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8.40mm Dia, 180 Degree Point, Solid Carbide Drill - 67761

SERIES: 146U

Hi-PerCarb 146U Flat Bottom

8.40mm Dia, 180 Degree Point, 10.00mm Shank Dia, 80.00mm OAL, 2 Flute, 3xD, Coolant-Through, Ti-NAMITE-X (TX) Coated, Series 146U, Hi-PerCarb 146U Flat Bottom, Solid Carbide Drill - 67761

Feature & Benefits

  • 4-margin design improves accuracy and surface finish along with increased strength for aggressive drilling
  • Specialized self-centering notched point eliminates the need for spot drilling decreasing thrust and deflection
  • Engineered edge protection improves edge strength and reduces edge fatigue allowing for increased feed rates
  • Recommended for materials ≤ 56 HRc (≤ 577 Bhn)

SKU / EDP67761
CategorySolid Round Tools > Holemaking > High Performance Drills
Min Order Qty1
Series146U
Series DescriptionHi-PerCarb 146U Flat Bottom
High PerformanceYes
Unit (inch/mm)mm
Number of Flutes2
Primary Workpiece Material(P) Steel|(M) Stainless Steel|(K) Cast Iron|(N) Non-Ferrous Materials|(S) High Temp Alloy|(H) Hardened Materials
Secondary Workpiece Material(N) Non-Ferrous Materials|Plastics & Composites
Reach (xD)3xD
Size8.40mm
Cutting Diameter (DC) (Decimal Inch)0.3307
Cutting Diameter (DC) (mm)8.40
Shank Diameter (DCON) (Decimal Inch)0.3937
Shank Diameter (DCON) (mm)10.00
Usable Length (LU) (Decimal Inch)1.0315
Usable Length (LU) (mm)26.20
Flute Length (LCF) (Decimal Inch)1.4961
Flute Length (LCF) (mm)38.00
Overall Length (OAL) (Decimal Inch)3.1496
Overall Length (OAL) (mm)80.00
Shank Length (LS) (Decimal Inch)1.3386
Shank Length (LS) (mm)34.00
Point Angle (Degree)180
Cutting Diameter (DC) Tolerance (Decimal Inch)+.00024 / +.00083
Cutting Diameter (DC) Tolerance (mm)+.0060 / +.0210
Shank Diameter (DCON) Tolerance (ISO)h6
Shank TypeStraight
Weldon FlatNo
Coolant OptionInternal Coolant
Coating DescriptionTX (Ti-NAMITE-X)
Additional GeometryRight Hand Cut Direction (RHC)
Helix AngleRight Spiral
Helix Angle (Degree)15
Variable HelixNo
Center CuttingNo
Chip BreakerNo
Number of Margins4
Self CenteringYes

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