OK guys and girls drilling for safety wire is easy. The easiest way is to buy pre-drilled bolts. When racing motorcycles I needed to drill both bolts and nuts, lots of them. I developed a method that worked well. With the bolts in place mark corners you want to wire to. I then use a slightly larger drill to drill straight in within 1/16 of the corner. Flip the hex to the side opposite. Again drill a hole about .02 past the diameter of the starter drill. The lips of the starter drill are at an angle that you can use a small drill to drill into the corner of the bolt. Again flip the bolt and drill into the corner until the small drills meet. It is more difficult to describe than it is to do. It only goes thru the one corner, but it works great. Bill Jepson
On 06/06/2012 09:01 AM, Ernest Christley wrote: Lehanover@aol.com wrote: http://en.wikipedia.org/wiki/Safety_wire http://www.avweb.com/news/maint/191176-1.html Just google this to read it all as a PDF AC 43.13-1B <http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/99C827DB9BAAC81B86256B4500596C4E?OpenDocument> Let me restate the question. Running and twisting the wire is simple enough. How do you get that tiny hole through the side of a 12 or 13mm nut? With as many tiny drill bits as I've broken, it would be easier and cheaper to just buy them if they are available someplace. You can buy a jig to do it http://www.amazon.com/Bikemaster-Safety-Wire-Drill-Guide/dp/B003DGN0HS (the 1st hit when I googled 'safety wire drill guide') or you could make your own with a hunk of metal & a file. Or, you could just measure the hole depth & make sure that the bolts don't bottom out. As you know, drilling a bolt head is a lot simpler. :-) Charlie
Lehanover@aol.com wrote: http://en.wikipedia.org/wiki/Safety_wire http://www.avweb.com/news/maint/191176-1.html Just google this to read it all as a PDF AC 43.13-1B <http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/99C827DB9BAAC81B86256B4500596C4E?OpenDocument> Let me restate the question. Running and twisting the wire is simple enough. How do you get that tiny hole through the side of a 12 or 13mm nut? With as many tiny drill bits as I've broken, it would be easier and cheaper to just buy them if they are available someplace.
Lehanover@aol.com wrote:
http://en.wikipedia.org/wiki/Safety_wire http://www.avweb.com/news/maint/191176-1.html Just google this to read it all as a PDF AC 43.13-1B <http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/99C827DB9BAAC81B86256B4500596C4E?OpenDocument>
Let me restate the question. Running and twisting the wire is simple enough. How do you get that tiny hole through the side of a 12 or 13mm nut? With as many tiny drill bits as I've broken, it would be easier and cheaper to just buy them if they are available someplace.