I designed these Stare Knobs to be as close to the original as possible. These are a 7/16"-14 thread and will work on all Delta tools that use these knobs, they only made one size. They are used on the 14" Band saw, 6x48" belt sander, multiple jointers, the disc sander and several other tools. They are 3D Printed from PLA Plastic here in the USA by me.