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Korloy VNMG12T304 X100 CN2500
The Korloy VNMG12T304-X100 CN2500 is a high-performance cermet turning insert featuring a robust CN2500 (P25) grade. Engineered for heavy-duty turning on forged, sintered, and alloy steels, it offers enhanced wear and chipping resistance, superior surface finish, and consistent edge stability—even under the most demanding machining conditions. DM or WhatsApp CNC Tools Depot to check availability.
Tackle tough cuts, finish flawless — with the Korloy VNMG12T304-X100 CN2500, you get unmatched durability and premium surface finishes on challenging steel materials.
The Korloy VNMG12T304-X100 CN2500 is a premium turning insert designed for machinists who need maximum tool life, stability, and surface finish when cutting steels and alloys under tough conditions.
With its 80° diamond VNMG geometry and positive rake X100 design, this insert ensures smooth chip evacuation, stable edge engagement, and reduced cutting forces—ideal for medium to finishing operations, even in interrupted or high-vibration cuts.
The CN2500 grade is Korloy’s advanced P25 cermet grade, specially engineered to deliver:
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Outstanding chipping resistance, reducing edge fracture in unstable conditions
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High thermal and crater wear resistance, enabling consistent results in medium to high-speed machining
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Superior surface quality, with up to 1.4× better finish compared to conventional grades
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Longer insert life, lowering cost per component and minimizing downtime
Unlike general carbide inserts, CN2500 combines the toughness of a fine-grain substrate with the finishing quality of cermet—making it the perfect choice for steel turning in demanding environments.
Key Features
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Geometry: VNMG insert (80° rhombic), X100 variant indicating positive geometry—optimized for stable turning and reliable edge engagement (standard VNMG designation).
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Grade: CN2500 (P25 cermet) — advanced cermet grade specially sintered for superior resistance to chipping and thermal cracking in demanding steel applications.
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Substrate & Cutting Edge: Uniform micro-grain structure ensures high edge stability and reduced crater wear, even under interrupted cuts or heavy feeds.
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Surface Finish Performance: Designed edge geometry significantly reduces roughness, delivering up to 1.4× better surface finish in tests.
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Ideal Applications: Heavy-duty turning of forged steels, sintered ferrous alloys, carbon and alloy steels—especially where vibration, interrupted cuts, high feed, or high-speed requirements challenge standard inserts.
Why It's a Best Seller
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Maximized Tool Life: Exceptional wear and chipping resistance from the P25 cermet matrix ensures extended runs and fewer tool changes.
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Consistent Finish Quality: Optimized cutting edge delivers smooth finishes, saving on polish and rework time.
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Built for Tough Conditions: Handles interruptions, high feed rates, and unstable setups with ease—minimizing scrap and setup risks.
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Versatile Across Steels: A dependable workhorse across a wide range of ferrous materials—ideal for mixed setups.
Applications
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Automotive – forged shafts, gears, and structural components
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Aerospace – sintered, high-strength steel parts requiring precision finishing
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Die & Mold – tough sintered or forged tool components
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General Engineering – demanding batch production of alloy-steel parts with interrupted cutting
Benefits
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High-chipping resistance with micro-grain P25 cermet
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Improved surface finish even under heavy or interrupted cuts
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Long-lasting performance in forged/sintered steels
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Proven build for vibration-heavy, high-feed turning
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Frequently Asked Questions
It's a P25 cermet grade with a uniform micro-grain substrate, developed to tackle chipping, thermal cracking, and crater wear in high-demand steel turning.
It offers up to 1.4× better surface finish and significantly improved edge stability in heavy or interrupted machining.
It performs best on carbon steels, alloy steels, cold/hot forged steel, and sintered ferrous alloys—especially where interrupted or high-feeding operations are involved.
The VNMG diamond shape with positive geometry maintains optimal edge contact even under load and stable chip control.
It’s the epitome of productivity: longer tool life, consistent finishing, superb handling of tough cuts, and versatility across challenging alloys.
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