The most accurate straight-line bullet seater for reloaders. Micrometer adjustment ensures repeatable, precise COAL control at the bench or range. Seaters have a built in micrometer seating depth adjustment feature with an easy to read scale in .001 graduations. Major seating adjustments can be made with the 3/8" - 24 TPI threads in the cap. Long lasting stainless steel material, laser engraved marking, make them simple and easy to use. Take with you to the range and adjust seating depth to find your chambers optimal COAL. Made in the U.S.A