Korloy Indexable Turning Insert WNMG060408-HM NC3020 | WNMG 322-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel and Alloy Turning - 10pcs Box
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Korloy Indexable Turning Insert WNMG060408-HM NC3020 | WNMG 322-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel & Alloy Turning - 10pcs Box
High-Performance ISO-Standard 80° Trigon Negative Indexable Turning Cutters for Industrial CNC Carbon Steels, Alloy Steels, and Heavy Roughing Operations
1. Product Overview
"Which indexable turning insert is best suited for heavy roughing and general turning operations on carbon steels and alloy steels while ensuring maximum tool life and stable chip control?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG060408-HM NC3020. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3020 specialized CVD-coated grade optimized for stable steel machining and component manufacturing, combined with an 80° trigon negative geometry providing 6 usable cutting edges for maximum economic efficiency, a durable 0.8mm corner radius for enhanced edge strength during rough cuts, and a specialized -HM chipbreaker engineered with a robust multi-purpose groove profile to deliver reliable chip breaking, excellent wear resistance, and high resistance to plastic deformation under demanding cutting conditions.
2. Product Key Features
- NC3020 Advanced CVD Coated Grade Technology: A tough carbide substrate combined with a high-performance multi-layer CVD coating engineered specifically to resist flank wear, crater wear, and thermal stress during continuous steel turning operations.
- Optimized -HM Chipbreaker Geometry: Heavy-to-medium roughing design featuring a robust cutting edge and wide groove profile designed to handle high feed rates and deep depths of cut without chipping.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure pin-and-clamp locking and exact interchangeability across standard negative external turning tool holders and boring bars.
- Industrial Package: Supplied in factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline workshop inventory management.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe and turning tool holder integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | WNMG060408-HM | WNMG 322-HM |
| Inscribed Circle / Size | 6.50 mm (06 series scale equivalent) | 3/8" nominal scale equivalent (3 series) |
| Insert Thickness (04) | 4.76 mm (3/16" thickness class) | 0.1875 inch (2 series / 1/4" scale equivalent height class) |
| Corner Radius (08) | 0.8 mm | 0.0312 inch (2 radius designation scale / 1/32") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Structural Steels (P10 - P30) | 200 - 350 | 0.20 - 0.45 |
| Alloy Steels & Low-Alloy Steels (P20 - P40) | 150 - 280 | 0.18 - 0.40 |
Need matching MWLNR/L or PWLNR/L external turning tool holders for your 0604 WNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy WNMG060408-HM NC3020 insert performs exceptionally across heavy machinery manufacturing, automotive drive components, oilfield equipment, and industrial shaft fabrication:
- Automotive Transmission Shafts: Heavy stock removal and rough turning passes on forged alloy steel shafts.
- Industrial Rollers & Cylinders: Continuous outer diameter roughing operations on large steel rollers.
- General Steel Machining Job Shops: High-efficiency mass production turning applications requiring reliable tool life and predictable wear.
5. Compatibility
Designed to integrate seamlessly into standard negative industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with MWLNR/L, PWLNR/L, and DWLNR/L negative lever-lock and pin-lock external tool holders configured for WNMG 0604 series inserts.
- CNC Machinery: Optimized for standard CNC lathes, heavy turning centers, and automated production cells.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance and prevent tool wear.
| ISO Material Category | Target Materials | NC3020 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, low-alloy steels, high-strength alloy steels | Excellent (Dedicated CVD Grade Optimized for High-Speed Steel Roughing & General Turning) |
| K (Cast Iron) | Gray cast iron, ductile iron | Moderate (Suitable for light turning of cast iron components) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (PVD grades like PC9030 recommended for dedicated stainless turning) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: What is the primary benefit of the NC3020 CVD coated grade for steel turning?
A: NC3020 features a thick, wear-resistant CVD multi-layer coating tailored for high-speed and stable roughing operations on carbon and alloy steels, providing superior crater wear resistance.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable turning inserts, individually secured to prevent transit edge damage.
Q: How does the -HM chipbreaker perform under deep cuts?
A: The -HM geometry is specifically engineered with a robust edge line and wide groove to handle aggressive feed rates and heavy depths of cut without chipping.
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.