-20, UNF, Overall Length 3 3/8 in, High Speed Steel, CrC/C, Right Hand, Thread Length 15/16 in, 75 Percent Thread Drill Size 11.Spiral Point Tap, Thread Size 1/2 In.40 mm, Thread Limit H6, Class of Fit 6H, Number of Flutes 3.
Extra Long Drill Bit, Drill Bit Size 9.50 mm, Drill Bit Point Angle 132 Degrees , Conical Point, Carbide, TiAlN, Material Grade - Machining WU20PD, Maximum Drilling Depth 197.