Mini Lathe Headstock Assembly, SIEG C3 5849 - LittleMachineShop.com
Headstock upgrade - mikesworkshop
AUIDO Metal lathe headstock hollow spindle, Spindle for 80mm chuck flange, Spindle taper MT3,Thread M27x1.5 ,CJ0618 Home DIY Metalworking Mini Lathe Spare parts - Amazon.com