MARXBORE Jobber Length Drill Bit, Heavy Duty, Series: 334, Metric/Imperial, 7.5 mm Drill - Metric, 0.2953 in Drill - Decimal Inch, 109 mm Overall Length, 69 mm Cutting Depth, Standard Flute, 69 mm Flute Length, 7.5 mm Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, HSS Cutting Edge, No Through Coolant, HSS, Black/Gold Oxide, Applicable Materials: Alloy Steel, Aluminum Alloy, Cast Iron, Composites, Copper Alloy, Low Carbon Steel, Magnesium Alloy, Medium Carbon Steel, Plastic, Stainless Steel, Titanium Alloy, Tool and Die Steel