Full-length sizer with raised expander ball allows extra leverage for smooth, effortless neck expansion. Maximum concentricity between die neck & body. Seater die with micrometer for accurate bullet seating head depth. Bullet inserts through side window instead of bottom of die. Special bullet seating guide ensures correct bullet alignment before & after seating. Extended shell holder for shorter cartridges. Black oxide finish. Not for use with progressive reloading presses.