Triumph® Jobber Length Drill Bit, General Purpose, Series: T2B, Imperial, #19 Drill - Wire, 0.166 in Drill - Decimal Inch, 3-1/4 in Overall Length, 2-1/8 in Cutting Depth, 2 Flutes, Spiral Flute, 2-1/8 in Flute Length, Straight Shank, 118 deg Point, Standard Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Cast Iron, Low and Medium Carbon Steel, Stainless and PH Steel