PSI Bottle Stopper Chuck 1 in. x 8tpi

Our bottle stopper turning customers give this chuck their highest rating. Saves time and holds stopper blanks securely. Exclusively designed to turn PSI bottle stopper projects. Chuck's threaded insert matches the components of most of our bottle stopper kits.

The chuck requires a 23/64 drill bit for drilling the hole that the stopper stud screws into. (Note: Using the chuck requires drilling the 23/64 hole then threading in the stud. Threading wood into a wood or acrylic hole is not an exact science; you may find the mandrel a bit too loose or too tight depending on many factors including; your drill press accuracy, type of material, moisture content etc. For best and most consistent results, use a 5/16in drill bit and 3/8in tap (not included).