GARR TOOL 620M Square End Mill — representative series image; exact dimensions vary by EDP

Representative series image. Refer to the selected EDP for exact specifications.

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GARR TOOL 620M Square End Mill

GARR TOOL 620M Square End Mill

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General-purpose, extra-length square-end mill with 2 flutes. Solid submicron-grain carbide with a center-cutting design.

SKU: 41010

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    GARR TOOL 620M Square End Mill — representative series image; exact dimensions vary by EDP

    GARR TOOL 620M Square End Mill

    Pricing by quote

    Technical Specifications

    GARR TOOL 620M Square End Mill

    Exact tool data. Clear decisions.

    Compare the configurations in this series. Dimensions and geometry apply to the selected EDP.

    Tool configurations

    GARR TOOL 620M Square End Mill — manufacturer dimension reference drawing
    Dimension reference
    d1
    Cutting diameter
    d2
    Shank diameter
    l2
    Length of cut
    l1
    Overall length

    Manufacturer drawing for dimension reference. Refer to the selected EDP for its dimensions.

    Scroll across for all specifications →
    Dimensions: inches. Values preserved from GARR.
    EDP Cutting diameter d1 (in)Shank diameter d2 (in)Length of cut l2 (in)Overall length l1 (in)FlutesEnd typeWeight (lb)
    41010 1/81/85/822SQ0.0200
    41020 1/81/83/432SQ0.0200
    41030 1/81/8132SQ0.0200
    41040 3/163/16132SQ0.0400
    41050 3/163/161-1/832SQ0.0400
    41060 3/163/16142SQ0.0600
    41070 1/41/4132SQ0.0600
    41080 1/41/4142SQ0.0800
    41090 1/41/41-1/242SQ0.0800
    41100 1/41/41-1/262SQ0.1200
    41110 5/165/16132SQ0.1000
    41120 5/165/16142SQ0.1300
    41130 5/165/161-5/842SQ0.1300
    41140 5/165/161-1/262SQ0.2000
    41150 3/83/8132SQ0.1800
    41160 3/83/8142SQ0.2400
    41170 3/83/8242SQ0.2400
    41180 3/83/81-1/262SQ0.3200
    41190 3/83/8362SQ0.3200
    41200 7/167/16142SQ0.3000
    41210 7/167/16242SQ0.2600
    41220 7/167/161-1/262SQ0.4600
    41230 7/167/16362SQ0.4000
    41240 1/21/2142SQ0.3000
    41250 1/21/2242SQ0.3000
    41260 1/21/21-1/262SQ0.4600
    41270 1/21/2362SQ0.4600
    41280 9/169/16262SQ0.7100
    41290 9/169/16362SQ0.6300
    41300 5/85/8262SQ0.8000
    41310 5/85/8362SQ0.8000
    41320 3/43/4262SQ1.2000
    41330 3/43/4362SQ1.2000
    41340 11262SQ2.1800
    41350 11362SQ2.1800

    Technical overview

    Tool class
    General Purpose
    Geometry
    Extra Length - Square End - 2 Flutes
    Construction
    Solid submicron grain carbide end mill - center cutting
    Technical details
    Extended reach
    Configuration notes
    Can be modified with a neck within 48 hours
    Tolerances
    flute dia. +.000-.002" (+0.000-0.050mm) · shank dia. h6
    Advantages

    Versatility
    Extremely versatile

    Applications & compatible materials

    Applications
    • Milling

    Speeds & chiploads

    GARR’s general-purpose milling guide. Starting ranges, organized by workpiece and hardness.

    Match the guide to your tool. Confirm the selected series, coating, workpiece, and hardness against GARR’s catalog before applying these ranges. The linked general-purpose guide covers multiple tool configurations.

    HRC Rockwell C hardness · Vc Cutting speed · Fz Chipload per tooth

    Swipe across to compare cutter diameters →

    Cutting speed: ft/min (SFM) · Chipload: in/tooth
    Workpiece / materialHRCVc ft/minØ 1/16"Fz in/toothØ 1/8"Fz in/toothØ 3/16"Fz in/toothØ 1/4"Fz in/toothØ 5/16"Fz in/toothØ 3/8"Fz in/toothØ 1/2"Fz in/toothØ 5/8"Fz in/toothØ 3/4"Fz in/toothØ 1"Fz in/tooth
    SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome< 4060 - 90.0004" - .0008".0004" - .0008".0004" - .0008".0005" - .0010".0008" - .0015".0010" - .0018".0015" - .0030".0020" - .0030".0025" - .0035".0025" - .0035"
    SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome> 4050 - 80.0003" - .0006".0003" - .0006".0003" - .0006".0003" - .0008".0005" - .0010".0008" - .0015".0010" - .0015".0015" - .0025".0015" - .0020".0015" - .0020"
    SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel< 4055 - 90.0004" - .0008".0004" - .0008".0004" - .0008".0005" - .0010".0008" - .0015".0010" - .0018".0015" - .0030".0020" - .0030".0025" - .0035".0025" - .0035"
    SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel> 4045 - 80.0003" - .0006".0003" - .0006".0003" - .0006".0003" - .0008".0005" - .0010".0008" - .0015".0010" - .0015".0015" - .0025".0015" - .0020".0015" - .0020"
    SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy< 4055 - 90.0004" - .0008".0004" - .0008".0004" - .0008".0005" - .0010".0008" - .0015".0010" - .0018".0015" - .0030".0020" - .0030".0025" - .0035".0025" - .0035"
    SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy> 4050 - 80.0003" - .0006".0003" - .0006".0003" - .0006".0003" - .0008".0005" - .0010".0008" - .0015".0010" - .0015".0015" - .0025".0015" - .0020".0015" - .0020"
    STitanium AlloysCommercially Pure, 6Al-4V, Astm 1/2/3, 6Al-25N-4Zr-2Mo-Si—100 - 150.0003" - .0008".0003" - .0008".0005" - .0012".0005" - .0012".0008" - .0015".0010" - .0015".0013" - .0020".0018" - .0025".0020" - .0030".0025" - .0035"
    STitanium Alloys5553 / Beta Titanium—90 - 120.0003" - .0008".0003" - .0008".0004" - .0010".0004" - .0010".0005" - .0012".0008" - .0014".0010" - .0016".0010" - .0020".0015" - .0025".0015" - .0025"
    MStainless Steels13/8, 15/5, 17-4, pH Types< 40100 - 150.0002" - .0005".0003" - .0006".0003" - .0007".0006" - .0009".0008" - .0012".0013" - .0018".0010" - .0020".0012" - .0025".0012" - .0020".0020" - .0028"
    MStainless Steels13/8, 15/5, 17-4, pH Types> 4080 - 100.0002" - .0004".0002" - .0004".0002" - .0006".0003" - .0007".0004" - .0008".0007" - .0012".0008" - .0015".0010" - .0016".0013" - .0017".0015" - .0020"
    MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic< 40100 - 150.0003" - .0006".0003" - .0007".0005" - .0010".0008" - .0015".0009" - .0013".0010" - .0018".0015" - .0020".0018" - .0022".0018" - .0035".0023" - .0036"
    MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic> 4080 - 100.0002" - .0004".0002" - .0005".0004" - .0007".0005" - .0010".0005" - .0010".0007" - .0010".0009" - .0015".0012" - .0018".0015" - .0025".0020" - .0030"
    MStainless Steels400 Series - 403, 405, 420, 455< 40150 - 200.0005" - .0008".0007" - .0010".0009" - .0015".0009" - .0014".0011" - .0015".0013" - .0018".0015" - .0025".0020" - .0035".0022" - .0040".0030" - .0046"
    MStainless Steels400 Series - 403, 405, 420, 455> 40100 - 150.0003" - .0007".0004" - .0008".0006" - .0010".0007" - .0011".0008" - .0012".0009" - .0015".0012" - .0020".0018" - .0030".0020" - .0035".0024" - .0042"
    PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1< 40150 - 200.0003" - .0008".0003" - .0008".0005" - .0010".0010" - .0015".0012" - .0020".0012" - .0020".0014" - .0024".0018" - .0026".0020" - .0028".0022" - .0030"
    PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1> 40100 - 150.0003" - .0005".0003" - .0005".0003" - .0008".0005" - .0010".0005" - .0010".0005" - .0010".0010" - .0015".0012" - .0018".0014" - .0020".0015" - .0022"
    PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620< 40150 - 200.0003" - .0008".0003" - .0008".0005" - .0010".0010" - .0015".0012" - .0020".0012" - .0020".0014" - .0024".0018" - .0026".0020" - .0028".0022" - .0030"
    PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620> 40100 - 150.0003" - .0005".0003" - .0005".0003" - .0008".0005" - .0010".0005" - .0010".0005" - .0010".0010" - .0015".0012" - .0018".0014" - .0020".0015" - .0022"
    PCarbon Steels1000’s - 1018, 1020, 12L14< 40150 - 200.0003" - .0008".0003" - .0008".0005" - .0010".0010" - .0015".0012" - .0020".0012" - .0020".0014" - .0024".0018" - .0026".0020" - .0028".0022" - .0030"
    KCast MaterialDuctile Iron—175 - 225.0005" - .0008".0008" - .0012".0010" - .0015".0015" - .0025".0015" - .0025".0020" - .0030".0025" - .0035".0035" - .0045".0035" - .0045".0045" - .0055"
    KCast MaterialGray Iron—175 - 225.0005" - .0008".0008" - .0012".0010" - .0015".0015" - .0025".0015" - .0025".0020" - .0030".0025" - .0035".0035" - .0045".0035" - .0045".0045" - .0055"
    NNon-FerrousAluminum—300 - 500.0003" - .0005".0006" - .0010".0008" - .0014".0012" - .0020".0014" - .0028".0020" - .0030".0035" - .0048".0050" - .0060".0058" - .0070".0068" - .0090"
    NNon-FerrousMagnesium—300 - 500.0003" - .0005".0006" - .0010".0008" - .0014".0012" - .0020".0014" - .0028".0020" - .0030".0035" - .0048".0050" - .0060".0058" - .0070".0068" - .0090"
    NNon-FerrousCopper—250 - 450.0003" - .0005".0006" - .0010".0008" - .0014".0012" - .0020".0014" - .0028".0020" - .0030".0035" - .0048".0050" - .0060".0058" - .0070".0068" - .0090"
    NNon-FerrousBrass, Bronze—200 - 400.0003" - .0005".0006" - .0010".0008" - .0014".0012" - .0020".0014" - .0028".0020" - .0030".0035" - .0048".0050" - .0060".0058" - .0070".0068" - .0090"
    OComposite (Non-Iso)Fiberglass, Plastics, G10—200 - 400.0003" - .0005".0006" - .0010".0008" - .0014".0012" - .0020".0014" - .0028".0020" - .0030".0035" - .0048".0050" - .0060".0058" - .0070".0068" - .0090"
    Manufacturer starting parameters

    GARR states these are starting parameters only. Optimum conditions may allow higher results. When plunging into solid material, reduce feed by approximately 50%. The guide uses 20% of tool diameter for basic engagement parameters.

    Use the actual workpiece, tool diameter, machine rigidity, and setup to establish safe cutting conditions. Graphite requires its separate manufacturer chart.

    Technical documents

    Cutting parameters, setup guidance, and the series catalog.

    Cutting parameters · Inch PDF · 68 KB · English View PDF Cutting parameters · Metric PDF · 64 KB · English View PDF Series catalog PDF · 342 KB · English View PDF

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