OT: Good deal on knockout punch set

[dwight elvey]

>From: "Chuck Guzis" <cclist at sydex.com>
>
>On 19 Oct 2006 at 17:56, 9000 VAX wrote:
>
> > It happens that I am also active at the diyaudio forum. I had bad 
>experience
> > with those punchs and I started a thread there,
> > http://www.diyaudio.com/forums/showthread.php?s=&threadid=83528
>
>I can't vouch for them, I just noted the coupon and remembered the
>tiie-in.  I've got a set of Greenlees that's perhaps 40 years old and
>works just fine.
>
>Maybe these'd be okay with aluminum or very mild steel.  Sigh.
>Probably the same Chinese boron steel that makes bolts snap off if
>you look at 'em sideways.
>
>Cheers,
>Chuck
>

Hi
One thing to remember for punch health is to keep them lubricated.
This is especially true for aluminum. It tends to stick to surfaces.
It can cause the punch to skew and break. A light lub on the
blade works best while the threads should use a grease.
Cleaning the threads will also help to keep chips from getting
into the threads.
Dwight

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