Cutting Diameter (Size): 3.50mmCutting Diameter (Decimal Inch): 0.1378Cutting Diameter (mm): 3.50Shank Diameter (Decimal Inch): 0.1248Shank Diameter (mm): 3.18Overall Length (Decimal Inch): 1.500Overall Length (mm): 38.1Flute Length (Decimal Inch): 0.500Flute Length (mm): 12.70Number of Flutes: 2Flute Style: Spiral / HelicalLength Type: Standard[Hand of Cut: Right-HandPoint Geometry: 4 FacetPoint Angle (Degree): 130Shank Type: Straight / Cylindrical [Material: Sub Micron Grain CarbideFinish / Coating: UncoatedSeries: 155Primary Workpiece Material: Copper Alloy, Plastic, Thermoset Plastic, High Density PlasticSecondary Workpiece Material: Aluminum, Graphite, CFRP, Titanium AlloyApplication: General Purpose DrillingUnit of Measure: inch