[Amps] Hole punches

[wb2aio at yahoo.com]

Colin, 
Don't give up on your hole saw just yet. You may be able add another layer against the piece of aluminum you wish to enlarge or even a piece of thin plywood and let that be your new guide for the saw to engage with and allow you to drill out your new hole. Like a sandwich of the two pieces. 
Have used this trick a few times over the years for such a problem. 
73,Kathy w2nk

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Message: 6
Date: Sun, 10 Oct 2021 19:25:53 +0000
From: Colin Lamb <k7fm at teleport.com>
Cc: Amplifier Reflector <Amps at contesting.com>
Subject: Re: [Amps] Hole punches
Message-ID: <a31cef2c-ce6a-f2af-657f-81a412a522fa at teleport.com>
Content-Type: text/plain; charset=utf-8

I recently had a transmitter that had holes cut for some capacitors.? I needed larger holes.? But a hole saw  cannot easily cut a larger hole, so I needed a hole punch.? I found some Temco hole punches on eBay for $59.95, which included free shipping.? The are 1/2", 3/4", 1" and 1.25".? These are electrical conduit sizes.? And they come with all the hardware.? They are very well built and are the sizes used for electric boxes.? They have more sizes, for more money.? They normally are pretty expensive.
?
Colin Lamb? K7FM?
?
?


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End of Amps Digest, Vol 226, Issue 4
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