Korloy Indexable Turning Insert WNMG060404-HM NC3020 | WNMG 321-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel and Alloy General Turning - 10pcs Box
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
✓ Global Shipping: Express 3–10 Days | Standard 5–15 Days
✓ Guaranteed Quality: 100% Compatibility | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
Korloy Indexable Turning Insert WNMG060404-HM NC3020 | WNMG 321-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 Carbon Steels, Alloy Steels, and General Machining Operations
1. Product Overview
"Which indexable turning insert is best suited for general turning and semi-roughing operations on carbon steels and alloy steels while providing balanced edge strength and dependable chip control?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG060404-HM NC3020. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3020 specialized CVD-coated grade optimized for stable steel component manufacturing, combined with an 80° trigon negative geometry providing 6 usable cutting edges for maximum economic efficiency, a precise 0.4mm corner radius for fine contouring and general turning, and a specialized -HM chipbreaker engineered with a robust multi-purpose groove profile to deliver reliable chip breaking, balanced wear resistance, and strong resistance to thermal and mechanical shock under routine 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 fatigue during continuous steel turning operations.
- Optimized -HM Chipbreaker Geometry: General-to-medium roughing design featuring a robust cutting edge and wide groove profile designed to handle moderate feed rates and balanced 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 | WNMG060404-HM | WNMG 321-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 (04) | 0.4 mm | 0.0156 inch (1 radius designation scale / 1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Carbon Steels & Structural Steels (P10 - P30) | 220 - 360 | 0.15 - 0.35 |
| Alloy Steels & Low-Alloy Steels (P20 - P40) | 160 - 300 | 0.12 - 0.30 |
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 WNMG060404-HM NC3020 insert performs exceptionally across general machinery manufacturing, automotive components, fastener production, and industrial shaft fabrication:
- Automotive Drive Components: General turning and contouring passes on medium-carbon steel shafts and gears.
- Industrial Machine Spindles: Multi-pass general machining on carbon and alloy steel structural elements.
- General Job Shop Production: Versatile turning applications requiring reliable tool life and consistent chip breaking across varied steel parts.
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, turning centers, and automated manufacturing lines.
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, structural steels | Excellent (Dedicated CVD Grade Optimized for Steel General Turning & Semi-Roughing) |
| 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 ideal application for the WNMG060404-HM insert compared to the 08 radius version?
A: The 0.4mm corner radius (-04) is engineered for finer surface finishes, smaller corner depths, and lighter general turning passes compared to the 0.8mm roughing radius.
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 NC3020 grade handle continuous steel turning?
A: NC3020 features a robust multi-layer CVD coating specifically designed to withstand thermal and abrasive wear during continuous steel cutting operations.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.