Lee Precision 90108 Auto Index Hex Rachet 3 Per Pack
http://www.tandktactical.com/shop/734307901080-lee-precision-90108-auto-index-hex-rachet-3-per-pack-6281
http://www.tandktactical.com/web/image/product.template/6281/image_1920?unique=7481878
The Hex Ratchet fits inside the ratchet gear and needs to be replaced when the index rod does not seat properly.
