RCBS 90383 Carbide Primer Pocket Uniformer Large Pistol
https://www.tandktactical.com/shop/076683903839-rcbs-90383-carbide-primer-pocket-uniformer-large-pistol-9530
https://www.tandktactical.com/web/image/product.template/9530/image_1920?unique=fccab5c
Primer Pocket Uniformers are manufactured with carbide cutters, and serve to true the primer pocket wall and bottom.
