For chucks made by Kitagawa, Matsumoto, Howa and Seike. Double step design, American Standard tongue and groove. Made of 1018 mild steel. Sold in sets of three.
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