pQualtech Aircraft Extension Drill, Economy, Series DWDAC, 38 in Drill Size Fraction, 0375 in Drill Size Decimal Inch, 12 in Overall Length, 358 in Cutting Depth, 2 Flutes, 358 in Flute Length, Round Shank, 135 deg Point, Split Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials Mild Steelp