I have a southbend with #3 and a Leblond with a #4. I liked the Enco because it has the one with the flat knurl, it comes in handy when you hot a piece with out a center in it. joefroooo if you can find a brand and a price i might be interested. The centers are propotional to there size, using a #3 on #4 isn't to bad but using #2 on a #4 might be small,but shoot me some info .Thanks Dave