Drill a perfectly centered hole in your pen blank directly on your lathe.
Thread chuck onto your lathe's headstock spindle.
Mount a drill bit in a drill chuck in your lathe's tailstock. Advance drill bit into blank while lathe is spinning.
Much easier to drill your pen blanks than using a 4 jaw chuck.
Chuck is pre-threaded to 1" x 8tpi. Weighs 1. 43 lbs. Diameter 2. 5".
Chuck will secure blanks up to 1" square x 4" long.
Dedicated jaws are 2" long. Includes (2) tightening levers to open and close the chuck jaws.