MadModder
The Shop => Tools => Topic started by: AndyB on September 17, 2011, 10:06:17 AM
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Hi all,
While going through my boxes of bits I have found 3 sets a external jaws for 3 jaw chucks.
They don't fit any of mine; how do I find out what they fit please? :bang:
They have got numbers on them:
29787 ( 1, 2 and 3 obviously)
28148
639
Does this mean anything in the grand scheme of things? Or am I just stuck with them until the day that I suddenly come across a chuck that fits? :doh:
Many thanks,
Andy
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that'll be only a serial number :(
All I can suggest is to measure the spiral pitch, width, and slot dimensions hope someone recognises them.
I have a couple of unknown chuck bodies that could do with jaws (if only to use on a ro-tab)
Bill
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Thanks Bill,
I will put measurements up when I get a moment.
It seems a shame to not be able to identify them when there are so many chucks going cheap on eBay with only internal jaws.
Andy
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2 appear to be identical;
pitch is 1/4" or 4TPI
From the base of the thread to the top of the jaw is 1.457"/37.07mm (any discrepancies in the conversion are due to me just pressing the mm function on my caliper)
width of jaw .620"/15.75mm
width of chuck slide .402" (side to side)
height of chuck slide .313"/7.9mm (base to top)
front to back 2.02"
The other;
pitch is 5/16"
height from base of thread 1.1"
width of chuck slide .291"
height of chuck slide .193"
front to back .754"
Any ideas gratefully received
Andy