[Elecraft] Re: Drills

[Tom Hammond]

Hi Jerry:

Thanks Jerry. And you are quite correct, I've yet to find a local hardware 
store which offers high-speed steel bits smaller than #60.

And, I found out the hard way, that trying to use a #69 solid CARBIDE 
(read, PC board) drill bit is definitely NOT the way to go. Solid carbide 
bits are terribly fragile and if you break one of those off inside the tip 
(and I'll guarantee you that you WILL if you use it), you'll NEVER 
successfully get it back out.

I've found that regular cleaning, e.g. after each time I use it, allows me 
to keep my Hakko 808 nice 'n clean. But if I slack off and don't clean it 
for several daily uses, I'll wind up having to drill things out. So, the 
rule of the day is to clean it out each day when you're finished using it. 
I also flow a small amount of fresh solder into the hole in the tip after 
I've unplugged it, but before it's had a chance to cool off. This keeps the 
inside of the tip tinned and helps it to remain clean.

73,

Tom   N0SS


wa2dkg@juno.com wrote:
>Tom Hammond wrote:
>
>"You may well be able to fine a 'wire gauge' high carbon steel drill bit
>which will allow you to drill out the crud and to return the tip to more
>normal use."
>
>A source for these small drills is a machine tool supplier...You probable
>NOT be able to buy drills smaller than #60 at your local Sears, Home
>Depot, or hardware store...The tips do carbon up on the inside with burnt
>enamel and need to be cleaned out occasionally