Dormer Jobber Length Drill Bit, Type N General Purpose, Series: A012, Imperial, #58 Drill - Wire, 0.042 in Drill - Decimal Inch, 1-5/8 in Overall Length, 4XD Cutting Depth, 2 Flutes, Spiral Flute, 11/16 in Flute Length, 0.0421 in Shank, Straight Shank, 118 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, HSS Cutting Edge, No Through Coolant, HSS, TiN, Gold, Applicable Materials: Aluminum, Alloy Steel, Copper, Magnetic Soft Steel, Magnesium and Lamellar Graphite