Ok healing shaft in 3/8x10 modified joint

Dynaudio

Dynaudio

Registered
Hey guys. I bought a ok healing shaft that is 3/8x10 but my cue’s joint is 3/8x10 modified. It screws about half way in and then stops. Do you have any idea why it does not go all the way in?

Thanks
 
I’m not familiar with the shaft you mention but a reoccurring issue with 3/8x10 shafts is the inner diameter. Typical fix is just a tap. However, that’s easier said than done for most of us.


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Scratch85 said:
I’m not familiar with the shaft you mention but a reoccurring issue with 3/8x10 shafts is the inner diameter. Typical fix is just a tap. However, that’s easier said than done for most of us.


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Click to expand...
this is accurate, and it is easy, had to tap my revo to fit my Carmeli cues
 
Here is a good description of the two joints and the compatibility issues and solutions.


Basically a shaft with a modified tap will fit on a standard 3-8 10, but a standard 3-8 10 shaft will NOT fit on a modified one.

Talk to a trusted local cue smith and they can probably re tap the shaft for you.
 
you need to tap it and it's pretty easy to do.
Just buy the tap and screw it in, use a locking pliers to grip the tap.
screw it in and out a few times and let all the debris out and you're good to go.
 
3/8-10 shaft thread and 3/8-10 mod pin. Shouldn’t need to be tapped, just bore out the threads to fit the inner diameter of the pin.

I’d also confirm the shaft is really a 3/8-10 if you haven’t already.
 
SSDiver2112 said:
3/8-10 shaft thread and 3/8-10 mod pin. Shouldn’t need to be tapped, just bore out the threads to fit the inner diameter of the pin.

I’d also confirm the shaft is really a 3/8-10 if you haven’t already.
Click to expand...

“Bore out the threads”. How does one do that?
 
In theory, you could use a drill bit with the correct size to bore out the inner thread, but that is not the correct way it should be done
 
skor said:
you need to tap it and it's pretty easy to do.
Just buy the tap and screw it in, use a locking pliers to grip the tap.
screw it in and out a few times and let all the debris out and you're good to go.
Click to expand...
Just do this, I did it with just a tap and my hands; no pliers, no lathe. Did this years ago and have not had an issue
 
SSDiver2112 said:
3/8-10 shaft thread and 3/8-10 mod pin. Shouldn’t need to be tapped, just bore out the threads to fit the inner diameter of the pin.

I’d also confirm the shaft is really a 3/8-10 if you haven’t already.
Click to expand...
Yep, I've had to get this done to several shafts to fit a 3/8x10 modified. I'm lucky enough to have a couple cue makers and a repair guy near me to take care of this.
 
Couldnt you get away with a drill bit instead of a boring bar as long as it goes in straight. I assume a 5/16 bit or better wont flex much
 
A .312 reamer would be better, but rigging up a drill press to dead center drill down into a shaft is not probable. Not impossible, but not really easy to do either.
 
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