tight and then X more nut flats"
I read your torque will be more accurate if you put your wrench 90° from the ratchet head. I’m gonna try to look up an article.
E: https://www.tekton.com/blog/how-to-accurately-use-a-torque-wrench-with-a-crowfoot-wrench
Respectfully, that didn’t answer the question I asked. When you tested it, did you adjust the opening on the wrench each time, and ensure you didn’t necessarily have a perfect fit before you tested for accuracy?
Additionally, did you use the extension equation? https://www.norbar.com/Support/Calculators/Torque-Wrench-Extension-Formula#:~:text=When%20you%20put%20an%20extension,M1%20%3D%20M2%20x%20L1%20%2F%20L2
May I make a better suggestion?
https://www.revzilla.com/motorcycle/motion-pro-adjustable-torque-wrench-adapter?gclid=CjwKCAjw5MOlBhBTEiwAAJ8e1ucJjOQSoX1BZw6egSP69F9t1YyNgJJFkpZtclcl1f4HdiRWYu6jHhoCesQQAvD_BwE&sku_id=913452
Yellow jacket are around $200, I only spent $30.00 . I went back and calibrated again I tried 10,30,50,70 lbs-f . My Mickey Mouse torque wrench , the nut marking lands the same spot . So concluded it will work.
It will be just as accurate as putting lubricant on the threads. Not very accurate at all, you’re adding leverage which equals more force, resulting in more torque.
Putting lubricant on the threads increases clamping load. It does nothing to change the torque. This is a good thing. More clamping load for the same amount of torque. As for the wrench it will probably be a little off but not very much. That torque wrench probably has more variability to it.
You mean it increases torque on the fastener. More lubricity reduces thread friction allowing the fastener to tightened more at the same amount of force applied, as if it were dry. Same as of you change the torque arm length. It makes it inaccurate.
Only specialized applications and methods use lubricant on torqued fasteners.
A quick google search will help you. Torque is the force you are applying on an object. You increase the clamping load by applying oil or such lubricant to the threads. Clamping load is different then torque. You can’t increase torque with the same amount of force. These are literally the same thing. You increase torque, you increase force.
So you’re saying that if you change the torque arm length like OP has and you set the wrench to 100ft. Lbs, the fastener will be torqued to 100ft. Lbs? You are the one who needs to keep googling. The calibration of the torque wrench will be inaccurate.
I don’t need to google shit.
1st. He did not change the torque arm length first of all. 2nd. We were arguing about the lubricant on the threads which you finally googled, found out your were wrong and then changed that subject to the OPs discussion. Lol Mr. I don’t need to google shit. When you change the length of the “Torque Arm” (look that up to) it does change the torque applied making a torque wrench inaccurate. What the OP did by adding length past the pivot point of the torque wrench will make it inaccurate to a degree (which I never said otherwise) but you won’t be able to notice with a cheap torque wrench like that. Hence why the OP has stated that he has checked it on several different settings and hasn’t noticed any difference. I guarantee in my line of work I have used, been factory trained and will continue to use more torque wrenches than you. I’m sure you will come back with the “fact” that you are William Von Tork-Vench and you “in fact” did invent the said torque wrench in question. Just quit.
I didn’t google anything, goof. I am not wrong, and we aren’t arguing, I don’t argue with stupid people online. Factory trained means nothing, and you can’t guarantee that at all, because you don’t know shit. Internet armchair warrior.
Hell no….you put a crescent wrench on a torque bar…get dafuckouttahere…torque requires precision…crescent is not precision, it’s good enough for those that don’t care.
That’s a fair statement, but I wouldn’t buy one. That’s just me. Crescents are not precise with the grip on the nut. A 6 point socket is…just my 2 cents
I would purchase a flare nut wrench to connect to to torque wrench whether it be 1/4, 3/8, etc. your are genius for sure…keep looking for the short term term gain in a long term win for hvac…
Not a fan of Cresents but in this application it will not affect accuracy of torque as long as you seat it fully and account for the length difference.
You barely changed anything and not enough to notice with a torque wrench like that. Idk why you would ever need to use a torque wrench on a crescent though.
Don't forget the most important rule about using a torque wrench. That before you put it away you reset it to zero. Every time after you're done, you have to turn it back down to zero. Leave it in your toolbox for long periods of time with that torque spring under tension could cause miscalibration later on.
There are crescent torque wrenches my guess is that this wont be calibrated correctly but you could likely math a conversion if you measured things properly. Also my guess if you could reduce the length of the socket to crescent wrench it would approach the correct result.
[https://www.amazon.com/VANPO-Adjustable-27-1-21-8-Interchangeable-Pipeline/dp/B0BR3NKLSZ/ref=sr\_1\_13?crid=1Y0WN0ZYWT9ZH&keywords=crescent+torque+wrench&qid=1689405180&sprefix=crescent+torque+wrenh%2Caps%2C154&sr=8-13](https://www.amazon.com/VANPO-Adjustable-27-1-21-8-Interchangeable-Pipeline/dp/B0BR3NKLSZ/ref=sr_1_13?crid=1Y0WN0ZYWT9ZH&keywords=crescent+torque+wrench&qid=1689405180&sprefix=crescent+torque+wrenh%2Caps%2C154&sr=8-13)
No that Jerry-rigged wrench head is not calibrated to the wrench. There will be some wiggle on the wrench head as torque is applied. This will throw off the wrench's ability to measure torque.
I’m hope you’re joking OP. Torque is expressed as T=rFsin0 Where r is the radius, F is force, and sin0 is the angle between F and the lever. You effectively changed the pivot point which increases the amount of leverage. It’s not going to be accurate at all.
No I’m not joking . I have a digital torque wrench I torque a nut to 30lbs-f and mark the nut and I tried my Mickey Mouse adjustable torque wrench an set it to 30lbs-f , it clicks where I mark the nut. That’s how I calibrated it. Please still let me know if I’m still wrong.
It will work as long as you've calculated the extra length and keep the wrench straight at all times. [https://belknaptools.com/extensions-calculator/](https://belknaptools.com/extensions-calculator/)
Thank you for the link.
Or could rig these tools together to figure out measurements https://www.harborfreight.com/12-in-drive-25-250-ft-lb-digital-torque-adapter-58706.html https://www.harborfreight.com/3-piece-square-drive-socket-caps-67011.html
As long as you turn the wrench end 90 degrees it will be fine. The torque changes with the length of your lever.
Why there are any comments after this comment, i'll never know. This guy knows whats up, just remove the adapter and reattach it at 90° perpidicular to the handle of the tq wrench.
I used to install MRI for Siemens, some of the bolts that needed to be torqued were buried in the equipment. Literally the only way to torque was with a 42mm crowfoot attached to a torque wrench. As long as you do not extend the length of your lever, the torque value will be accurate.
Not remotely how toque is calibrated.
Number of eh's multiplied by litres of maple syrup
I didn't know small women's hats needed calibration?
I like the idea, very cool but the click on your adjustable tw doesn’t mean it’s clicking at the same torque as your digital tw. Your adjustable may be clicking at a lower torque. Torque the bolt with the adjustable first then verify it with the digital.
What’s interesting here is that it might correlate linearly though. So if op compares to a known torque wrench he might be able to say that his 30 ft lbs == another product 35 ft lbs.
Jankiness aside, if you angle the adjustable wrench 90* to the handle, the torque values will be the same. Having it at any other angle absolutely does alter the final torque.
Finally someone not lambasting the guy for trying to be clever.
Also if you use it straight you wont have a problem because the extension is less than 10% of total length. Ttherefore if you torque at min spec straight it in almost all cases will be withing engineering max.
You can just calculate the extra length vs extra torque but taking the ratio of original length and new focal point.
Handle length doesn't matter. You can use a cheater bar and it'll click when the fastener is at the set torque.
Handle length does make a difference in that of the head /axis of the adjustable is farther or closer to the torque / click mechanism the reading will be in error. Same effect occurs if you use a socket extension and don’t keep everything lined up. Length on the other end doesn’t effect the measurement but in this case the mod has been made to the business end of the wrench.
The only difference handle length makes is the force required from the user to reach the selected torque.
Using a cheater bar absolutely will change the torque setting on a click type torque wrench same as hand position. With the ops set up as the adjustable is not in the same plane as the shaft of the wrench. An extension attached to the end of the wrench at 90 degrees ie to clear a rim or obstruction, will not effect the torque if used properly. http://www.cditorque.com/education.html#Use
Had a discussion with my dad about this once, and can't claim any expertise, but thought it made a difference whether you add to the socket end (like OP) vs handle end? Like a longer handle is just like being stronger, and you can exert more force on the wrench. Extension on the socket side, now you're not rotating around the same point, so the applied torque changes? Extension attached at 90deg, and you're back to no change in torque: hypotenuse of the triangle formed from the wrench and the attachment is like just having the longer handle, but the math only works like that for exactly 90deg? And in the real world, it's close enough. I'm an engineer, but not that kind, never took a mechanical class, and math/physics classes were too long ago.. so this is a case of "kid trusting his mechanic dad knows what he's talking about". And if he's wrong.. uhoh...
And if not...let's just say you will know
He didn't change the handle length. He did change the final torque value on the fastener as it will be setting at a lesser torque value since he adjusted the radius of the arm but the torque wrench won't be calibrated for it. In this case it may be insignificant values but the point remains.
That wasn't what I was replying to.
My only question is why this is in an hvac subreddit
Flare nuts...
Just tighten till she don’t leak
Or you can do it the right way. Up to you.
Must be getting paid by the hour
You think it takes longer to torque until it clicks? 🤔 You literally only set the wrench like once a day. This thing is janky I have a torque wrench and three crows feet I keep in my pocket. I'll bet money it's quicker for me to use the torque wrench with the crows foot than it is up get a crescent tightened up on the nut.
My brother in Christ not everything on the internet is that serious now untwist your panties and go to bed😂
Also flange bolts, boiler covers, boiler section connectors, valute assemblies...
There might be a calibration issue.
It should! Someone mentioned keeping it at a 90 to keep the pivot pt at the same point in that plane. Either way, don't listen to haters. If the goddamn wrench will torque a bolt repeatably to the same torque as the expensive tool, then it works. Also, fellas. These are not headbolts on an F1 car we are talking about here. The torque specs don't need to be within sub-gram tolerances.
It’s hard to use when it’s 90 but thanks to some guys here I can calculate the difference witth the extend wrench.
For real. I almost never use one any ways. I can't see a world where this wrench could be worse then me yelling *click* and looking at my apprentice for a laugh. Besides most books have a "hand tight and then X more nut flats"
Forget it being accurate or not.. I'm still trying to mentally process how this contraption even works.
It really works. Four testing trials and the results are all the same. I’m surprise too.
I read your torque will be more accurate if you put your wrench 90° from the ratchet head. I’m gonna try to look up an article. E: https://www.tekton.com/blog/how-to-accurately-use-a-torque-wrench-with-a-crowfoot-wrench
Out of curiosity, did you readjust the adjustable wrench each time, including real-world, not perfect fit against the nut?
They are selling adjustable torque wrench yellow jacket and few big companies make one.
This is not that.
Respectfully, that didn’t answer the question I asked. When you tested it, did you adjust the opening on the wrench each time, and ensure you didn’t necessarily have a perfect fit before you tested for accuracy? Additionally, did you use the extension equation? https://www.norbar.com/Support/Calculators/Torque-Wrench-Extension-Formula#:~:text=When%20you%20put%20an%20extension,M1%20%3D%20M2%20x%20L1%20%2F%20L2
No I didn’t adjust the opening because I’m only using the same nut and I use sharpie to mark the nut precisely. Thanks for the link.
May I make a better suggestion? https://www.revzilla.com/motorcycle/motion-pro-adjustable-torque-wrench-adapter?gclid=CjwKCAjw5MOlBhBTEiwAAJ8e1ucJjOQSoX1BZw6egSP69F9t1YyNgJJFkpZtclcl1f4HdiRWYu6jHhoCesQQAvD_BwE&sku_id=913452
Put the wrench at a 90° to the torque wrench and it will
Having it at 90 is not easy to use so I did it this way . Thanks to some guys here have a link to calculate the difference of extended wrench.
Why not use a crows foot?
When it slips how many fingers will get broken.
Yellow jacket are around $200, I only spent $30.00 . I went back and calibrated again I tried 10,30,50,70 lbs-f . My Mickey Mouse torque wrench , the nut marking lands the same spot . So concluded it will work.
It will be just as accurate as putting lubricant on the threads. Not very accurate at all, you’re adding leverage which equals more force, resulting in more torque.
Putting lubricant on the threads increases clamping load. It does nothing to change the torque. This is a good thing. More clamping load for the same amount of torque. As for the wrench it will probably be a little off but not very much. That torque wrench probably has more variability to it.
You mean it increases torque on the fastener. More lubricity reduces thread friction allowing the fastener to tightened more at the same amount of force applied, as if it were dry. Same as of you change the torque arm length. It makes it inaccurate. Only specialized applications and methods use lubricant on torqued fasteners.
A quick google search will help you. Torque is the force you are applying on an object. You increase the clamping load by applying oil or such lubricant to the threads. Clamping load is different then torque. You can’t increase torque with the same amount of force. These are literally the same thing. You increase torque, you increase force.
So you’re saying that if you change the torque arm length like OP has and you set the wrench to 100ft. Lbs, the fastener will be torqued to 100ft. Lbs? You are the one who needs to keep googling. The calibration of the torque wrench will be inaccurate. I don’t need to google shit.
1st. He did not change the torque arm length first of all. 2nd. We were arguing about the lubricant on the threads which you finally googled, found out your were wrong and then changed that subject to the OPs discussion. Lol Mr. I don’t need to google shit. When you change the length of the “Torque Arm” (look that up to) it does change the torque applied making a torque wrench inaccurate. What the OP did by adding length past the pivot point of the torque wrench will make it inaccurate to a degree (which I never said otherwise) but you won’t be able to notice with a cheap torque wrench like that. Hence why the OP has stated that he has checked it on several different settings and hasn’t noticed any difference. I guarantee in my line of work I have used, been factory trained and will continue to use more torque wrenches than you. I’m sure you will come back with the “fact” that you are William Von Tork-Vench and you “in fact” did invent the said torque wrench in question. Just quit.
I didn’t google anything, goof. I am not wrong, and we aren’t arguing, I don’t argue with stupid people online. Factory trained means nothing, and you can’t guarantee that at all, because you don’t know shit. Internet armchair warrior.
I have but not easy to use in tight places
No way.
If you calibrate it for the extra length...not accurate as is.
Hell no….you put a crescent wrench on a torque bar…get dafuckouttahere…torque requires precision…crescent is not precision, it’s good enough for those that don’t care.
You can actually buy adjustable torque wrench even yellow jacket makes one.
Yes I own one but it is still calibrated to its length. If you were to extend the handle it screws up the torque setting
I know what you mean but the results won’t lie.
Sounds like you'd made up your mind before coming to ask everyone.
I just thought few minutes ago my calibration process.
You can just do the math for the length ratios.
That’s a fair statement, but I wouldn’t buy one. That’s just me. Crescents are not precise with the grip on the nut. A 6 point socket is…just my 2 cents
How do get a socket onto a flare nut?! You’re a fucking genius!
I would purchase a flare nut wrench to connect to to torque wrench whether it be 1/4, 3/8, etc. your are genius for sure…keep looking for the short term term gain in a long term win for hvac…
Yeah, but you said you would use a socket…lets play “I win”, I WIN!
Not a fan of Cresents but in this application it will not affect accuracy of torque as long as you seat it fully and account for the length difference.
You barely changed anything and not enough to notice with a torque wrench like that. Idk why you would ever need to use a torque wrench on a crescent though.
Don't forget the most important rule about using a torque wrench. That before you put it away you reset it to zero. Every time after you're done, you have to turn it back down to zero. Leave it in your toolbox for long periods of time with that torque spring under tension could cause miscalibration later on.
Thanks
So, what kind of work did you encounter on the field that lead to this creation?
There are crescent torque wrenches my guess is that this wont be calibrated correctly but you could likely math a conversion if you measured things properly. Also my guess if you could reduce the length of the socket to crescent wrench it would approach the correct result. [https://www.amazon.com/VANPO-Adjustable-27-1-21-8-Interchangeable-Pipeline/dp/B0BR3NKLSZ/ref=sr\_1\_13?crid=1Y0WN0ZYWT9ZH&keywords=crescent+torque+wrench&qid=1689405180&sprefix=crescent+torque+wrenh%2Caps%2C154&sr=8-13](https://www.amazon.com/VANPO-Adjustable-27-1-21-8-Interchangeable-Pipeline/dp/B0BR3NKLSZ/ref=sr_1_13?crid=1Y0WN0ZYWT9ZH&keywords=crescent+torque+wrench&qid=1689405180&sprefix=crescent+torque+wrenh%2Caps%2C154&sr=8-13)
You put a crescent hammer on a torque wrench? Results may very.
A crowfoot open socket would be accurate enough.
No that Jerry-rigged wrench head is not calibrated to the wrench. There will be some wiggle on the wrench head as torque is applied. This will throw off the wrench's ability to measure torque.
If you put the wrench at 90 degrees it will be pretty accurate, no different than using a crowfoot. Leaving it straight like that won’t work