[Shop-talk] Square Hole?

[John Niolon]

google corner mill   or watts drill


----- Original Message ----- 
From: "Ian McFetridge" <shop-talk2 at mcfetridge.org>
To: "Bob Nogueira" <bob at texmog.com>
Cc: "Shop Talk" <shop-talk at autox.team.net>
Sent: Sunday, October 14, 2012 8:33 PM
Subject: Re: [Shop-talk] Square Hole?


> If your tolerance are not too tight, you could do it like with wood: 
> drill
> with a slightly smaller bit and then file (maybe dremel) out to square
> size. (you knew this, but mentioning it for completeness)    If your
> tolerances are tight, I think you may need to enlist the help of a machine
> shop with something like a water-jet cutter.   A press and punch will do
> smaller gauge material, but I don't think it could do 1/2" brass.
>
> - Ian
>
> On Sun, Oct 14, 2012 at 8:54 PM, Bob Nogueira <bob at texmog.com> wrote:
>
>>     I know how to do it in wood but not metal,  How can I make a 8mm 
>> square
>> hole in 1/2 inch thick brass?
>> Thanks  for any help.
>> Bob
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