10 – 3 JAWS Self-Centering T. I. R. L0 back adapter plate. TWO PCS TONGUE AND GROOVE REVERSIBLE HARDENED top & bottom JAWS. STRAIGHT RECESS OR PLAIN BACK. 3-1/4(80mm) THRU HOLE DIAMETER. Of back screws parameter circle: 226mm. Of back recess circle: 206mm. 10 3-Jaw Self Centering Lathe Chuck Top & Bottom Jaws W. L0 Back Adapter Plate. L0 back adapter plate PRECISION SEMI-STEEL BODIES. TWO PCS TONGUE AND GROOVE REVERSIBLE HARDENED top amp; bottom JAWS. 3-1/4(80mm) THRU HOLE DIAMETER Dia. Of back screws parameter circle: 226mm Dia. Of back recess circle: 206mm Body height: 80mm Overall height: 136mm. Check out our entire store for more great products and deals! We do however make every possible attempt to accurately describe the inventory we sell and stand behind it. Since 2016, 8TEN Industries has been a leading asset recovery provider supporting national retailers, brands, and manufacturers. Our 60,000 square foot processing and distribution facility located in Cass City, Michigan has allowed us to become industry leader in turning difficult problems for manufacturers into great deals for our customers.