Maybe a silly question, but wouldn't you be better off just using an AN-6 (3/8) fastener? The holes would already be oversized about .5mm (around .020"). Then you wouldn't have to drill.
Just a thought. Matt Serge VIDAL <serge.vi...@sagem.com> wrote: This is one is for steel specialists: My taildragger KR2 main landing gear legs are made of spring steel. They hold to the gear brackets by 4 bolts each. The bolts are metric, 10mm diameter. I would like to change that for the nearest AN size. That would be an AN7, which is 7/16", that is 11.11mm. So I would have to enlarge the holes. Now, I don't know much about steel, but I know by experience that it is very hard to drill through these legs, since 3 years ago, I tried to drill a couple of tiny holes to hold some brackets for the brakes lines, and I gave up. Questions, then: what are my chances to succeed, what kind of drill bits should I use, and what is the correct drilling technique? Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html ------------------------------------------------- Matthew Elder Orangeburg, SC http://www.infinigral.com/melder My Airplane Project: http://www.infinigral.com/melder/flying/KR1/
