I cut a fair number of flutes in plywood using a 3/4 radius ball-nose. I'm currently using brazed carbide but wonder if there is a better option. I'm getting too much fuzz, but I suspect that it's because my tool needs sharpening. Would a tool with replaceable inserts be a good idea? Should I consider diamond? Can such a thing be had with chip breaker geometry?
From contributor G:
It is likely that the fuzziness is occurring on the climb side of the cut. If you do two passes, one direction and then go back in the opposite direction it will cut off the fuzz. Or, like you said the bit might just be dull.