Stock Center Finder
Works quickly and accurately to locate the center of stock for turning on a lathe or other purposes. No need for special calculations. This easy-to-use finder has no moving parts, so your measurements will be simple and consistent.Technical DetailsTransparent yellow tinted plasticMaximum 8"" circle, octagon and square or 5-3/4"" hexagonMade of impact resistant plastic
Stock Center Finder Review
To sum it up, I would recommend guys to buy Rockler Stock Center Finder at Rockler. For 9.99 it's just excelent!