Dene Collett wrote: > I was just wondering what type of drill bits you guys were using to drill > the bolt holes through the spar for the waf's mounting bolts. Do you use a > normal twist drill as for steel work or do you use the woodworking spade > type .
I used a regular 3/16" twist drill bit, about a foot long. They sell them at Home Depot and other stores (although I know that doesn't help you). I guess SA is metric, right? That might be a little bit of a problem, but I'd think any decent machine shop supply place would have them, or certainly could get them. I made a fixture for that job that really made flawlessly co-axial holes, at http://home.hiwaay.net/~langford/kmlws11.jpg . More details on how to make it and use it are at http://home.hiwaay.net/~langford/owings.html . Mark Langford, Huntsville, AL N56ML at hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford
