Cutting Diameter (Size): 3.97mmCutting Diameter (Decimal Inch): 0.1563Cutting Diameter (mm): 3.97Shank Diameter (Decimal Inch): 0.2362Shank Diameter (mm): 6.00Overall Length (Decimal Inch): 3.0315Overall Length (mm): 77.00Ream Length (Decimal Inch): 0.8268Ream Length (mm): 21.00Reach Length (Decimal Inch): 1.7717Reach Length (mm): 45.00Number of Flutes: 6Flute Style: Left-Hand SpiralLength Type: Standard LengthHand of Cut: Right-HandChamfer Angle (Degree): 45Shank Type: Straight / Cylindrical Material: Sub Micron Grain CarbideFinish / Coating: AlTiNSeries: MR66Primary Workpiece Material: Steel ~30HRC, Steel 30~40HRC, Hardened Steel ~55HRC, Hardened Steel ~68HRC, Stainless SteelSecondary Workpiece Material: Cast Iron, Nickel / Cobalt, Titanium AlloyApplication: Reaming Through HolesUnit of Measure: mm