[TowerTalk] Drill bits

[Roger (K8RI)]

Charlie Gallo wrote:
> On 3/25/2010 TexasRF at aol.com 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 
Kerosene
> 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<:-))


73

Roger (K8RI)