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Letter X, 180 Degree Point, Solid Carbide Drill - 58903

SERIES: 146U

Hi-PerCarb 146U Flat Bottom

Letter X, 180 Degree Point, 0.4724" Shank Dia, 5.3150" OAL, 2 Flute, 5xD, Coolant-Through, Ti-NAMITE-X (TX) Coated, Series 146U, Hi-PerCarb 146U Flat Bottom, Solid Carbide Drill - 58903

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 / EDP58903
CategorySolid Round Tools > Holemaking > High Performance Drills
Min Order Qty1
Series146U
Series DescriptionHi-PerCarb 146U Flat Bottom
High PerformanceYes
Unit (inch/mm)inch
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)5xD
SizeX
Cutting Diameter (DC) (Decimal Inch)0.3970
Cutting Diameter (DC) (mm)10.08
Shank Diameter (DCON) (Decimal Inch)0.4724
Shank Diameter (DCON) (mm)12.00
Usable Length (LU) (Decimal Inch)2.0244
Usable Length (LU) (mm)51.42
Flute Length (LCF) (Decimal Inch)2.5984
Flute Length (LCF) (mm)66.00
Overall Length (OAL) (Decimal Inch)5.3150
Overall Length (OAL) (mm)135.00
Shank Length (LS) (Decimal Inch)2.2441
Shank Length (LS) (mm)57.00
Point Angle (Degree)180
Cutting Diameter (DC) Tolerance (Decimal Inch)+.00028 / +.00098
Cutting Diameter (DC) Tolerance (mm)+.0070 / +.0250
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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