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3/4" Dia, 7 Flute, Chip Breaker Corner Radius End Mill - 77271

SERIES: 77C

H-Carb

3/4" Dia, 2-1/4" LOC, 3/4" Shank Dia, 0.0600" Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77C, H-Carb, Chip Breaker Corner Radius End Mill - 77271

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 / EDP77271
CategorySolid Round Tools > Milling > High Performance End Mills
Min Order Qty1
Series77C
Series DescriptionH-Carb
High PerformanceYes
End ConfigurationChip Breaker (CR)
Tool LengthLong
Unit (inch/mm)inch
Number of Flutes7
Primary Workpiece Material(P) Steel|(M) Stainless Steel|(K) Cast Iron|(S) High Temp Alloy
Secondary Workpiece Material(H) Hardened Materials
Cutting Diameter (DC) (Decimal Inch)0.7500
Cutting Diameter (DC) (Fractional Inch)3/4
Cutting Diameter (DC) (mm)19.05
Shank Diameter (DCON) (Decimal Inch)0.7500
Shank Diameter (DCON) (Fractional Inch)3/4
Shank Diameter (DCON) (mm)19.05
Length of Cut (APMX) (Decimal Inch)2.2500
Length of Cut (APMX) (Fractional Inch)2-1/4
Length of Cut (APMX) (mm)57.15
Overall Length (LF) (Decimal Inch)4.5000
Overall Length (LF) (Fractional Inch)4-1/2
Overall Length (LF) (mm)114.30
Corner Radius (RE) (Decimal Inch)0.0600
Corner Radius (RE) (mm)1.52
Non-Cutting Center Diameter (NCD) (Decimal Inch)0.2535
Non-Cutting Center Diameter (NCD) (mm)6.44
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 DescriptionTM (Ti-NAMITE-M)
Additional GeometryChip Breaker / Right Hand Cut Direction (RHC)
Rake AnglePositive
Helix AngleRight Spiral
Helix Angle (Degree)37
Variable HelixNo
Center CuttingNo
Chip BreakerYes

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