[quote=erice]sorry not much help to you now, but maybe to future soft-spot repairmen
ideally of course you don't try and drill 50? 3mm deep holes with a 40mm long drill, relying on "feel" to not go through the both skins, it just doesn't work like that
there is a tool specially made for the job and it's called a drill-stop
$3 for a set apparently
[url]http://www.google.com/products/catalog?q=drill+stop&hl=en&safe=off&prmd=imvns&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1280&bih=939&um=1&ie=UTF-8&tbm=shop&cid=13753113575471812848&sa=X&ei=BSjsT67XI42OmQWr2JjRAg&ved=0CHgQ8wIwAA[/url]
or if that's too rich you can get the same effect by putting about 30?wraps of masking tape carefully around the drill, 3mm? from the tip<!-- editby --><em>Edited by erice on Jun 28, 2012 - 04:07 AM.</em><!-- end editby --> [/quote]
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