-28, UNF, Overall Length 2 15/32 in, High Speed Steel, CrC/C, Right Hand, Thread Length 9/16 in, 75 Percent Thread Drill Size 5.Spiral Point Tap, Thread Size 1/4 In.45 mm, Thread Limit H8, Class of Fit 6H, Number of Flutes 3.
90 mm, Drill Bit Point Angle 140 Degrees , Carbide, TiAlN, Non-Coolant Through, Cutting Direction Right Hand, Decimal Equivalent 0.6260.Carbide Drill, Drill Bit Size 15.