HHIP 6" D1-4 3-Jaw Camlock Lathe Chuck ~ Direct mounting chuck with camlock nose. ~ Body is made of high grade semi-steel. ~ 2 piece top jaws are reversible. ~ Self centering jaws that are hardened and precision ground. ~ Lathe chuck wrench is included. ~ Weight is 23 lbs. ~ 3 pieces of a 5/8" diameter stud are included. ~ Maximum RPM is 2, 500. ~ T. I. R. is . 003".