Directly threaded 3/4" x 16tpi for fixing to dml & cl series lathes or other machines with the same configuration. This chuck should not be confused with the sea of far eastern copies of more expensive chucks. this is a high-tech, precision engineered chuck designed specifically as an accurate & powerful work holding system for small & intermediate lathes up to about 15" capacity. The light, compact design minimises loads on smaller spindles & bearings & the standardised jaw & insert interface take the same accessory range as the other nova chucks, to deliver you maximum versatility (though some of the larger jaws are recommended for supernova 2 body). Precision machined on cnc machinery, the g 3 is very accurate, with a fast, precise & powerful geared action. built to the same exacting standards as the supernova 2 it also shares many features found on more expensive chucks, such as auto jaw stop, copper composite jaw slides, a newly designed woodworm screw & versatile 50mm jaws as standard. With a one handed, geared handle it is easy & efficient to mount pieces & the 4 jaw system is very forgiving of spigot & recess tolerances, making mounting much easier even for new turners. this is a directly threaded version so please remember it will only fit 3/4" x 16tpi lathes & cannot be changed at a later date. if you have several machines with different threads or plan to upgrade to the nova series at a later date we recommend buying the 48202 insert version so all you need to change is the relevant threaded insert..