It all depends on what you are making. I have more than a dozen hole punches of various sizes. including the rotary punch tools. Can't say that I have used them all, but have used 4 or 5 of them on the buscadero gun belt rig I am currently working on. I don't think any of mine are Osborne punches. Some are from Tandy, others from Weaver, and I think one set was originally used to punch out rubber gaskets. They all work beautifully on leather...as long as they are sharp.