Atlas Spindle Crank Kit
This kit provides a crank handle on the outboard end of the spindle for operations such as fine short threads. Also useful for spindle reversing if the lathe motor isn't so equipped.
The balanced ball handle is a commercially available item. Machining is primarily lathe work including external threading. One external keyway is required which can be done with either a 1/8" endmill or a woodruff keyseat cutter.