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From: "Jim Wilkins" <muratlanne@gmail.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: yardsalin' again
Date: Fri, 6 Sep 2024 20:58:59 -0400
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"David Billington"  wrote in message news:vbfvlm$vmm4$1@dont-email.me...

On 06/09/2024 20:44, Snag wrote:
> This time the Big Score is a 3 inch 3 jaw chuck on a 5c collet back plate 
> with 3 sets of jaw (all fit) for the princely sum of 10 bucks . A piece of 
> material for a 1 1/2-8 back plate will probably cost more than the chuck . 
> Also got a couple of open/reversible ratchet shorty wrenches for a buck 
> each .

I bought one of those and it has proved fairly handy but I found as
supplied it had quite a bit of run-out and the chuck wasn't square. I
separated the chuck from the 5C backplate and found that was badly
machined but once correctly machined it now runs quite true for a cheap
chuck.

-------------------------------------

I have one as well, in a wooden box, likely from Enco. It's not my first 
choice on the lathe but it's very handy for machining indexed wrench flats 
etc on turned parts. A chuck small enough to pass over the carriage allows 
facing both sides of gear or pulley blanks held by the hole ID, and (like 
collets) bringing the tailstock close to the chuck for accurate center 
drilling.