Jaws for a Rockwell chuck?

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Subject Author Date
Jaws for a Rockwell chuck? Bill Marrs 05-02-2006
Posted by Bill Marrs on May 2, 2006, 5:42 pm
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Got a little 5 inch 3 jaw chuck. Marked "Rockwell, Made in USA, 25-870"

All it came with is a set of outside jaws, would like to get a standard set.
Anyone have any good ideas? Googling didn't turn up much, and I'm
not finding any in MSC/J&L/Enco.

Thanks,

Bill



Posted by on May 2, 2006, 6:39 pm
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Bill Marrs wrote:
> Got a little 5 inch 3 jaw chuck. Marked "Rockwell, Made in USA, 25-870"
>
> All it came with is a set of outside jaws, would like to get a standard set.
> Anyone have any good ideas? Googling didn't turn up much, and I'm
> not finding any in MSC/J&L/Enco.

The only way you are going to find them is to match them up at a used
machinery dealer or hobby show. I have about 50 sets that I don't know
what fit but I can't afford to do measurement survey including backside
thread pitch and hope I find a $25.00 sized sale. You are not going to
find them in any catalog though it might help to determine who made the
chuck. Rockwell surely didn't. Leigh @MarMachine


Posted by Dave Hinz on May 3, 2006, 10:37 am
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> Got a little 5 inch 3 jaw chuck. Marked "Rockwell, Made in USA, 25-870"
>
> All it came with is a set of outside jaws, would like to get a standard set.
> Anyone have any good ideas? Googling didn't turn up much, and I'm
> not finding any in MSC/J&L/Enco.

Bill,

I think I have that same chuck, and I don't use it because I also have
an 8" 3-jaw for my Rockwell. I'll check tonight, pretty sure I have all
the jaws for it. If you don't see email tonight send me a reminder, my
address is real.


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