Wes wrote:
Is there any standards for lathe chuck keys? I measured my two chucks and
one is .382" sq and the other .460" sq.
Nope. I even have an old Union chuck that has a male pinion on the chuck,
so the key has to have a female recess in it. Of course, it came
without a key (on eBay). So, I had to mill it into the end of a piece
of bar.

..382" sounds like a little bit of clearance short of 10 mm.
..460 is an odd size, maybe for a .475" recess.

Jon

Is there any standards for lathe chuck keys? I measured my two chucks and
one is .382" sq and the other .460" sq.

Wes

Wes wrote:

Is there any standards for lathe chuck keys? Â*I measured my two chucks and
one is .382" sq and the other .460" sq.

Sure! 6, 8, 9, 10, 11, 12, 14, 17mm
The rest is non-standard.

Ni-SCNR-ck

Wes wrote:

Is there any standards for lathe chuck keys?


LOL



thats what milling machines are for.


I measured my two chucks and
one is .382" sq and the other .460" sq.

Wes




I keep any chuck handle I see that is on the scrap pile so if I need a
particular size I can just mill the end to fit.



John

Sounds like 3/8 and 7/16 with a little slop to me.

Pete Stanaitis

Wes wrote:
Is there any standards for lathe chuck keys? I measured my two chucks and
one is .382" sq and the other .460" sq.

Wes