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Plastic drill bits
Posted:
Mon Sep 02, 2019 8:35 amby Concorde
Looking for #36 ,9/64 and 11/64 but can’t find them anywhere , any ideas ?
Thanks.
Re: Plastic drill bits
Posted:
Mon Sep 02, 2019 8:43 amby Area 51%
Have you tried McMaster Carr?
I went with plastic drills a size under, then chased the holes with spiral reamers of the final size.
Re: Plastic drill bits
Posted:
Mon Sep 02, 2019 10:16 amby Bryan Cotton
I've made plexiglass bits by first using the bit on an old concrete block. Dulls it down so it doesn't catch on the plexiglass.
Try it on scrap. Then you are only out the cost of a drill bit or 3 if it doesn't work for you.
Re: Plastic drill bits
Posted:
Tue Sep 03, 2019 7:23 amby Concorde
Thanks area 51 , I will give them a call .
Brayn . I am just trying to minimize the chance of cracking the canopy and then blaming myself for it . Thanks
Re: Plastic drill bits
Posted:
Tue Sep 03, 2019 10:38 amby NWade
In the EAA “Hints for homebuilders” video series (see the EAA website), John Monnett created a video showing how to modify a normal drill bit for this purpose - definitely worth checking out!
—Noel
Re: Plastic drill bits
Posted:
Tue Sep 03, 2019 12:16 pmby Concorde
I did see the video awhile back but after calling the Mc Master and found out how cheap the bits were, I ordered them . Thanks again for all the help .