This same company has a few other types of these; I also got a set of skinny, kinda utility files with varying edges, points, curves, etc...about the same price if I remember.
https://www.amazon.com/s?k=SE+diamon...f=nb_sb_noss_2
None of these is super high quality or anything...probably wouldn't last long if used for much metal work (although they work pretty well for touching up slots in electric guitar saddles), but they sure make easy work on bone & wood, and are cheaply replaced if damaged.