The L.E. Wilson Micrometer Top Bullet Seater Dies, as its name suggests, incorporates several features that ensure reloaders have a tool that guarantees accurate bullet-seating depths. Built with durable stainless steel Micrometer top uses scale in 0.001” increments Major adjustments made with threaded cap The L.E. Wilson Micrometer Top Bullet Seater Die, with its hardy construction and easy-to-use setup ensures that owners have one of the most accurate bullet-seating tools available today. Another advantage of Arbor Seaters, you can load your bullets long and take the Press and Die with you to the range to test seating depth, saves you multiple trips to the range! **To be used with an Arbor Press**