G1489 Jobber Drill Bit Material High Speed Steel Point Angle 135 Degrees Split Point Finish Black Oxide Dimension Type Letter Size A Decimal Equivalent 0.2340 In. Flute Length 2-5/8 In. Overall Length 3-7/8 In. List Number 150ASP Shank Dia 0.2340 In. Standards National Aerospace Standards (NAS) 907 Type B