[CoolHand]

I'm thinking of switching to a 1 flt .5" indexable, or a 2 flt .625" indexable.

I have to have a good surface finish when the part is done. Will the 1 flute still give me a decent finish?

5000 rpm is the top spindle speed on my machine, so SFM is as high as its gonna go. I can bump up the feed all the way to 280 IPM (max cutting feed) if needs be to get the FPT up where it should be.

BTW, what FPt would you guys suggest for the 4 flt? I've got one more setting here, so I might as well use it.

The indexables I was looking at suggest FPT in the neighborhood of .010" Would this be a good place to start for coated inserts with the right geometry?

Your previous suggestions are very helpful, any others would be equally well appreciated.

Thanks again for your time.