Thread: Cardinal Mk II Chuck Key
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19-12-2011 #1
Good day all.
I am trying to find a new key for my chuck, but I don't know where to start.
All the standard chuck keys I have are way to small for this chuck.
Here are all the details stamped on the chuck.
Cardinal Mk II
Pat No 651588
D
1/2"
No33 Taper
CA12
Thanks for your time."If first you don't succeed, redefine success"
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19-12-2011 #2
Measure the size of the (probably) square hole in the chuck for the key, then you should be able to find one to fit. If not I can make one.
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19-12-2011 #3
This may help? The chap modified a K4 Jacobs chuck key for his MT3 tapered drill chuck. Looking at though you may get away with a 16mm chuck key?
http://www.practicalmachinist.com/vb...-3-4-a-172002/If the nagging gets really bad......Get a bigger shed:naughty:
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19-12-2011 #4
Or contact these for the spec, the manufactured the cardinal many years ago :tup:
BROOKE CUTTING TOOLS (UK) LTD
- ALL ENQUIRIES-MAIN SWITCHBOARD, HELLABY IND EST, DENBY WY, HELLABY, ROTHERHAM
S66 8HU ROTHERHAM , SOUTH YORKSHIRE
Phone : 01709 314500
Fax : 01709 314501
E-mail : Send messagewww.brooke.co.uk
If the nagging gets really bad......Get a bigger shed:naughty:
- ALL ENQUIRIES-MAIN SWITCHBOARD, HELLABY IND EST, DENBY WY, HELLABY, ROTHERHAM
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20-12-2011 #5
I should have noticed from the original post that it's a drill chuck, not a lathe chuck .
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21-12-2011 #6
I have a 1/2" cardinal chuck, it's physically the same size as the 1/2" jacobs chucks
I have and uses the same key. I think the jacobs are type 34. I will write down the key
number and measure the diameter tomorrow.
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22-12-2011 #7
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)."If first you don't succeed, redefine success"
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22-12-2011 #8
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.
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21-01-2017 #9
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
Last edited by Cregg; 22-01-2017 at 06:19 PM. Reason: add photo
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