Re: [CR]Beefy looking "50 USA" marked chain tool?

Example: Production Builders:Tonard

Date: Fri, 5 Dec 2008 16:57:53 -0500
From: "Edward Albert" <>
Subject: Re: [CR]Beefy looking "50 USA" marked chain tool?
In-Reply-To: <>

Mark, definitely a chain tool. I have one just like it which I got from my father-in law who worked in a ball bearing factory in Philly. I have used it many times when normal-sized chain breakers don't fit. Cool! Edward Albert Chappaqua, New York, U.S.A.

On Fri, Dec 5, 2008 at 4:40 PM, <> wrote:
> Is this an on-topic tool? What is it used for, and who made it?
> <
> USA/<>
> >
> It came to me in a lot of all vintage bike parts and tools. When you
> squeeze the two handles together, the jaws open wider. What looks like a
> drive pin
> is much too large in diameter to be able to push out a traditional bicycle
> chain pin. The holder for the upper handle threads in and out with
> tension,
> and the upper handle is captured, but slides laterally as needed, like to
> avoid installed parts that are in the way. My pics are too dark, even
> after
> brightening them up, so you can't see that the teeth on the jaws look kind
> of
> like a rhombus or diamond shaped cable cutter.
> What is this thing? If you know, but it is decidedly off-topic, please
> email direct, and keep it off-list. Thanks for the help...
> Ciao,
> Mark Agree
> Southfield MI USA
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