[OD] Cutting Diameter (Size): 0.0150"[OD] Cutting Diameter (Decimal Inch): 0.0150[OD] Cutting Diameter (mm): 0.38[Od] Shank Diameter (Decimal Inch): 0.1250[Od] Shank Diameter (mm): 3.18[L1] Overall Length (Decimal Inch): 1.500[L1] Overall Length (mm): 38.10[L2] Length of Cut (Decimal Inch): 0.045[L2] Length of Cut (mm): 1.14[L3] Reach Length (Decimal Inch): 0.150[L3] Reach Length (mm): 3.81Length Type: Extended ReachNeck Diameter (Decimal Inch): 0.0139Neck Diameter (mm): 0.35Neck Length (Decimal Inch): 0.150Neck Length (mm): 3.81Helix Angle (Degree): 30Number of Flutes: 2Flute Style: Right Hand Spiral / Medium HelixType: Micro with Neck Relief, Center CuttingHand of Cut: Right-HandShank Type: Straight / CylindricalMaterial: Sub Micron Grain CarbideFinish / Coating: UncoatedSeries: 1640Primary Workpiece Material: Copper Alloy, Brass, Plastic, Thermoset PlasticSecondary Workpiece Material: Aluminum, Graphite, CFRP, High Density Plastic, Titanium AlloyApplication: Roughing / FinishingUnit of Measure: inch