Sandvik Coromant Jobber Length Drill Bit, Series: CoroDrill 452, Imperial, 5/16 in Drill - Fraction, 0.3125 in Drill - Decimal Inch, 4 in Overall Length, 6XD Cutting Depth, 2 Flutes, Spiral Flute, 2 in Flute Length, 5/16 in Shank, Cylindrical Shank, 135 deg Point, Self-Centering Point, Right Hand Cutting Direction, Solid Carbide Cutting Edge, No Through Coolant, Solid Carbide, Uncoated, Applicable Materials: Aluminum, Composite, Titanium, Heat Resistant Super Alloy, Stainless Steel and Metallic Stack Materials