My machining skills are progressing as I get more practice on my 10" x 18" Craftex lathe. One of the things making me a bit crazy right now, is that I am unable to get a nice, smooth finish on the parts I turn. My cutting tools are the type with 3 cornered carbide inserts, held in place with a small screw. The carbides have a very small radius on the tips, they do not come to a sharp point. I have tried slow speed, small cuts, slow feed, everything the book tells me to do, but my surface finishes just plain SUCK!!! The attached picture is a tailstock mounted die holder that I made. It works fine, but the finish is horrible!!! How do I improve this????