Cardinal Mk II Chuck Key

**Mad Professor** · 22-12-2011

graffian: did you have any luck finding out any details regarding the key?

The chuck pilot hole seems to be 5/16 [0.3125"] (7.9375mm).

**graffian** · 22-12-2011

Yes I had a look, I couldn't find the cardinal chuck but the key I use on jacobs 34 chucks came with the
cardinal chuck. The key has a 5/16 pin and 11 teeth. The key I have is a jacobs and just has
a 3 on it, but it goes with 34 chucks so it shouldn't be a problem finding one.

The next size down key I have, which is for jacobs 32 chucks, has a 1/4 pin and 9 teeth.
The next size has a .375pin and 12 teeth, that is for the jacobs 36 chuck.

**Cregg** · 21-01-2017

New to this forum so somebody may be able to help. My primary interest is Woodturning but I have a Myford ml 7 as well. I recently got a Meddings MB4 mark 2 drill , very dirty and uncared for but all parts in good order. Everything now back 'as new' except chuck.

It had a Cardinal mark 2 chuck which needs to be disassembled and cleaned. Does anyone have any idea how to do this. On the back of the chuck there is a series of small holes in a circle. Not sure whether it can be 'drifted' apart or if there are threads in there somewhere.
Here are some photos