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.