YG-1 Dream Drill, Long Length, Series: DH408, 3.5 mm Drill - Metric, 0.1378 in Drill - Decimal Inch, 66 mm Overall Length, 5XD Cutting Depth, Slow Spiral Flute, 28 mm Flute Length, 6 mm Shank, Straight Shank, 140 deg Point, Split Point, Right Hand Cutting Direction, Micro Grain Carbide Cutting Edge, Micro Grain Carbide, TiAlN, Applicable Materials: Steel, Cast Steel, Cast Iron, Chilled Cast Iron, Malleable Cast Iron, Non-Ferrous Metals, Heavy and Light Metal and Abrasive Plastic