OSG Drill Bit, Jobber Length Standard, Series: 220D, Imperial, #1 Drill - Wire, 5.791 mm Drill - Metric, 0.228 in Drill - Decimal Inch, 76.2 mm Overall Length, 44.5 mm Cutting Depth, 2 Flutes, Spiral Flute, 44.5 mm Flute Length, 5.79 mm Dia Shank, Straight Shank, 118 deg Point, 4-Facet Point, Right Hand Cutting, Carbide Cutting Edge, Through Coolant (Yes/No): No, Carbide, Bright, Applicable Materials: Alloy Steel, Aluminum, Cast Iron, Low/Medium/High Carbon Steel, Hardened Steel and Stainless Steel