ACE 1-55/64" Morse Taper No.5 MT Shank Drill Bit 18" OALMorse Taper Shank: No. 5 Overall Length (nearest 1 4"): 18" Length of Flute (nearest 1 4"): 10 1 2" No of Flutes: 2 Drill Point Angle: 118 . High Speed Steel (HSS: M1, M2, M7, M50) Combines good tool life & productivity with minimal cost. Works well in free cutting & carbon steels, as well as soft, non ferrous materials like aluminum, brass, bronze & copper. Able to handle less than ideal set ups. Black Oxide (Surface treated) retains lubricants to