OSG Drill Bit, Jobber Length Standard, Series: 200, Imperial, #52 Drill - Wire, 1.61 mm Drill - Metric, 0.0635 in Drill - Decimal Inch, 42.9 mm Overall Length, 2 Flutes, Straight Flute, 17.5 mm Flute Length, 1.61 mm Shank, Straight Shank, 140 deg Point, 4-Facet Point, Right Hand Cutting, Carbide Cutting Edge, Applicable Materials: Low Carbon Steel and Cast Iron, General Machine, Through Coolant (Yes/No): No, Carbide, Uncoated