Triumph® Jobber Length Drill Bit, General Purpose, Series: T2B, Imperial, #58 Drill - Wire, 0.042 in Drill - Decimal Inch, 1-5/8 in Overall Length, 11/16 in Cutting Depth, 11/16 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