Author: "Michael E Fox \(N6MEF\)" <n6mef@mefox.org>
Date: Wed, 15 Oct 2008 13:01:24 -0700
I'm looking for what's called a "double-D" punch that is the correct size for N-type connectors. This will be used to punch holes in bulkheads for installing either PolyPhaser DSXL lightening arresto
I normally use Greenlee "knockout punches". The latest style split the piece knocked out into two haves that look like the letter "D", but I've never seen them called "double D". OTOH material for bu
An annular cutter is quicker and smoother... http://www.blairequipment.com/Rotabroach_Cutters/rota_cutters.html A small fractional set can be had on Epay for ~$70...very handy shop tool! Mike K4EAR _
How do you cut a double D hole with one of those? Jim, AF6O _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting
I had forgotten about those. They do an excellent job, work better than a hole saw, give a professional looking cut even when used with a hand drill (if the arbor fits the hole, or is self drilling)
--Original Message-- Since you can get D and DD punches for BNC and TNC, which are smaller, I'm surprised you can't find one. However, I don't do punching any more... I send my work to http://www.fro
Author: "Michael E Fox \(N6MEF\)" <n6mef@mefox.org>
Date: Wed, 15 Oct 2008 14:59:52 -0700
Wow. I'd never heard of those. Looks pretty cool. Thanks for the link. I can use that for another project. For this application, however, the hole isn't round. A double-D punch produces a hole that i
I assume you're looking for a punch that is .641 diameter, with 0.546 across the flats (that's what's in the Amphenol catalog).. Indeed, Greenlee doesn't appear to have ones small enough (at least, a
Author: "Michael E Fox \(N6MEF\)" <n6mef@mefox.org>
Date: Wed, 15 Oct 2008 16:12:14 -0700
Close but probably too big. The Amphenol drawing specifies a .634 diameter with .539 across the flats (Amphenol part # 83-1F) The PolyPhaser drawing specifies a .630 diameter with .535 across the fla
If you are using them for Polyphasers you really don't need the flats. I've been using them for years and never bothered. The Nut and washer will hold them securely and I've never had one turn of com
You can also use some adhesive threadlocker (e.g. Loctite) to keep them snugged up to the panel. It also sort of depends on how much connecting and disconnecting you're doing. _______________________