[OD] Cutting Diameter (Size): 0.0450"[OD] Cutting Diameter (Decimal Inch): 0.0450[OD] Cutting Diameter (mm): 1.14[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): 0.067[L2] Length of Cut (mm): 1.70[L3] Reach Length (Decimal Inch): 0.375[L3] Reach Length (mm): 9.53Length Type: Extended ReachNeck Diameter (Decimal Inch): 0.0423Neck Diameter (mm): 1.07Neck Length (Decimal Inch): 0.375Neck Length (mm): 9.53Helix 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: UncoatedSeries: 1740Primary Workpiece Material: BrassSecondary Workpiece Material: Aluminum, Graphite, Copper Alloy, CFRP, Plastic, Thermoset Plastic, High Density Plastic, Titanium AlloyApplication: Roughing / FinishingUnit of Measure: inch