SGS®, 58490, Drill Bit, High-Performance, Series: 136U, #28 Drill - Wire, 0.1405 in Drill - Decimal Inch, 50 mm Overall Length, 2xD Cutting Depth, 2 Flutes, Right Spiral Flute, 12 mm Flute Length, 6 mm Dia x 36 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