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    CB7125

    This CBN grade is your first choice for case and induction hardened steels. With its medium content of boron nitride, it is suitable for light to medium interrupted cuts.

    Benefits and features

    • PVD coating with good fracture resistance
    • Stable and predictable tool life
    • Efficient machining with good surface finish

    High performance hard part turning inserts

    The new generation CBN grades are specifically designed to handle typical hard part turning machining challenges, such as surface and dimensional tolerance demands with competitive tool life, most efficiently.

    Learn more

    Achieve Good Surface Finish in HPT

    Achieve Good Surface Finish in HPT

    Hard part turning has been proven to reduce machining time and costs by 70% or more.

    CBN insert with integral chip breaker

    CBN insert with integral chip breaker

    Increase productivity with a single cut strategy for hard-to-soft rough machining of automotive components such as gears, crown wheels, shafts and case-hardened components.

    Find Your Solution for Hard Part Turning

    Find Your Solution for Hard Part Turning

    Achieve high productivity and outstanding quality with our Hard Part Turning (HPT) solutions for all of your component design or surface finish requirements.

    What’s new?

    CB7125 and CB7135

    The new generation CBN grades CB7125 and CB7135 are designed to break new ground in medium to heavy interrupted hard part turning. The grades are optimized to handle high surface and dimensional tolerance demands in the most efficient manner.

    Benefits

    • Longer and more stable and consistent tool life
    • Efficient and secure machining with good surface finish
    • Consistent dimensional tolerances
    • Lower cost per part when aiming for a one-cut strategy at high speed
    • New PVD coating of CB7125 for improved wear resistance

    Learn More

    Find your grade

    Our hardened material insert grade assortment mainly consists of uncoated and PVD-coated CBN grades for various machining conditions. We also have complementary grades. Use the information below to find the right grade for your production.

    Application area
    Machining conditions:

    Good

    Average

    Difficult

    CB7105

    First-choice CBN grade for low feed and continuous cuts in stable conditions at highest speeds in case and induction hardened steel.

    View assortment

    CoroTurn® 107: First choice for external and internal machining of small and slender components.
    CoroTurn® TR: Extremely stable system that avoids micro-vibrations.
    T-Max® P: First choice for general turning from small components to heavy machining.
    See complete assortment

    CB7115

    First-choice CBN grade for high feed and/or depth of cut in continuous to light interrupted cuts at high speeds in case and induction hardened steels.

    View assortment

    CoroTurn® 107: First choice for external and internal machining of small and slender components.
    CoroTurn® TR: Most stable system for avoiding micro-vibrations.
    T-Max® P: First choice for general turning from small components to heavy machining.
    CoroTurn® 1-2: For highest productivity and close surface finish tolerances.
    See complete assortment

    CB7125

    First-choice CBN grade designed to deliver stable and predictable tool life while machining case and induction hardened steels with light to medium interrupted cuts (chamfered component edges).

    View assortment

    CoroTurn® 107: First choice for external and internal machining of small and slender components.
    CoroTurn® TR: Most stable system for avoiding micro-vibrations.
    T-Max® P: First choice for general turning from small components to heavy machining.
    See complete assortment

    CB7135

    First-choice CBN grade designed to deliver stable and predictable tool life while machining case and induction hardened steels with heavy interrupted cuts (unchamfered component edges).

    View assortment

    CoroTurn® 107: First choice for external and internal machining of small and slender components.
    CoroTurn® TR: Most stable system for avoiding micro-vibrations.
    T-Max® P: First choice for general turning from small components to heavy machining.
    See complete assortment

    Complementary grades

    CB7025

    Complementary CBN grade for medium to light interruptions and continuous cuts at medium speeds in case and induction hardened steels.
    View complete assortment

    CB7015

    Complementary CBN grade with low CBN content. Use in continuous cuts to light interrupted cuts at high speeds in case and induction hardened steels.
    View complete assortment

    CB7525

    Grade with high CBN content suitable for ISO K finishing at high speeds and as a complementary grade for heavy interrupted cuts at low to medium speeds in case and induction hardened steel.
    View complete assortment

    CC675

    Whisker-reinforced ceramic with excellent bulk toughness, recommended for hardened steel under unfavorable conditions.
    View complete assortment

    CC6050

    Mixed Al2O3-based ceramic with good thermal properties and wear resistance, primarily recommended for light to continuous finishing.
    View complete assortment

    GC4305

    CVD-coated carbide grade for medium to roughing applications with continuous cuts at low speeds in hardened materials.
    View complete assortment

    GC4315

    CVD-coated carbide grade for finishing to roughing in applications with continuous cuts to light intermittence in hardened materials.
    View complete assortment

    CB7925

    Solid CBN grade, originally designed for high-alloyed cast iron, but also works as a complement in hardened steels with greater depths of cut or higher feeds at low to medium speeds.
    View complete assortment

    Highlights

    Gain an edge in steel turning

    Gain an edge in steel turning

    Dealing with the intense competition in manufacturing today means finding solutions to lower cost per part – without ever compromising process security. Find out how to make your steel turning operations more efficient.

    Hard Part Turning with CB7105 and CB7115

    The new grades are based on the newest generation cubic boron nitride (CBN) material. This material enhances crater wear resistance and fracture resistance at high cutting speed in case-hardened and induction-hardened material.

    Hard part turning with CB7125 and CB7135

    New generation CBN grades optimized for medium- to heavy-interrupted cuts. These grades deliver longer and more stable tool life, good surface finish and consistent dimensional tolerances, even at higher cutting parameters.

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