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266099 Micah Salb <msalb@l...> 2018‑07‑12 Sharpening Pinch Dogs?
Folks:

Does anyone know whether pinch dogs need to be sharpened; if so, how you know
whether they need sharpening; and how to sharpen them?

Micah Salb
Washington, DC
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266102 Ed Minch <ruby1638@a...> 2018‑07‑12 Re: Sharpening Pinch Dogs?
Drive enough of them into purpleheart and you will want them sharp.  Because
they are made to draw two pieces together, they are (IME) sharpened on the
inside only.  Extreme pointyness (a la awl) not necessary


Ed Minch
266103 Charles Driggs 2018‑07‑12 Re: Sharpening Pinch Dogs?
I have about a dozen of them in a variety of sizes, and if used in hardwood they
do get a little dull.  As Ed says, sharpen on the inside.  I have done it with a
file — they are soft steel or iron, and files work just fine for me.  Some of
them were ‘sprung’ when I found them, i.e., spread apart at the tips, and gently
squeezing them back towards having the outside of the legs parallel was easily
done with a vise.  These are no relation to precision tools, so precise methods
aren’t needed.

Charlie
266104 Kirk Eppler <eppler.kirk@g...> 2018‑07‑12 Re: Sharpening Pinch Dogs?
I agree with Charlie's perspective.  They don't need to be Scary Sharp, but
good enough to penetrate well.  Schwarz wrote a blog post about stripping
off zinc coating on new ones, just go keep them in better.

Mine were dull when I got them, and they worked much better after
sharpening.

On Thu, Jul 12, 2018 at 3:10 PM, Charles Driggs via OldTools <
oldtools@s...> wrote:

> I have about a dozen of them in a variety of sizes, and if used in
> hardwood they do get a little dull.  As Ed says, sharpen on the inside.  I
> have done it with a file — they are soft steel or iron, and files work just
> fine for me.  Some of them were ‘sprung’ when I found them, i.e., spread
> apart at the tips, and gently squeezing them back towards having the
> outside of the legs parallel was easily done with a vise.  These are no
> relation to precision tools, so precise methods aren’t needed.
>
>
> > On Jul 12, 2018, at 5:01 PM, Micah Salb  wrote:
>
> > Does anyone know whether pinch dogs need to be sharpened; if so, how you
> know whether they need sharpening; and how to sharpen them?
>
>

-- 
Kirk Eppler in Half Moon Bay, CA
266105 Mark Pfeifer 2018‑07‑12 Re: Sharpening Pinch Dogs?
I use them all the time and have never sharpened one..... but defer to those who
have more experience.

Sent from my iPhone
266106 Claudio DeLorenzi <admin@d...> 2018‑07‑12 Re: Sharpening Pinch Dogs?
I thought if they were too sharp, they promoted splitting?
Claudio
266107 Ed Minch <ruby1638@a...> 2018‑07‑13 Re: Sharpening Pinch Dogs?
I can’t answer that as I have on used them in big stuff - 3-6” thick

Ed Minch
266109 Charles Driggs 2018‑07‑14 Re: Sharpening Pinch Dogs?
Could be.  I just clean them up a bit when they look a little too dull to
penetrate, much less hold.  I’d be stunned if the tips could cut me, unlike
certain other tools.

Charlie

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