MRO Plus® Jobber Length Drill, Heavy Duty, Series: T101D, Imperial, 1/4 in Drill - Fraction, 0.25 in Drill - Decimal Inch, 4 in Overall Length, 2-3/4 in Cutting Depth, 2-3/4 in Flute Length, 3-Flat Shank, 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