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Korloy LNMX060310R-MM PC3700
High-feed, high-speed steel milling insert — Korloy LNMX060310R-MM with PC3700 grade delivers long tool life, superb wear resistance and reliable chip control for steel machining.
Boost your steel milling performance with the Korloy LNMX060310R-MM PC3700, a high-performance indexable insert engineered to deliver maximum productivity, long tool life, and exceptional stability even under demanding cutting conditions. Built with Korloy’s advanced PC3700 steel-milling grade, this insert is designed for machinists who need reliable performance at high speeds, high feeds, and heavy loads.
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Cut faster, last longer — slash your cost per component with the Korloy LNMX060310R-MM (PC3700) insert.
Key Features & Specs
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Geometry & Design: LNMX060310R-MM — part of the LNMX series, designed for 90° milling with a strong negative geometry, optimized for high depth-of-cut and high feed.
Grade & Coating: Uses Korloy’s PC3700 — a high-toughness carbide substrate combined with a high-hardness, lubricative PVD coating. This smooth-coated surface reduces friction, improves chip evacuation, and resists built-up edge even at high speeds. -
Cutting Applications: Ideal for milling steel — mild steel, carbon steel, alloy and pre-hardened steels. While milling is primary, the toughness and coating make it suitable for demanding steel turning or heavy-cut applications as needed
Why It’s a Best Seller
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Extended Tool Life & Stability: PC3700 significantly improves resistance to chipping, breakage and wear compared to older Korloy grades. That means fewer unexpected insert failures, less downtime, and more consistent performance across a variety of steel grades.
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Higher Productivity: The tough substrate + low-friction coating allow high feed, high speed and deep-cut milling — boosting throughput while ensuring stable tool life.
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Better Surface Finish & Chip Control: Smooth coated surface and optimized chipbreaker geometry give reliable chip evacuation and minimize built-up edges — yielding cleaner parts and reducing rework.
🏭 Application Industries
Perfect for machining in:
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Automotive (shafts, housings, engine components)
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Aerospace (structural steel parts, fixtures)
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Die & Mold (steel molds, dies, tooling)
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General engineering & heavy fabrication (machine parts, shafts, flanges)
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Frequently Asked Questions
A1: PC3700 is a newer generation grade optimized for steel milling — its tougher substrate + lubricative PVD coating deliver significantly better resistance to chipping, breakage, flank and crater wear, compared to PC3500/PC3600. This translates into longer tool life, more stable performance under high feed/high depth cutting, and fewer insert failures
Though it’s primarily designed for milling — especially high-feed 90° milling — the robustness of PC3700 (tough substrate + PVD coating) can make it suitable in some steel turning or heavy cutting operations where a stable, wear-resistant insert is needed.
It’s optimized for steel: mild steel, carbon steel, alloy steel, pre-hardened steel. It handles both continuous and interrupted cuts, making it versatile for a wide range of steel machining jobs.
Because of high feed & speed capability, excellent chip evacuation, and stable tool life, you can run longer cycles with fewer index changes — cutting machining time, reducing downtime, and lowering cost per component.
Simple — send us a DM, WhatsApp or call us directly. We’ll check current stock or lead time, provide best price (especially for bulk orders), and help you place the order right away.
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