Jaws and screws have square threads. Chuck body surrounds 60 percent of screw for its entire length, which along with the square threading provides even weight distribution. Chuck has two-piece reversible jaws. Includes mounting screws and lathe chuck wrench.
Warning:This product may expose you to chemicals including Nickel, Chromium, or Lead, chemicals known to the State of California to cause Birth Defects and/or Cancer. For more information go to www.P65Warnings.ca.gov