[TowerTalk] Drill bits

[Gary Schafer]

Lard or kerosene for aluminum, cutting oil for steel.

73
Gary k4FMX

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of johne tds.net
> Sent: Wednesday, March 24, 2010 11:50 AM
> To: Tower and HF antenna construction topics.
> Subject: Re: [TowerTalk] Drill bits
> 
> 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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