ratchet threader set Threader Sets includes Die Heads, Ratchet Assembly All Threader Sets use compatible 11R type dies ratchet threader set: 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