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    SEFAS Chamfering Inserts • R021 • 41°/45°

    SEFAS™ Chamfering Inserts

    Material Number2272789

    ISO Catalog ID3.42807R021ANSI Catalog ID3.42807R021

    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
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    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
    SEFAS CHAMFER Holemaking - 2272789 - Kennametal
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    $29.38/each
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    • P Steel
    • M Stainless Steel
    • K Cast Iron
    • N Non-Ferrous
    • S High-Temp Alloys
    • H Hardened Materials
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    Drawings for 2272789
    Metric
    Inch
    Material Number2272789
    ISO Catalog ID3.42807R021
    ANSI Catalog ID3.42807R021
    GradeKC7015
    [EPSILONR] Profile Angle45
    [S] Insert Thickness3.98 mm
    [S] Insert Thickness.1567 in
    [W1] Insert Width 12 mm
    [W1] Insert Width .4724 in
    See all Product Variants

    Workpiece Materials

    • Steel
    • Stainless Steel
    • Cast Iron
    • Non-Ferrous
    • High-Temp Alloys
    • Hardened Materials

    Grades

    KC7015

    PVD-TIN coated fine grade carbide
    High egde strength and transfers rupture strength
    For difficult cutting tasks with interrupted cuts
    First Choice in solid carbide drills for many steel materials and tough cast iron materials
    Also for indexable inserts

    Features and benefits

    • Use RO21 SEFAS Chamfering Inserts when using KenTIP or KSEM Drills.

    Create Solution to calculate Feeds and Speeds

    After creating a solution just choose the Feeds & Speeds icon and our system will provide recommendations. You can customize the information by adding your machine and specifications or make adjustments using the sliders.

    Dimension

    K210, K254, K284K211, K222, K255, K285, K411K212, K256unalloyed and low-alloy steel, unalloyed and alloy steel, and cast iron, high-alloy steel and stainless steel
    drill diameter D1TBminTBmaxTBminTBmaxTBminTBmaxTS100TS80TSmax
    .156-.188.236.866.4721.102.8661.102.047.071.098
    .188-.250.3541.024.7091.3781.2201.890.059.087.118
    .250-.266.4331.102.9061.5751.6542.323.079.118.157
    .266-.313.4331.102.9061.5751.6542.323.098.157.197
    .313.-.375.5121.1421.0631.6931.9292.559.118.197.236
    .375-.438.5511.2601.1421.8502.0082.717.138.197.276
    .438-.500.5911.3781.2202.0082.2052.992.157.236.315
    .500-.563.8271.4171.4962.0872.7173.307.157.236.315
    .563-.625.8661.5751.5752.2833.0713.780.157.236.315
    .625-.6881.2991.8502.0872.6383.7404.291.157.236.315
    .688-.7501.3782.0082.1262.7564.0554.685.157.236.315
    .750-.8131.5522.1812.2602.8904.3865.016.157.236.315
    .813-.8751.7022.2932.7263.3174.6945.285.157.236.315
    .875-.9381.7352.4042.8763.5464.8845.554.157.236.315
    .938-1.0101.8462.5153.0673.7365.1935.862.157.236.315
    B210A, B221A, B224A, B254A, B284A, B291A, B707A, B966A, B976AB211A, B222A, B225A, B285A, B292A, B411A B708A, B977AB212A, B256A B709A, B978Aunalloyed and low-alloy steel unalloyed and alloy steel, and cast iron high alloy steel and stainless steel
    drill diameter D1TBminTBmaxTBminTBmaxTBminTBmaxTS100TS80TSmax
    4,0-4,7417122920361,21,82,5
    4,7-6,0420203527431,52,23,0
    6,0-7,011242340324923,04,0
    7,0-8,01128234042592,54,05,0
    8,0-10,01329274346622,54,05,0
    10,0-12,01535315154743,55,07,0
    12,0-14,02136385369844,06,08,0
    14,0-16,02240405878964,06,08,0
    16,0-18,031455165931074,06,08,0
    18,0-20,0345056721031194,06,08,0
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    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    1191058
    3.37120R732
    3.37120R732
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    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    1191061
    3.37140R732
    3.37140R732
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    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    1245737
    3.37160R732
    3.37160R732
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    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    SEFAS 2° Whistle Notch (WN) • for use with Metric Drills
    1245738
    3.37180R732
    3.37180R732
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    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    1245741
    3.37532R012
    3.37532R012
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    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    1245742
    3.37534R014
    3.37534R014
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    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    1245743
    3.37538R016
    3.37538R016
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    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    1245744
    3.37540R018
    3.37540R018
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    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    Chamfer Rings • For Use with Metric Kennametal Hydraulic Chucks • For Use with Inch or Metric Drills
    1245745
    3.37542R020
    3.37542R020
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    Round Shank • For Use with Metric Drills • Inch
    Round Shank • For Use with Metric Drills • Inch
    1604273
    SEF100120RSS125M
    SEF100120RSS125M
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