5/16-14 and 3/8-10 tap

hax

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Will this work for cue shafts?


I bought a Cynergy shaft and it doesn't screw completely onto my Joss and other 5/16-14 butts. The 3/8-10 doesn't fit on my McDermott D-6 as well. I figure I need to run a tap through. They both stop about 1/2 way onto the threads.

I'm still looking for a 3/8-10 tap. Will be tapping via hand tool.
 
The Drill America taps work fine. I bought several of their kits which include the plug, tap, and bottom taps for each thread.
 
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Will this work for cue shafts?


I bought a Cynergy shaft and it doesn't screw completely onto my Joss and other 5/16-14 butts. The 3/8-10 doesn't fit on my McDermott D-6 as well. I figure I need to run a tap through. They both stop about 1/2 way onto the threads.

I'm still looking for a 3/8-10 tap. Will be tapping via hand tool.
Did you order the correct shaft for your pin? Does your butt have a 5/16" x 14 pin??
 
Did you order the correct shaft for your pin? Does your butt have a 5/16" x 14 pin??
Yes. Joss 2000 series model# 2020. 5/16-14
Yes, the other one is McDermott D series, D-6. 3/8-10.

I also have cues with 5/16-18 and 3/8-11. It's definitely not those.

My joint protectors screw on without issue.

Yes correct shaft models for both pins.
 
I think the larger pin comes 2 ways.3/8x10 and 3/8x10 mod. Not sure but the mod might need a larger drill would be the easiest way to explain it
 
I think the larger pin comes 2 ways.3/8x10 and 3/8x10 mod. Not sure but the mod might need a larger drill would be the easiest way to explain it

Yeah, there are 2 types. The minor diameter is different between them. The McDermott D-6 is not a modified 3/8-10. It’s a standard 3/8-10. The D-6 is a ~30 year old cue, and has the v-groove on the pin.
 
Yes. Joss 2000 series model# 2020. 5/16-14
Yes, the other one is McDermott D series, D-6. 3/8-10.

I also have cues with 5/16-18 and 3/8-11. It's definitely not those.

My joint protectors screw on without issue.

Yes correct shaft models for both pins.
I know that the D series McDermott pins look like the current McDermott pins, I have a couple of D series and even though they look like the current pins used by McDermott they are different. a new style shaft goes about half way onto a D series butt then gets hard to turn, I'm not sure which is a 3/8" x 10 and which one is something else.
 
they look like the current pins used by McDermott they are different

Perhaps, but I’m asking for tap recommendations and not trying to debate that 3/8-10 is not 3/8-10.
 

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Anyway, stuffed the shaft onto the McD with paraffin wax, guessing the grooves were not wide enough. Ordered the linked tap for the metal threaded 5/16-14. I’m guessing it’s the same issue, the grooves probably need more slop in them.
 
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