SGS®, 67117, Drill Bit, High-Performance, Series: 136U, 7.1 mm Drill - Metric, 0.279 in Drill - Decimal Inch, 70 mm Overall Length, 2xD Cutting Depth, 2 Flutes, Right Spiral Flute, 25 mm Flute Length, 8 mm Dia x 37 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