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Replacing JT33 chuck, can't find chuck with the right collar size of 1" threads

lpr75

Plastic
Joined
Mar 15, 2022
I am replacing a frozen chuck on a drill press that I'm restoring. It's a JT33 taper, with a 1" thread for the collar (these machines are not my area of expertise, sorry if any of my terminology is incorrect/confusing). I bought a new chuck online (another version of this one) that is a JT33, but upon receiving it I found out the thread on the collar is 3/4". I don't see anywhere online where the size of the collar threads is specified. The chuck fit's otherwise, just won't screw into the spindle.

My questions are as follows:
-anyone know of a chuck that will fit my application?
-if not a new chuck, can I remove the collar and the small piece of tube that connects to the chuck (sorry, don't know the name of this part) and swap them out? I know there are removal wedges, I've not seen one for a JT33 anywhere
-will some kind of adapter for the 3/4" to 1" threads suffice, if it can be found?
-am I incorrect thinking it's a JT33, and it's some other size? I have calipers somewhere that I can use to measure the arbor size, if needed.

Thanks so much for any help.
 

PackardV8

Hot Rolled
Joined
Jun 4, 2006
Location
Spokane, WA
The professionals here have little interest in restoring a homeowner drill press. You'll get more help and specificity over on the Old Woodworking Machine forum. Old Woodworking Machines - Index page Just be aware when joining they have a three-page list of forum don'ts; the rants here would be banned there forthwith.

jack vines
 








 
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