[Century Tool & Design, Inc. | Your screw machine tooling specialists for inserted style tooling... High Performance, Indexable, Carbide and HSS Tooling Serving the Screw Machine and Aerospace Industries. Our indexable screw machine tooling is designed for maximum rigidity, and we use the finest sub-micron carbide grades and high speed steels available. We offer a full range of the latest tool coatings as well. Standard precision ground inserts are]