The L.E. Wilson Stainless Steel Chamber Type Micrometer Seater Die features a micrometer seater. Precision adjustment in .001" increments of seating depth. Both bullet and case are firmly held in perfect alignment as the bullet is seated in the case. Hand-die design for use with a mallet or an arbor press. Not for use on a conventional press.Notes: Die is used with an Arbor press. Micrometer is graduated for .001" adjustments in seating depth FeaturesBore hole is finished and the blank is made long so you may cut it to the correct length. A neck and a pilot hole is drilled through to the finished bore. Chamber your own micrometer seater to your wildcat cartridge or chamber reamer. Comes with a guide on how to chamber the die