Hi, A good friend of mine wants me to turn him some bowls out of Teak. He supplied the Teak a rather large piece 24" X 24" X 2". I've never turned Teak before so would like to know the in and outs or tricks. I was told that carbide tools dulled pretty fast. Also what should I finish it with. They will be used to serve food and I normally use pure mineral oil. Thanks, Jim