THE COLLIS 67868 IS A CAT END MILL HOLDER FEATURING A CAT 50 TAPER. THIS PRECISION TOOLING COMPONENT HAS A PROJECTION OF 9.63 INCHES, A HOLE DIAMETER OF 2 INCHES, AND A HEAD DIAMETER MEASURING 3.73 INCHES. IT IS DESIGNED WITH THROUGH COOLANT CAPABILITY. THE OVERALL LENGTH OF THE ENTIRE PIECE IS 14-5/8 INCHES.