If you want to make a serviceable tool that can be used over and over again then this is the right kit for you. This 22 Cal pen-it! brass cnc kit comes with everything you need to start machining brass parts
The kit includes a drill chuck, indexing screw and drill bit holder. You also get a spindle chuck, indexing screw and drill bit holder. You will also receive two cutting heads (1/4" and 3/8") along with a collet adapter included in case you need it.
22 cal brass pen cnc