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1/4" Dia, 3 Flute, Corner Radius End Mill - 33347


SERIES: 33C
Series 33
1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 0.0200" Radius, 3 Flute, 32-48 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 33C, Series 33, Corner Radius End Mill - 33347
Feature & Benefits
Specially engineered step core design provides stability for aggressive ramping and rigidity when flutes are completely engaged
Open design at axial end accommodates material flow and load reduction during machining operations
Enhanced corner geometry with tight tolerance corner radii
Recommended for materials ≤ 45 HRc (≤ 420 Bhn)
List Price: $46.67
U.S. stocked items ship next day
Total Available U.S. :136
Series DescriptionSeries 33
High PerformanceYes
End ConfigurationCorner Radius
Unit (inch/mm)inch
Number of Flutes3
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)0.2500
Cutting Diameter (DC) (mm)6.35
Shank Diameter (DCON) (Decimal Inch)0.2500
Shank Diameter (DCON) (mm)6.35
Length of Cut (APMX) (Decimal Inch)0.7500
Length of Cut (APMX) (mm)19.05
Overall Length (LF) (Decimal Inch)2.5000
Overall Length (LF) (mm)63.50
Corner Radius (RE) (Decimal Inch)0.0200
Corner Radius (RE) (mm)0.51
Shank Length (LS) (Decimal Inch)1.7500
Cutting Diameter (DC) Tolerance (Decimal Inch)+0.0000/-0.0012
Cutting Diameter (DC) Tolerance (mm)+0.000/-0.030
Shank Diameter (DCON) Tolerance (ISO)h6
Corner Radius (RE) Tolerance (Decimal Inch)+0.0000/-0.0020
Corner Radius (RE) Tolerance (mm)+0.000/-0.050
Coolant OptionExternal Coolant
Coating DescriptionAlTiN (Ti-NAMITE-A)
Additional GeometryRight Hand Cut Direction (RHC)
Helix AngleVariable Right Spiral
Helix Angle (Degree)32-48
Variable HelixYes
Chip BreakerNo
US Stock136
Shank TypeStraight
Cutting Diameter (DC) (Fractional Inch)1/4
Length of Cut (APMX) (Fractional Inch)3/4
Overall Length (LF) (Fractional Inch)2-1/2
Shank Length (LS) (Fractional Inch)1-3/4
Rake AnglePositive
Shipping Weight0.0590
Center CuttingYes
Series33C
Weldon FlatNo
Shank Length (LS) (mm)44.45
End StyleRadius
Shank Diameter (DCON) (Fractional Inch)1/4
Tool LengthLong

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