01-27-2015, 10:08 PM
What's the nomenclature off the insert box (back side), Ed? They appear to have a much larger radius than I might choose for that type of tool. They appear to be an SCMT32.52-MM. That MM chipbreaker is the designation Sandvik Coromant uses for stainless steel grades, it changes to PM for steels, and KM for cast iron grades.
Myself, I'd go for an SCGT32.50.5 or in ISO metric designation an SCMT09T302 (.0078"/0.2mm radius) insert as I'm often trying to put a 45º chamfer on a short shoulder, not leaving much room for a big radius tool.
I could have helped you find some (or sent you some, gratis) if I knew you needed something like that.
If those are a grade 42xx, they're for steel. If they're a 20xx or 10xx grade, they're primarily for stainless. Of course whatever they are they'll work in aluminum or the "wrong" materials at the lower cutting speeds you can run.
Myself, I'd go for an SCGT32.50.5 or in ISO metric designation an SCMT09T302 (.0078"/0.2mm radius) insert as I'm often trying to put a 45º chamfer on a short shoulder, not leaving much room for a big radius tool.
I could have helped you find some (or sent you some, gratis) if I knew you needed something like that.
If those are a grade 42xx, they're for steel. If they're a 20xx or 10xx grade, they're primarily for stainless. Of course whatever they are they'll work in aluminum or the "wrong" materials at the lower cutting speeds you can run.