Guhring Taper Shank Drill, Type N Deep Hole General Purpose, Series: 217, Metric Drill Diameter Measurement System, 2.9 mm Drill Size - Metric, 0.1142 in Drill Size - Decimal Inch, 100 mm Overall Length, 61.65 mm Cutting Depth, 2 Flutes, Spiral Flute, 66 mm Flute Length, 118 deg Point, Cone Relief Point, Right Hand Cutting Direction, HSS Cutting Edge, Through Coolant (Yes/No): No, HSS, Steam Oxide, Applicable Materials: Steel, Gray Cast Iron, Malleable Iron, Spheroidal Iron, Aluminum and Other Non-Ferrous Metals