Korloy WNMG080404-HM NC3120 (WNMG 431-HM) New Generation High-Speed Steel Insert (10pcs)
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The Original Korloy WNMG080404-HM NC3120 (ANSI: WNMG 431-HM) represents the next generation of 80° Trigon Steel Turning technology. Engineered to surpass the performance of the classic NC3020, the NC3120 grade features an enhanced Al2O3 coating structure that offers superior heat dissipation and crater wear resistance. Combined with the 0.4mm (1/64") radius, this insert is the ultimate tool for Precision Finishing in high-volume, automated steel production environments.
The Future of Steel Machining: NC3120 is designed for workshops that demand higher Vc (cutting speed) without compromising tool life. Its optimized surface treatment reduces friction, preventing "built-up edge" even when machining gummy low-carbon steels.
Technical Specifications (ISO Metric vs. ANSI Inch):
| ISO Designation | WNMG 080404-HM |
| ANSI Designation | WNMG 431-HM |
| New Grade | NC3120 (Advanced High-Speed CVD) |
| Corner Radius (r) | 0.4 mm / (1/64") |
| Coating Technology | Premium Multi-Layer Al2O3 + TiN |
Compatible Tool Holders (Hyperlinks):
Ensure maximum precision by using the standard industrial tool holder series:
- External Turning: MWLNR/L Series (80° Trigon Standard)
- Internal Boring: S-MWLNR/L Series Boring Bars
Core Performance Benefits:
- Extreme High-Speed Stability: The NC3120 coating allows for 20-30% higher cutting speeds than conventional grades, drastically reducing cycle times.
- Precision Finishing Edge: The R0.4 radius minimizes radial cutting pressure, preventing deflection and ensuring micron-level accuracy on slender parts.
- Next-Level Heat Shield: Advanced thermal barrier technology keeps the carbide core cool, preventing plastic deformation even in dry machining conditions.
- Economic 6-Edge Design: Still the champion of cost-efficiency, giving you 6 usable edges per insert to lower your tooling overhead.
Recommended Cutting Parameters:
| Material | Cutting Speed (Vc) | Feed Rate (fn) | Max Depth (ap) |
|---|---|---|---|
| Medium Carbon Steel | 250 - 450 m/min | 0.08 - 0.25 mm/rev | 2.0 mm |
| Pre-Hardened Alloy Steel | 200 - 350 m/min | 0.08 - 0.20 mm/rev | 1.5 mm |
Packaging: 10 pieces per box.
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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.