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    Sumitomo Electric Hardmetal SUMIBORON cBN Insert CNMA1204

    Sumitomo Electric Hardmetal SUMIBORON cBN Insert CNMA1204

    SUMIBORON cBN insert CNMA1204 (80° rhombic, negative (0° clearance)) for turning hardened steel, cast iron, sintered alloys and heat-resistant alloys.

    Key features

    • Grades: BN2000, BNX20, BN1000, BN350, BN500
    • NU- tipped single-corner types
    NU-CNMA120402 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.2 | Cutting edge length (mm): 2.5 | Grade: BN2000 | Stock: Yes
    NU-CNMA120404 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BNX20 | Stock: Yes
    NU-CNMA120404 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN1000 | Stock: Yes
    NU-CNMA120404 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN2000 | Stock: Yes
    NU-CNMA120404 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN350 | Stock: Yes
    NU-CNMA120404 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN500 | Stock: Yes
    NU-CNMA120408 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BNX20 | Stock: Yes
    NU-CNMA120408 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN1000 | Stock: Yes
    NU-CNMA120408 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN2000 | Stock: Yes
    NU-CNMA120408 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN350 | Stock: Yes
    NU-CNMA120408 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN500 | Stock: Yes
    NU-CNMA120412 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BNX20 | Stock: Yes
    NU-CNMA120412 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN1000 | Stock: Yes
    NU-CNMA120412 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN2000 | Stock: Yes
    NU-CNMA120412 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN350 | Stock: Yes
    NU-CNMA120412 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120404 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120404 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120404 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120404 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120404 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120408 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120408 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120408 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120408 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120408 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120412 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120412 BN1000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120412 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120412 BN350 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120412 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN500 | Stock: Yes
    CNMA120404 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BNX20 | Stock: Yes
    CNMA120404 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BN2000 | Stock: Yes
    CNMA120404 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BN500 | Stock: Yes
    CNMA120408 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BNX20 | Stock: Yes
    CNMA120408 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BN2000 | Stock: Yes
    CNMA120408 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BN500 | Stock: Yes
    CNMA120412 BNX20 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BNX20 | Stock: Yes
    CNMA120412 BN2000 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BN2000 | Stock: Yes
    CNMA120412 BN500 IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BN500 | Stock: Yes
    cBN InsertsSumitomo Electric Hardmetal
    40 product codes available in this family
    Sourced direct from KoreaExport-ready supplyCompetitive pricing
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    Sumitomo Electric Hardmetal SUMIBORON cBN Insert CNMA1204

    Brand Sumitomo Electric Hardmetal·cBN Inserts

    Available part numbers (40)

    NU-CNMA120402 BN2000, NU-CNMA120404 BNX20, NU-CNMA120404 BN1000, NU-CNMA120404 BN2000, NU-CNMA120404 BN350, NU-CNMA120404 BN500, NU-CNMA120408 BNX20, NU-CNMA120408 BN1000, NU-CNMA120408 BN2000, NU-CNMA120408 BN350 + 30 more — see full table ↓

    How to order

    Send the Sumitomo Electric Hardmetal part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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    Product codes & specifications
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    Product codeSpec
    NU-CNMA120402 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.2 | Cutting edge length (mm): 2.5 | Grade: BN2000 | Stock: Yes
    NU-CNMA120404 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BNX20 | Stock: Yes
    NU-CNMA120404 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN1000 | Stock: Yes
    NU-CNMA120404 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN2000 | Stock: Yes
    NU-CNMA120404 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN350 | Stock: Yes
    NU-CNMA120404 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN500 | Stock: Yes
    NU-CNMA120408 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BNX20 | Stock: Yes
    NU-CNMA120408 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN1000 | Stock: Yes
    NU-CNMA120408 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN2000 | Stock: Yes
    NU-CNMA120408 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN350 | Stock: Yes
    NU-CNMA120408 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN500 | Stock: Yes
    NU-CNMA120412 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BNX20 | Stock: Yes
    NU-CNMA120412 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN1000 | Stock: Yes
    NU-CNMA120412 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN2000 | Stock: Yes
    NU-CNMA120412 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN350 | Stock: Yes
    NU-CNMA120412 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120404 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120404 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120404 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120404 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120404 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.4 | Cutting edge length (mm): 2.4 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120408 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120408 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120408 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120408 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120408 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 2.3 | Grade: BN500 | Stock: Yes
    T-NU-CNMA120412 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BNX20 | Stock: Yes
    T-NU-CNMA120412 BN1000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN1000 | Stock: Yes
    T-NU-CNMA120412 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN2000 | Stock: Yes
    T-NU-CNMA120412 BN350IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN350 | Stock: Yes
    T-NU-CNMA120412 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 10 | Corners: 1 | RE (mm): 1.2 | Cutting edge length (mm): 2.2 | Grade: BN500 | Stock: Yes
    CNMA120404 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BNX20 | Stock: Yes
    CNMA120404 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BN2000 | Stock: Yes
    CNMA120404 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 0.4 | Cutting edge length (mm): 4.6 | Grade: BN500 | Stock: Yes
    CNMA120408 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BNX20 | Stock: Yes
    CNMA120408 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BN2000 | Stock: Yes
    CNMA120408 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | Pack unit: 1 | Corners: 1 | RE (mm): 0.8 | Cutting edge length (mm): 4.5 | Grade: BN500 | Stock: Yes
    CNMA120412 BNX20IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BNX20 | Stock: Yes
    CNMA120412 BN2000IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BN2000 | Stock: Yes
    CNMA120412 BN500IC (mm): 12.7 | Thickness (mm): 4.76 | Hole diameter (mm): 5.16 | RE (mm): 1.2 | Cutting edge length (mm): 4.4 | Grade: BN500 | Stock: Yes

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