The Screwcutting gearbox is able to cut 27 different threads in ex-factory trim and numerous additional ones when fitted with the "Outside Change Gears", and banjo unit, which is supplied as standard with every machine. To extend the threading range further, a wide range of supplementary gears are also available.
The lathe incorporates a most useful "threading stop" and, because there is no danger of running the thread too far or too deep, Hardinge modestly request that screwcutting speeds be limited to 1000 rpm…...
A metric conversion set is also available and supplied with an extra-large changewheel cover.

Spindle Nose Markings
The engraved line on the inner flange of the spindle nose, and  silver stud on the backplate, are in correct alignment for the two to be pulled apart.