Small sockets from socket wrench sets work fine for limiting bit travel.
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Dr. Gerald N. Johnson
Sent: Thursday, September 30, 2010 12:51 PM
To: tentec@contesting.com
Subject: Re: [TenTec] Eagle Information
There are other ways to protect stuff inside. One is to use a short bit,
I keep a few screw machine bits that are only about 1-1/2" long on hand.
Another more versatile technique is to surround the drill bit with a
sleeve letting only enough stick out to go through the metal. Sleeve can
be brass or steel tubing, or a block of wood with a hole drilled through
it. The nicest technique is to use a Whitney-Jensen hand punch, model No
5 Jr if only 1-3/4" reach is needed and there's no flange or the model
XX if more reach and depth is needed. These were far more price
effective when I bought them than they are now. At least they don't drop
drillings in the radio. You can capture drillings with a pocket of duct
or masking tap under the hole.
73, Jerry, K0CQ
On 9/30/2010 11:34 AM, Rick - NJ0IP / DJ0IP wrote:
> CAREFULL !!! Long ago while drilling two holes in the back of my OM6 to
> insert a preselector, the bit went through a few windings of a 2,5 mh
choke.
> This was just a few days before departing for 4U1VIC for a contest. Of
> course Ten-Tec got a spare choke to me in 4 days... and I was in Munich,
> Germany. CQ Kenwood: (try 4 months).
>
> Lesson learned. I now use a small C-clamp and clamp a thin piece of
plywood
> to the inside of the chassis before drilling through.
>
> -----Original Message-----
>
> What's wrong with a ham drilling the back panel himself?
>
>
> -Stuart
> K5KVH
>
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