Dormer Jobber Length Drill Bit, General Purpose, Series: A108, Imperial, 15/64 in Drill - Fraction, 0.2344 in Drill - Decimal Inch, 93 mm Overall Length, 4XD Cutting Depth, 2 Flutes, Quick-Spiral Flute, 57 mm Flute Length, Straight Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, No Through Coolant, HSS, Steam Tempered, Dark Gray, Applicable Materials: Magnetic Soft Steel, Alloy Steel, Lamellar Graphite, Aluminum, Magnesium, Unalloyed and Copper