[Elecraft] K2 - Countersunk Screws?

[d.cutter at ntlworld.com]

Countersinking in thin sheet metal generally gives poor results.

David
G3UNA

> 
> From: "Ken Kopp" <k0pp at acninc.net>
> Date: 2007/04/30 Mon PM 12:48:13 BST
> To: <w1ujr at mac.com>,  <elecraft at mailman.qth.net>
> Subject: [Elecraft] K2 - Countersunk Screws?
> 
> Bruce,
> 
> Use a drill bit's tip as a countersink tool?  Oh dear!
> 
> There are "real" countersink tools available that will
> produce nice, even countersinking.  Inquire at a 
> machine-tool supplier.  They come in a variety of
> sizes amd have a smooth conical tip with a single
> round hole forming the cutting surface.  The drill bit 
> idea, unless done very carefully by hand, is certain to 
> produce "three-cornered" countersinking.
> 
> I've thought of using flat or oval-head SS screws on 
> my K2 but I'd first want to be certain the panels are 
> thick enough to allow proper-depth countersinking.
> 
> 73! Ken Kopp - K0PP
> k0pp at arrl.net
> 
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