pQualtech Aircraft Extension Drill, Economy, Series DWDAC, 1332 in Drill Size Fraction, 04062 in Drill Size Decimal Inch, 6 in Overall Length, 378 in Cutting Depth, 2 Flutes, 378 in Flute Length, Round Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials Mild Steelp.