SGS®, 67177, Drill Bit, High-Performance, Series: 136U, 16.5 mm Drill - Metric, 0.649 in Drill - Decimal Inch, 125 mm Overall Length, 2xD Cutting Depth, 2 Flutes, Right Spiral Flute, 58 mm Flute Length, 18 mm Dia x 57 mm L Shank, Straight Shank, 180 deg Point, Self-Centering Notch Point, Carbide Cutting Edge, TX Coated, Applicable Materials: Steel/Stainless Steel/Cast Iron/Non-Ferrous Materials/High Temp Alloy/Hardened Materials/Plastics/Composites