For soft jaws.
How much time do you and your men spend looking for the proper spacer rings to bore out the soft jaws?
This handy set of soft jaw anti-backlash rings for preloading chuck jaws, will save you time and expensive jaws. Use to center inside diameter of jaws, and to bring jaws to required diameter for holding workpiece.
EAGLE ROCK 1″ TO 3-15/16″ X 16THS SOFT JAW LATHE CHUCK ANTI BACKLASH RING SET