Yep.

For the SN2 you have to buy the std Powergrip jaws. Two screw holes while the Titan s/grips have 3.

FWIW, I think the Titan chuck is worth buying for heavyweight turning, since it will take most of T'tool jaws, and esp. the 75mm bowl jaws as well as the Titan Supergrips. That said, the edges of my 75 mm bowl jaws were arrissed (sp?, ie rounded over) and I had a kind forum member machine the faces down to get rid of them.