Sorry, it's me again....
I bought the HFT roller and these dies for it. They made them hard to find as you have to enter 3 piece die set to find them!
3 Piece Die Set
I put the dies in the lathe and cut them wider to fit 1 1/4" tubing, they are plenty wide enough to cut for 2". Trick is you don't have to cut the groove deeper, just wider to help keep the tube aligned.