Date: Wed, 24 Mar 2010 13:25:33 -0400
From: "Gary Schafer" <garyschafer@comcast.net>
Subject: Re: [TowerTalk] Drill bits
Lard or kerosene for aluminum, cutting oil for steel.
73
Gary k4FMX
## I use this stuff called 'A-9' for aluminum, comes
in a green tin.. and comes out green. It's made
for AL only. Every metal and industrial supply place
in town carries it.
## The other stuff I use is called ...'rapid tap'. and used
for any precise machining, including tapping threads,
and works on AL, steel, brass, etc. I use it when
drilling steel.
## bottom line is, any lubricant is better than none.
With 140 holes, I'd still use a punch.
Jim VE7RF
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