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Date:         Wed, 27 Jun 2001 02:13:35 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Heli-Coil tap and drill size needed as soon as poss
Comments: To: John.Clemens.jbclem@EARTHLINK.NET
In-Reply-To:  <5.1.0.14.0.20010626223042.009f1dd0@popd.ix.netcom.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 01:52 AM 6/27/2001, Austin wrote: >John - 'Q' is a legitimate drill size, 0.332 inches diameter (ie, just a >bit bigger than a 5/16" drill, which is a decimal 0.3125 inches >diameter). Heli-Coils use size specific taps which are *not* standard

American drill sizes half-inch and under include 1/16-1/2 by 64ths, then numbers 0 (a bit under 1/4) to 80 (a bit under 0.02), then letters A (close to 1/4) to Z (close to 1/2).

The metric folks tend to fall on the floor in hysterics when they think about this... <g>

david

David Beierl - Providence, RI http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation"


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