Triumph® Jobber Length Drill Bit, General Purpose, Series: T2B, Imperial, #16 Drill - Wire, 0.177 in Drill - Decimal Inch, 3-3/8 in Overall Length, 2-3/16 in Cutting Depth, 2-3/16 in Flute Length, 118 deg Point, HSS Cutting Edge, HSS, Black Oxide, Applicable Materials: Cast Iron, Stainless Steel, PH Steel, Low and Medium Carbon Steel