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Morse taper shanks.

G

Gil Johnson

Joined
Aug 14, 2012
Messages
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Location
Washington
Hello all I was wondering if anyone had a good source for morse tapper shanks. I was givin two wonderful German keyless drill chucks and would love to be able to make some holes and more with them on my lathe.

My lathe has a #2 MT and the German chucks are marked as 100 J2, and 130 J2. I still being some what new to most of this am guessing that I will need two different shanks for these both sized to fit my tail stock. Unless the J2 indicates the same female tapper on them and the 100 and 130 have nothing to do with the tapper sizes.

Thanks for all the advice,
Gil
 
No they have a smooth tappered ID. So I was hoping the J2 and or the numbers indicated what tapper I need on the chuck side of the shank.
 
J suggests a Jacobs taper. http://www.pretooling.com.au/media/jacobs/taper-dimensions.pdf Can't figure the relevance of the 100 and 130. Check with your neighbors who have drill presses and see who might have a Jacobs #2 for a test fit. If it fits, you can certainly order a J2 to MT2. Get the self-ejecting kind with the extra tang, as in the picture. I have one for my lathe.
 
CDCO Machinery has them. CDCOtools. com
Look under the "all kinds of die makers tools" category, then "drills and shanks".
 
Gil Johnson said:
Nice only $5 do u happen to know if those J2 MT2 shanks r self ejecting I see the extra bit of unmachined surface at the tail end of it.
Click to expand...

Self ejecting is a function of your lathe and the length of the taper.
Lathe mechanism vary but most have a tailstock ram that advances on a screw. When it is withdrawn the screw is cranked in and the end of the screw contacts the end of the taper pushing it out. If the taper is too short the screw does not touch the taper when it is turned s far as it will go and the pr is not ejected by he screw.

Work safe
Al
 
Sorry I should have clarified, yes my tail stock self ejects. The question I should have asked is how do I know if the shank has a long enough tail to function properly and self eject.
 
Gil Johnson said:
Sorry I should have clarified, yes my tail stock self ejects. The question I should have asked is how do I know if the shank has a long enough tail to function properly and self eject.
Click to expand...

You can measure the length of a taper that ejects from your lathe and use that as a guide. However that is no guarantee as the new taper may stick out further.
There is some spot on the taper that matches the diameter of the opening of your tailstock ram. That is as far in as that taper will go.

Realistically unless it is a short taper it will probably eject.
I probably have 30 centers and chucks with tapers. Only one which came from a cheap mini lathe does not eject from my lathes.


Turn safe
Al
 
Gil Johnson said:
Nice only $5 do u happen to know if those J2 MT2 shanks r self ejecting I see the extra bit of unmachined surface at the tail end of it.
Click to expand...
Most everything I stick on my lathe proves to be self-ejecting at one time or another.😀 But I'm wearing a face mask and learning.
 
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