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Re: [TowerTalk] Drill bits

To: Charlie Gallo <>, "Tower and HF antenna construction topics." <>
Subject: Re: [TowerTalk] Drill bits
From: "Roger (K8RI)" <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Thu, 25 Mar 2010 23:20:20 -0400
List-post: <">>

Charlie Gallo wrote:
> On 3/25/2010 wrote:
>> After breaking too many 6-32 and 8-32 taps in vhf/uhf cavity amplifier
>> aluminum parts, I discovered a product named "Tap Magic for Aluminum".
> Tap Magic for Aluminum is excellent - it's my choice #2 after Alumtap 
> original.  BTW Tap Magic (without the 'for aluminum') is my choice for most 
> other metals
I use Tap Magic for a cutting fluid and drill bit lube... along with 
> A trivia for you - 6-32 taps are actually one of the easier taps to break.  
> The issue is that of the standard thread series (UNC/UNF) they have the worst 
> major/minor diameter ratio, which makes them VERY easy to break.  It's 
> actually harder to break a 4-40 tap
I dotknow bout that: ...I seem to have a knack fro breaking 4-40's<:-))


Roger (K8RI)

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