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20.00mm Dia, 7 Flute, Chip Breaker Corner Radius End Mill - 74669

SERIES: 77R

H-Carb

20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 4.00mm Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 77MC, H-Carb, Chip Breaker Corner Radius End Mill - 74669

Feature & Benefits

  • Specializes in deep axial trochoidal and high-speed milling applications
  • Optimized core improves rigidity, chip flow and reduces deflection
  • Chip Breaker design breaks up chips from the long flute length allowing for better chip flow and evacuation in deep pocketing operations

SKU / EDP74669
CategorySolid Round Tools > Milling > High Performance End Mills
Min Order Qty1
Series77R
Series DescriptionH-Carb
High PerformanceYes
End ConfigurationChip Breaker (CR)
Tool LengthExtra Long
Unit (inch/mm)mm
Number of Flutes7
Primary Workpiece Material(P) Steel|(M) Stainless Steel|(K) Cast Iron|(S) High Temp Alloy
Secondary Workpiece Material(H) Hardened Materials
Reach (xD)4xD
Cutting Diameter (DC) (Decimal Inch)0.7874
Cutting Diameter (DC) (mm)20.00
Shank Diameter (DCON) (Decimal Inch)0.7874
Shank Diameter (DCON) (mm)20.00
Length of Cut (APMX) (Decimal Inch)3.1496
Length of Cut (APMX) (mm)80.00
Overall Length (LF) (Decimal Inch)5.5118
Overall Length (LF) (mm)140.00
Corner Radius (RE) (Decimal Inch)0.1575
Corner Radius (RE) (mm)4.00
Non-Cutting Center Diameter (NCD) (Decimal Inch)0.2661
Non-Cutting Center Diameter (NCD) (mm)6.76
Cutting Diameter (DC) Tolerance (Decimal Inch)+0.0000/-0.0020
Cutting Diameter (DC) Tolerance (mm)+0.000/-0.050
Shank Diameter (DCON) Tolerance (ISO)h6
Shank Diameter (DCON) Tolerance (Decimal Inch)+0.0000 / -0.00051
Shank Diameter (DCON) Tolerance (mm)+0.0000 / -0.0013
Corner Radius (RE) Tolerance (Decimal Inch)+0.0000/-0.0020
Corner Radius (RE) Tolerance (mm)+0.000/-0.050
Shank TypeStraight
Weldon FlatNo
Coolant OptionExternal Coolant
Coating DescriptionAlTiN (Ti-NAMITE-A)
Additional GeometryChip Breaker / Right Hand Cut Direction (RHC)
Rake AnglePositive
Helix AngleRight Spiral
Helix Angle (Degree)37
Variable HelixNo
Center CuttingNo
Chip BreakerYes

Alternative Products SKU / EDP to 74669
Series_77CR_TA.jpg

20.00mm Dia, 7 Flute, Corner Radius End Mill - 74668

SGS 20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 4.00mm Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 77MC, H-Carb, Corner Radius End Mill - 74668

Series_77CR_TM.jpg

20.00mm Dia, 7 Flute, Corner Radius End Mill - 74670

SGS 20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 4.00mm Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77MC, H-Carb, Corner Radius End Mill - 74670

Series_77CB_TM.jpg

20.00mm Dia, 7 Flute, Chip Breaker Corner Radius End Mill - 74671

SGS 20.00mm Dia, 80.00mm LOC, 20.00mm Shank Dia, 4.00mm Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77MC, H-Carb, Chip Breaker Corner Radius End Mill - 74671

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