[OD] Cutting Diameter (Size): 1/8"[OD] Cutting Diameter (Decimal Inch): 0.1250[OD] Cutting Diameter (mm): 3.18[Od] Shank Diameter (Decimal Inch): 0.1250[Od] Shank Diameter (mm): 3.18[L1] Overall Length (Decimal Inch): 2.500[L1] Overall Length (mm): 63.50[L2] Length of Cut (Decimal Inch): 0.187[L2] Length of Cut (mm): 4.75[L3] Reach Length (Decimal Inch): 1.250[L3] Reach Length (mm): 31.75Length Type: Extended Reach, StubNeck Diameter (Decimal Inch): 0.1175Neck Diameter (mm): 2.98Neck Length (Decimal Inch): 1.250Neck Length (mm): 31.75Helix Angle (Degree): 30Number of Flutes: 3Flute Style: Right Hand Spiral / Medium HelixType: Micro with Neck Relief, Center CuttingHand of Cut: Right-HandShank Type: Straight / CylindricalMaterial: Sub Micron Grain CarbideFinish / Coating: DLCSeries: 1742Primary Workpiece Material: Graphite, CFRP, Plastic, Thermoset PlasticSecondary Workpiece Material: Aluminum, Copper Alloy, BrassApplication: Roughing / FinishingUnit of Measure: inch