[TowerTalk] Drill bits
johne tds.net
johne at tds.net
Wed Mar 24 08:49:58 PDT 2010
Try the gold color bit ( Titanium nitride coated twist bit) and animal
fat or lard is the best lub to use.
de John K0CQW
On Tue, Mar 23, 2010 at 11:11 PM, Guy Molinari <guy_molinari at hotmail.com> wrote:
>
> Hi all,
>
> I don't know why this is so hard. I'm trying to drill out some hole on some 3/8" steel plates that I'm going to have galvanized. I bought a 13/32" drill bit and it worked great for about 10 holes or so. The problem is that I have about 140 more to go. Any recommendations on a good quality drill bit?
>
>
>
> 73,
>
> Guy, N7ZG
>
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