Brand new 1/2"-20 right hand thread spindle Adapter that fits all Shopsmith models. This can also be used on any electric motor with a 5/8" smooth shaft.
 
5/8" smooth bore.
OD - 1"  with flange 1.25"
Wrench flats 1.0"
Full Length: 2"
Thread: 1/2" - 20 Right Hand.
Approximate thread Length: .75"
Approximate body Length: 1.25"
Chrome finish.
Mounts with 1 set screw.