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0.0550" Dia, 4 Flute, Square End End Mill - 09861

SERIES: M4S

Micro End Mill

0.0550" Dia, 0.1650" LOC, 0.4400" Reach, 1/8" Shank Dia, 4 Flute, 30 Degree Helix, Uncoated, Series M4S, Micro, Square End End Mill - 09861

Feature & Benefits

  • Four flute design allows for higher feed rates and decreased deflection, improving productivity and surface finish
  • Proprietary coating allows for superior chip flow, driving industry leading productivity and value, even at low spindle speeds
  • High performance carbide substrate designed specifically for Micro Tool applications
  • Advanced geometries that extend tool life, reduce chatter, cut cycle times, and improve part quality
  • Manufactured in accordance with KSPT ISO certified quality procedures

SKU / EDP09861
CategorySolid Round Tools > Milling > Micro End Mills
Min Order Qty1
SeriesM4S
Series DescriptionMicro End Mill
High PerformanceNo
End ConfigurationSquare End
Tool LengthLong Reach Neck
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
Reach (xD)8xD
LOC (xD)3xD
Cutting Diameter (DC) (Decimal Inch)0.0550
Cutting Diameter (DC) (mm)1.40
Shank Diameter (DCON) (Decimal Inch)0.1250
Shank Diameter (DCON) (Fractional Inch)1/8
Shank Diameter (DCON) (mm)3.18
Length of Cut (APMX) (Decimal Inch)0.1650
Length of Cut (APMX) (mm)4.19
Reach (LU) (Decimal Inch)0.4400
Reach (LU) (mm)11.18
Overall Length (LF) (Decimal Inch)2.0000
Overall Length (LF) (Fractional Inch)2
Overall Length (LF) (mm)50.80
Neck Diameter (DN) (Decimal Inch)0.6100
Neck Diameter (DN) (mm)15.49
Cutting Diameter (DC) Tolerance (Decimal Inch)+0.0000/-0.0010
Cutting Diameter (DC) Tolerance (mm)+0.000/-0.025
Shank Diameter (DCON) Tolerance (ISO)h6
Shank TypeStraight
Weldon FlatNo
Coolant OptionExternal Coolant
Coating DescriptionBright/Uncoated
Additional GeometryRight Hand Cut Direction (RHC)
Rake AnglePositive
Profile Angle (Degree)15
Helix AngleRight Spiral
Helix Angle (Degree)30
Variable HelixNo
Center CuttingYes
Chip BreakerNo

Alternative Products SKU / EDP to 09861
Series_M4_REACH_TA.jpg

0.0550" Dia, 4 Flute, Square End End Mill - 03465

SGS 0.0550" Dia, 0.1650" LOC, 0.4400" Reach, 1/8" Shank Dia, 4 Flute, 30 Degree Helix, Ti-NAMITE-A (AlTiN) Coated, Series M4S, Micro, Square End End Mill - 03465

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