Helium 1.75 OD Tube Drill Jig
thingiverse
This jig will help guide you when drilling holes on your pole/mast. This model will fit poles with an outside diameter of 1.75". _______________________________________________________________________ If you are like me and don't have a drill press, you can use this drill jig to drill the holes for your fish-eye hooks and riv-nuts. I used 1/4" machine screws for my fish-eyes and riv-nut machine screws. For the actual riv-nuts, I used a 3/8" drill bit and I spent about $20 on the riv-nut tool. I recommend starting the holes with the 1/4" drill bit and finishing with the 3/8" drill bit.
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