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1/4" Dia, 4 Flute, Ball Nose End Mill - 91281

SERIES: 01B

General Application End Mill

1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Di-NAMITE (Diamond) Coated, Series 01B, Ball Nose End Mill - 91281


SKU / EDP91281
CategorySolid Round Tools > Milling > General Application End Mills
Min Order Qty1
Series01B
Series DescriptionGeneral Application End Mill
High PerformanceNo
End ConfigurationBall Nose
Tool LengthLong
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)0.2500
Cutting Diameter (DC) (Fractional Inch)1/4
Cutting Diameter (DC) (mm)6.35
Shank Diameter (DCON) (Decimal Inch)0.2500
Shank Diameter (DCON) (Fractional Inch)1/4
Shank Diameter (DCON) (mm)6.35
Length of Cut (APMX) (Decimal Inch)0.7500
Length of Cut (APMX) (Fractional Inch)3/4
Length of Cut (APMX) (mm)19.05
Overall Length (LF) (Decimal Inch)2.5000
Overall Length (LF) (Fractional Inch)2-1/2
Overall Length (LF) (mm)63.50
Shank Length (LS) (Decimal Inch)1.7500
Shank Length (LS) (Fractional Inch)1-3/4
Shank Length (LS) (mm)44.45
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 DescriptionDiamond (Di-NAMITE)
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 91281
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1/4" Dia, 4 Flute, Ball Nose End Mill - 30046

SGS 1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series 01B, Ball Nose End Mill - 30046

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1/4" Dia, 4 Flute, Ball Nose End Mill - 39032

SGS 1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE-C (TiCN) Coated, Series 01B, Ball Nose End Mill - 39032

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1/4" Dia, 4 Flute, Ball Nose End Mill - 39132

SGS 1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE (TiN) Coated, Series 01B, Ball Nose End Mill - 39132

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1/4" Dia, 4 Flute, Ball Nose End Mill - 30132

SGS 1/4" Dia, 3/4" LOC, 1/4" Shank Dia, 4 Flute, 30 Degree Helix, Uncoated, Series 01B, Ball Nose End Mill - 30132

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