smalltruckbigcid
1/2 ton status
I used a torque adapter today in a really tight spot. That thing was handy as hell. May have to buy some for me. They only come in 4 sizes though. How come Matco guy?
CK5
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Having tool lust
- Thread starter smalltruckbigcid
- Start date
Randy92782
1 ton status
i don't even see how that works 
77crewcab
1/2 ton status
Each one comes off the holer and attaches to your torque wrench to make a box end torque wrench.
Heh heh, he said "holer."
Seriously, though, it looks to me like having the point of torque turn, i.e. the wrench *away* from the center of the fastener would change the lever length and torque reading.
I suppose that the lever length isn't enough to throw off the torque reading?
-- A
Seriously, though, it looks to me like having the point of torque turn, i.e. the wrench *away* from the center of the fastener would change the lever length and torque reading.
I suppose that the lever length isn't enough to throw off the torque reading?
-- A
Randy92782
1 ton status
that's what i was thinking. It has to change one way IMO
Just didn't know what to say really
smalltruckbigcid
1/2 ton status
It does change the torque but where these are very useful is getting in behind things to loosen bolts
77crewcab
1/2 ton status
My shop has a calibrated torque wrench checker. You remove the adapter from the holder, put it on the torque wrench then go to the wrench checker and dial in the torque to get what you want.
sled_dog
1 ton status
torque wrenches(good ones) come with a instructions to figure out the difference you need to factor in for things like torque adapters.
Why only 4 sizes? I have already given Matco no end of **** for that fact... And believe me, myself and they have exhausted all our chances to come up with other sizes, can't find them. I have a guy who REALLY REALLY REALLY wants a 14mm one. Has a job it is perfect for, would save him big headaches. Cannot come up with it. Snap-On, Mac, Matco, none of us have a 14mm one...
Why only 4 sizes? I have already given Matco no end of **** for that fact... And believe me, myself and they have exhausted all our chances to come up with other sizes, can't find them. I have a guy who REALLY REALLY REALLY wants a 14mm one. Has a job it is perfect for, would save him big headaches. Cannot come up with it. Snap-On, Mac, Matco, none of us have a 14mm one...
Confedneck79K30
3/4 ton status
4 sizes? how lame.... i sell them in 12pt and spline in over 30 sizes total :X
no 14mm is kinda lame... i have customers at a mosquito control department of the county that make their own sometimes for helicopters...
no 14mm is kinda lame... i have customers at a mosquito control department of the county that make their own sometimes for helicopters...
sled_dog
1 ton status
22 including spline and standard, but only 4 metric. if memory serves thats the same amount Snap-On sells in metric isn't it? don't have a catalog on hand, keep that on the truck.
smalltruckbigcid
1/2 ton status
sleddy PM coming
Confedneck79K30
3/4 ton status
i thought 4 sizes sounded kinda slim....
Ah, okay ... I mean, for a short lever length and higher torque settings, it prolly wouldn't matter much, but when accuracy counts...
-- A
Here is the formula: M1 = M2 x L1 / L2
Where:
M1 is the torque setting of the wrench.
M2 is the actual torque applied to the nut
L1 is the normal length of the wrench
L2 is the extended length of the wrench (Length of wrench + length of adapter)
Example:
M1=torque wrench setting ?
M2=80 FT-LBS (Desired touque)
L1=18" (Legnth of torque wrench)
L2=22" (Total length of wrench with 4 inch extension added to wrench)
80x18/22=65.45 M1 therefore = 65.45; In otherwords if you want to torque a fastener to 80 FT-LBS using an 18 inch torque wrench with a 4 inch torque extender you will set the wrench to 65.45 FT-LBS
Where:
M1 is the torque setting of the wrench.
M2 is the actual torque applied to the nut
L1 is the normal length of the wrench
L2 is the extended length of the wrench (Length of wrench + length of adapter)
Example:
M1=torque wrench setting ?
M2=80 FT-LBS (Desired touque)
L1=18" (Legnth of torque wrench)
L2=22" (Total length of wrench with 4 inch extension added to wrench)
80x18/22=65.45 M1 therefore = 65.45; In otherwords if you want to torque a fastener to 80 FT-LBS using an 18 inch torque wrench with a 4 inch torque extender you will set the wrench to 65.45 FT-LBS
Or use this:
http://www.belknaptools.com/extcalc.asp
http://www.belknaptools.com/extcalc.asp
sled_dog
1 ton status
All our sets of torque adapters come with that formula on a nice heavy piece of paper as well as a diagram explaining the parts of it. Handy information.
I built a set of 10 metrics just like those about 10 years ago. Did not look as nice but the guy loved them. If he had to pay for my time, he would not have bought them. Took too long. But he still uses them today.
sled_dog
1 ton status
someone really really needs to make a 14mm. mass production, lifetime warranty I mean. Exhausted all my resources trying to come up with one.
It's not a huge change, but it does change the effective length of the wrench, therefore the applied torque changes as well. I did the math a couple times just for grins in A&P school, and found in the particular scenario I used that the applied TQ changed by 2-point-something ft/lbs.
Most aircraft mechanics I know call those "dogbones", and would look at you funny if you called it a "torque adapter".
I do my damndest to keep a 90* angle between the wrench and the dogbone, which keeps the eff. length of the wrench the same so I don't have to bust out the calculator.
