“You can use Forstner bits to excavate the hole in a pillar drill or milling machine”
I had thought about that, however with the super tight clearance between the colon riser holes I opted for pre-drilling the solid block until I had a wide enough hole to begin milling the hole with a rotary tools straight routing bit. After I had test-fit the tubes in the holes I picked the cleanest looking of the two sides and opened up the other for the boards. Green masking tape came in very handy to keep unintentional damage to a minimum. Sent from my iPhone > On Jan 16, 2019, at 04:27, Roddy Scott <roddyscot...@gmail.com> wrote: > > You can use Forstner bits to excavate the hole in a pillar drill or milling > machine -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/F0508E15-1C46-41BC-92C7-31598557C168%40gmail.com. For more options, visit https://groups.google.com/d/optout.
