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5/16" Dia, 4 Flute, Ball Nose End Mill - 31921

SERIES: E1B

General Application End Mill

5/16" Dia, 1-5/8" LOC, 5/16" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE-C (TiCN) Coated, Series E1B, Ball Nose End Mill - 31921


SKU / EDP31921
CategorySolid Round Tools > Milling > General Application End Mills
Min Order Qty1
SeriesE1B
Series DescriptionGeneral Application End Mill
High PerformanceNo
End ConfigurationBall Nose
Tool LengthExtra Long
Unit (inch/mm)inch
Number of Flutes4
Primary Workpiece Material(P) Steel|(M) Stainless Steel|(K) Cast Iron|(N) Non-Ferrous Materials|(S) High Temp Alloy
Secondary Workpiece Material(H) Hardened Materials
Cutting Diameter (DC) (Decimal Inch)0.3125
Cutting Diameter (DC) (Fractional Inch)5/16
Cutting Diameter (DC) (mm)7.94
Shank Diameter (DCON) (Decimal Inch)0.3125
Shank Diameter (DCON) (Fractional Inch)5/16
Shank Diameter (DCON) (mm)7.94
Length of Cut (APMX) (Decimal Inch)1.6250
Length of Cut (APMX) (Fractional Inch)1-5/8
Length of Cut (APMX) (mm)41.28
Overall Length (LF) (Decimal Inch)4.0000
Overall Length (LF) (Fractional Inch)4
Overall Length (LF) (mm)101.60
Shank Length (LS) (Decimal Inch)2.3750
Shank Length (LS) (Fractional Inch)2-3/8
Shank Length (LS) (mm)60.33
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
Corner Radius (RE) Tolerance (Decimal Inch)+0.0000/-0.0010
Corner Radius (RE) Tolerance (mm)+0.000/-0.025
Shank TypeStraight
Weldon FlatNo
Coolant OptionExternal Coolant
Coating DescriptionTiCN (Ti-NAMITE-C)
Additional GeometryRight Hand Cut Direction (RHC)
Rake AnglePositive
Helix AngleRight Spiral
Helix Angle (Degree)30
Variable HelixNo
Center CuttingYes
Chip BreakerNo

Alternative Products SKU / EDP to 31921
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5/16" Dia, 4 Flute, Ball Nose End Mill - 31931

SGS 5/16" Dia, 1-5/8" LOC, 5/16" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series E1B, Ball Nose End Mill - 31931

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5/16" Dia, 4 Flute, Ball Nose End Mill - 31906

SGS 5/16" Dia, 1-5/8" LOC, 5/16" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE (TiN) Coated, Series E1B, Ball Nose End Mill - 31906

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5/16" Dia, 4 Flute, Ball Nose End Mill - 33126

SGS 5/16" Dia, 1-5/8" LOC, 5/16" Shank Dia, 4 Flute, 30 Degree Helix, Uncoated, Series E1B, Ball Nose End Mill - 33126

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5/16" Dia, 4 Flute, Ball Nose End Mill - 93342

SGS 5/16" Dia, 1-5/8" LOC, 5/16" Shank Dia, 4 Flute, 30 Degree Helix, Amorphous Diamond Coated, Series E1B, Ball Nose End Mill - 93342

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