1282, Thread Limit 2B, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 5.-8, UNC, Overall Length 7 1/16 in, High Speed Steel, Black Oxide, Thread Length 1 in, 75 Percent Thread Drill Size 1.
50 mm, Drill Bit Point Angle 140 Degrees , X Thinning Point, Carbide, EgiAs, Coolant Through, Cutting Direction Right Hand, Decimal Equivalent 0.3346.Screw Machine Drill Bit, Drill Bit Size 8.