THIS IS A COLLIS PART NUMBER: 68213 MORSE TAPER END MILL HOLDER. IT FEATURES A CAT 40 TAPER TYPE AND HAS A PROJECTION OF 2-3/4 INCHES, WITH AN OVERALL LENGTH (OAL) OF 6 INCHES. THE BORE ID MEASURES 24MM, AND THE BODY DIAMETER IS 1.75 INCHES. STAMPED INFORMATION ON THE PART INCLUDES 40CV 3MT 2.75 PRO R9.