[Boatanchors] Boatanchors Digest, Vol 121, Issue 20

[james.liles at comcast.net]

Good afternoon Scott:

Irwin 10235 step drill is perfect but expensive.  Goes to 1 3/8 inch.

I also use it to drill mounting holes in lexan for electrolytic cap clusters.  Drill a two size hole one size for the cap and a size smaller as a stop then epoxy.  Beautiful job. 

Kindest regards Jim K9AXN 



Message: 2
Date: Fri, 14 Feb 2014 15:56:27 +0000 (UTC)
From: whitebear1122 at comcast.net
To: Boatanchors at mailman.qth.net
Subject: [Boatanchors] Chassis Mechanical Question
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<832093040.109886.1392393387055.JavaMail.root at sz0139a.emeryville.ca.mail.comcast.net>

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Greetings.? I have a mechanical question.? I am in the process of drilling , milling, and hole ?punching several chassis's fo r my HBR-13 receiver project.? I have all the holes punched except for three?octal socket holes.? I just discovered the octal ceramic sockets require a 1 1/4" hole and my Greenlee punch is 1 1/8".? My question is this:? Can I realistically file 1/16" all the way around with a rat tail type file and have the hole look clean.? I'm worried I'll start filing and it will end up looking like crap or become ?goofy shaped.? Is there some sanding barrel shaped attachment for a drill that would open the hole slightly and evenly? 



I wonder if anyone has a used Greenlee 1 1/4" inch punch for sale.? I've got a nice selection put together so far, including? 5/8", 3/4", 7/8", and 1 1/8".? I've never used a punch before this and they have been fabulous!? I did have to learn a lesson though.? I was so darn careful to be precise in my layout drawing, and transferring those hole dimensions to the chassis.? I used the recommended punch screw hole dimensions in the Greenlee instructions and then found out the holes didn't need to be that big, so the punch floated around too much and all the tube socket holes are slightly offset. Darn.?? Maybe it'll look better when I take the? masking tape off.?? :)? ? 



Thanks.? 73, Sc ott WA9WFA