DoN. Nichols wrote:

O.K. Are these coated or uncoated inserts? If coated, how much
does that dull the edge?

They're available both ways. As you suggest the coating significantly
dulls the edge. I made the mistake of ordering some. Won't do that
again. As you know, I'm using a comapatively light machine so cuts that
would use a TNMG as positive rake just aren't on.

Ted