The spur driver is used in the headstock to drive wood when turning between centers, rather than using the 3-jaw chuck. The body has a #1 Morse taper. It has a center point and four “teeth” that bite into the … Continued
Spindle “Tommy” Bars are use to aid in the operation of opening and closing scrolling chucks and in the headstock spindle to provide leverage when unthreading tooling. They have a diameter of 5/32″ and are 3-1/8″ long.