Detailed information for the ratchet threader: For manual threading work. Threader Sets includes Die Heads, Ratchet Assembly, Ratchet Handle. All Threader Sets use compatible 12-R Dies in Die Head. Die head sizes: 1/2", 3/4", 1", 1 1/4", 1 1/2", 2" Both BSPT & NPT are avaliable
