EPOTOOR Woodturning Lathe Chuck 3-1/4Inch Large Dedicated Pen Blank Drilling Lathe Chuck with 1 x 8TPI Pre-Threaded for Lathe

Metal Product Material - It is made of high quality metal material to ensure its durability and stability. Jaws - Reversible jaws on chuck will secure blanks up to 2. 5 square x 5 long. Product Size - The chuck diameter is 3.25 inch, the chuck is pre threaded to 1 x 8 tpi to match your spindle. Usage - Thread chuck onto your lathes headstock spindle. Mount a drill bit in a drill chuck in your lathes tailstock. Advance drill bit into blank while lathe is spinning.