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Drill Chuck Keys

Any standardisation - and published tables?

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IanT10/02/2011 10:26:38
1987 forum posts
212 photos
I have a small drill chuck - pre mounted on an MT2 taper - that unlike my other drill chucks wil take fairly small drill bits. It also seems to be a quality product. So it would normally be getting well used.
 
It is however missing the chuck key and search as I may at shows etc - I've never found one with the right tooth/hole combination.
 
Obviously 'Jacobs' drill chucks had different sized keys - but I've never seen their dimensions published. And did other manufacturers use Jacobs as a guide - or was it just suit themselves?
 
Any ideas!
 
Regards,
 
Ian T
David Clark 110/02/2011 11:09:37
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3357 forum posts
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10 articles
Hi There
I think Jacobs went by numbers so a Jacobs chuck no 31 would have a K31 key.
regards David
 
V8Eng10/02/2011 16:59:04
1696 forum posts
1 photos
Tried the Jacobs website?
 
 
Also I have seen multi fit 4 way keys available from various suppliers and DIY outlets.
 

Edited By V8Eng on 10/02/2011 17:05:19

IanT11/02/2011 09:55:04
1987 forum posts
212 photos
Thank you for the feedback - the 'Jacobs' website has some useful info on their product range & I now have a PDF that lists their keyed chuck sizes with holding range. The key for each chuck is also listed as being "Kxx" but no dimensions are given - perhaps unsuprisingly.
 
Can anyone point me to the main dimensions of these keys - i.e. key 'pitch' & peg diameter?
 
Regards,
 
Ian T

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