TriNADO® Mechanics Length Drill, Heavy Duty, Series: T1M, 11/64 in Drill - Fraction, 0.1719 in Drill - Decimal Inch, 2-7/8 in Overall Length, 1-13/16 in Cutting Depth, 1-13/16 in Flute Length, 135 deg Point, Split/Self-Centering Point, HSS Cutting Edge, HSS, Black/Bronze Oxide, Applicable Materials: Alloy Steel, Cast Iron, Low and Medium Carbon Steel, High Alloy Steel, Steel, Stainless Steel, PH Steel, Tough, Medium and High Tensile Strength Alloy