Eastman tuners

[Mace]

If I decide to replace the “reverse” turning Schaller tuners exactly what Schaller tuners should I buy that would require no drilling?

[Mandobart]

I replaced the OEM tuners on my Eastman MDC805 mandocello with Schaller Grandtune's. The rollers aligned perfectly (spacing and size is standardized) but the new Schaller bushings were slightly undersized for the holes, and I had to drill some new holes for the mounting screws.

Same thing when I re placed the no name tuners on a small shop luthier built F5 with Rubner's.