So the original question was is there a small surface grinder that has a 1" shaft. The attached picture show a purpose built mill, complete with shop made spindle. The setup here would cost a few grand to replicate, so I am following a lead that I heard from another rodmaker that you can get all of the benefits (spindle speed, stability and adjustability) in a much cheaper package with a small surface grinder. A horizontal mill is not the right kind of machine because it will be too slow, among other things. I guess I am going to have to look at building the same thing in the picture.