4” Chuck Backplate 1-1/8 x 12 TPI (100mm) for Myford Lathe

Product Specification This 4” Chuck Backplate is designed to suit Myford lathes with a 1-1/8” x 12 TPI spindle thread, providing a reliable solution for mounting lathe chucks. Myford lathes commonly feature three bore sizes (1”, 1-1/8”, and M42.5), and this backplate is supplied with a machinable recess that allows users to precisely match the register in the back of the chuck. This ensures accurate alignment and secure mounting for a wide range of chuck configurations. Compatible with Myford Lathes Thread Size: 1-1/8” x 12 TPI Backplate Size: 4” (100mm) Thickness : 14.5 mm Machinable Recess for custom chuck register fit. Custom Drilling & Tapping to suit various chuck PCDs. Bore Variants (Myford): 1”, 1-1/8”, M42.5 Ideal for machinists and workshop professionals, this backplate provides a custom-fit solution for precise chuck mounting.