[DC] Cutting Diameter (Size): 1/64"[DC] Cutting Diameter (Decimal Inch): 0.0156[DC] Cutting Diameter (mm): 0.40[DCON] Shank Diameter (Decimal Inch): 0.1250[DCON] Shank Diameter (mm): 3.18[LF] Overall Length (Decimal Inch): 1.500[LF] Overall Length (mm): 38.10[APMX] Length of Cut (Decimal Inch): 0.047[APMX] Length of Cut (mm): 1.19[LU] Reach Length (Decimal Inch): 0.120[LU] Reach Length (mm): 3.05Length Type: Extended Reach[DN] Neck Diameter (Decimal Inch): 0.0145[DN] Neck Diameter (mm): 0.37Neck Length (Decimal Inch): 0.120Neck Length (mm): 3.05Helix 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: 1645Priority Workpiece Material: Copper Alloy, Brass, Plastic, Thermoset PlasticApplicable Workpiece Material: Aluminum, Graphite, CFRP, Titanium AlloyApplication: Roughing / FinishingUnit of Measure: inch