Gear wrench 17-Piece ratcheting tap and die set, SAE. Consisting of: 82800 large ratcheting T wrench, 82801 large Locking tap adapter, 82802 large hex die adapter, SAE threat gauge, 4 millimeter hex Key, 6 taps - 9/16-12NC plug, 9/16-18NF plug, 5/8-11NC plug, 5/8-18NF plug, 3/4-10NC plug, and 3/4-16NF plug, 6 dies - 9/16-12NC plug, 9/16-18NF plug, 5/8-11NC plug, 5/8-18NF plug, 3/4-10NC plug, and 3/4-16NF plug. Has complete set of 6 most popular SAE taps and 6 most popular dies, plus gear wrench"s auto-lock tap adapter and ratching T handle system. Blow molded case for safe and organized storage.