Greater Columbus Convention Center, Columbus, OH. The Precision Machined Products Association along with Production Machining and Modern Machine Shop magazines presents the biennial PMTS, which is an international exposition attracting manufacturers, suppliers and end users of products and services completely devoted to precision machined products and turned parts' production. Several hour-long technical sessions accompany the trade show. They provide attendees with on-site expertise and the latest industry technology knowledge. Show admission and the technical sessions are free for pre-registered attendees.