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<div class="moz-cite-prefix">Double tape, marker and use one of
those stepped drill bits until you have the right size hole. Use a
variable speed electric drill square on the surface and start from
zero rpm-slowly. Use some WD40 or machining oil for cooling the
metal.<br>
Kees Oudesluijs<br>
<br>
<br>
Op 12-4-2016 om 14:26 schreef Bob Spidell:<br>
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I don't think the punch would be any worse than the drill, and
without it the bit will likely skitter across the surface, doing
more damage than the punch. I think it's risky no matter how you
do it, but at least the tape gives you a sporting chance. What do
you need to drill, after painting?<br>
<br>
<br>
<div class="moz-cite-prefix">On 4/12/2016 4:44 AM, Michael MacLean
wrote:<br>
</div>
<blockquote
cite="mid:711464800.1579997.1460461464186.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div>
<div id="yui_3_16_0_ym19_1_1460461337215_8636">Have a just
finished BN2 body and have not drilled any holes in it yet.
Just don't want to screw up the paint job after costing so
much. I had not thought of using a puch to "start" the
hole. Wouldn't that crack the paint?</div>
<div id="yui_3_16_0_ym19_1_1460461337215_8635">Mike<br>
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<div id="yui_3_16_0_ym19_1_1460461337215_8618"><span></span></div>
<div class="qtdSeparateBR"><br>
<br>
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<div dir="ltr"> On Tuesday, April 12, 2016 4:26 AM, Bob
Spidell <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:bspidell@comcast.net"><bspidell@comcast.net></a>
wrote:<br>
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<div id="yiv3636857433">
<div> I suspect it would depend on type of
material, type of paint, condition of both, etc.
but have always assumed applying some kind of
tape--electrical, masking, etc.--over and
under--if the underneath is painted, too--the
area to be drilled is about all you can do to
prevent chipping. Make sure you use a sharp
bit, and a variable speed drill so you can start
slow to drill through the paint.<br>
<br>
Begs the question: do you use a punch to 'prime'
the hole--with or without tape--before drilling?<br>
<br>
Bob<br>
<br>
<div class="yiv3636857433yqt2347090592"
id="yiv3636857433yqt40397">
<div class="yiv3636857433moz-cite-prefix">On
4/12/2016 12:29 AM, Michael MacLean wrote:<br>
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<div
id="yiv3636857433yui_3_16_0_ym19_1_1460445982370_18849">What's
the best way to drill holes in a painted
surface?</div>
<div dir="ltr">Mike MacLean<br>
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