ATM 1-13/16" Morse Taper No.5MT Shank Drill Bit 17-1/4" OALMorse Taper Shank: No. 5 Overall Length (nearest 1 4"): 17 1 4" Length of Flute (nearest 1 4"): 10 1 4" No of Flutes: 2 Drill Point Angle: 130 . 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