Carbide Inserts

[Vinny]

While cleaning off the last of the shelves I set aside a bag of carbide inserts to check out next time I took a break. I got these inserts with my mini-lathe. The guy I got it from threw in all sorts of tooling. Back to the inserts. There are two different types, SNMA-433 and SPG-433. Some Morse, some Interstate and some HTC. The only difference I see (haven't done too much comparing) is the SNMA has a hole in the center whereas the SPG is solid. Does anyone know what kind of tool do these go into?