I have been on the lookout for a nice dividing head and found a nice k&t 12" model k in nice shape with extra plates and a tailstock, and has had the spindle bored out to 2.250". The seller also had a 10" model k but it was naked; no plates, indexing arm/pin, indexing fingers, plate clamp. I was wondering if the plates and the rest of the plate related fixins will swap over to the 10". I didn't have much time to look at them but I did notice the mounting holes on the plates look the same. None of the manuals I have seen say anything about swapping.