We have a model shop that has virtually every tool under the sun. The Military has a liner that is drilled and threaded. Since this liner will not fit at the opposite end, I would need to use individual threaded inserts or, perhaps a custom liner inserted. I don't want to do this.
I have redrilled my Buck Mayo and, it worked out great. Since I have a strong preference for tip-up carry, I am not buying any more folders without the tip-up clip feature.