Ah, I thought you were referring to the insert shape/size. Matching grades between manufacturers is very imprecise since they are all proprietary and have no standardization. If you need it for a specific application, calling a tooling rep for a manufacturer you wish to use could help you identify what you need.This Iscar has cut some pretty tough stuff, and I don't know what the equivalent would be in another brand. I going through David's book to see if I can figure it out, he has an Aloris number listed.