Spiral Point Tap, Thread Size 1/4 In.-20, UNC, Overall Length 2 1/2 in, HSS-E, Black Oxide, Right Hand, Thread Length 5/8 in, 75 Percent Thread Drill Size #7, Thread Limit H5, Class of Fit 2B-3B, Number of Flutes 3.
40 mm, Drill Bit Point Angle 130 Degrees , 4 Facet Point, High Speed Steel, WD1, Non-Coolant Through, Cutting Direction Right Hand, Decimal Equivalent 0.Screw Machine Drill Bit, Drill Bit Size 2.0945.