Our standard tuner holes are an 11/32" straight bore. This matches up to the push-in grommets of the standard Vintage Style tuners (some copies may be different).
By request and at no additional cost we will ream or counter-bore the holes to fit most popular tuners with the purchase of a new Warmoth neck.
Baritone necks typically use large gauge strings that do not fit through the string holes on Schaller mini locking tuners.