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1/2" Dia, 7 Flute, Chip Breaker Corner Radius End Mill - 77203


SERIES: 77C
H-Carb
1/2" Dia, 2" LOC, 1/2" Shank Dia, 0.0300" Radius, 7 Flute, 37 Degree Helix, Ti-NAMITE-M (TM) Coated, Series 77C, H-Carb, Chip Breaker Corner Radius End Mill - 77203
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
List Price: $224.77
U.S. stocked items ship next day
Total Available U.S. :25
Series DescriptionH-Carb
High PerformanceYes
End ConfigurationChip Breaker (CR)
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)0.5000
Cutting Diameter (DC) (Fractional Inch)1/2
Cutting Diameter (DC) (mm)12.70
Shank Diameter (DCON) (Decimal Inch)0.5000
Shank Diameter (DCON) (mm)12.70
Length of Cut (APMX) (Decimal Inch)2.0000
Length of Cut (APMX) (Fractional Inch)2
Length of Cut (APMX) (mm)50.80
Overall Length (LF) (Decimal Inch)4.0000
Overall Length (LF) (Fractional Inch)4
Overall Length (LF) (mm)101.60
Corner Radius (RE) (Decimal Inch)0.0300
Corner Radius (RE) (mm)0.76
Non-Cutting Center Diameter (NCD) (Decimal Inch)0.1690
Non-Cutting Center Diameter (NCD) (mm)4.29
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 / -0.00043
Shank Diameter (DCON) Tolerance (mm)+0.0000 / -0.0011
Corner Radius (RE) Tolerance (Decimal Inch)+0.0000/-0.0020
Corner Radius (RE) Tolerance (mm)+0.000/-0.050
Shank TypeStraight
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
Shipping Weight0.3420
Series77C
Weldon FlatNo
US Stock25
Shank Diameter (DCON) (Fractional Inch)1/2
Tool LengthExtra Long

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