A handy tool for changing CNC bits. Adjustable for consistent stick-out. Print with working -end down with supports. Use a flat-blade screwdriver to screw in the adjuster disk into the back end of the tool. Set the adjuster disk to the desired amount of bit stick-out.
I recommend printing with three or more shells.
After printing, clean out supports. Insert adjuster disk into the back of tool using a flat-bladed screwdriver. Adjust as needed for preferred amount of bit stick-out.
This video demonstrates use