This pen kit is made using a real, but non-functional circuit board.
The circuit board is covered with a clear plastic that is easily turnable.Plenty of plastic will remain over the circuit board when it is finally turned.
The kit parts are slightly larger then our regular Sierra™ kits, and the same size as our shell and coconut kits.
Drill Bit Not Needed
EACH KIT COMES WITH THE BLANK TO MAKE THE KIT YOU ORDERED. THE TUBE IS ALREADY IN THE MATERIAL SO ALL YOU HAVE TO DO IS MOUNT THE BLANKS ON THE MANDREL WITH THE CORRECT BUSHING AND TURN.