Oneway chucks can be used on almost any lathe. These threaded taper-lock mounting adapters, available to fit a wide variety of lathes, center themselves perfectly in the chuck body, which can then be screwed onto your lathe's spindle nose. Two of the most popular sizes, 1"-8 tpi & 1-1/4-8 tpi, are cross-threaded right- & left-hand to work equally well on both inboard and outboard spindles. An adapter is required for mounting Oneway chucks. Extra adapters offer a very economical way to use the same chuck on every lathe you own. Note that Talon and Oneway chucks accept adapters up to 33mm. Only the Stronghold Chuck handles 1-1/2"-8 tpi mounting adapters.