If you are looking for a cnc drill chuck that can be used on any milling machine, then this is the guide you are looking for
The Drill Chuck Kit comes with a drill chuck and two drill rods. The kit includes everything you need to make your own drill chuck and accessories, including a thin-wall ball end mill bit. The kit also includes an adapter that allows the bit to be used in any milling machine
This guide will show how to make a cnc drill chuck on a CNC Mill.
cnc kit for mill drill