Tunnel ram or no tunnel ram...

I found 6/32 unc set of taps, 8/32 unc set of taps and 10/32 unf set of taps locally, well almost, in Germany. Is this what I need?

Drill bits will be more problematic. What sizes do I need exactly? I’ll see if I can get metric in close sizes…

Drill sizes I found easily available from size 0.0012”, next sizes 0.0015, 0.0019 and up by 0.004” to whatever size is needed.

Yes, UNC is what you want. That’s 32 threads per inch. UNF, which is fine thread and for these sizes of threads that’s 24 threads per inch.

Whatever you can’t get over there let me know and I’ll get it here and send it to you.

That way you can tune these things up and really enjoy your tunnel ram.