Korloy Indexable Turning Insert WNMG080408-HM NC3020 | WNMG 432-HM (Imperial Equivalent) CVD Coated Carbide Inserts for High-Speed Steel and Alloy Turning - 10pcs Box
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Korloy Indexable Turning Insert WNMG080408-HM NC3020 | WNMG 432-HM (Imperial Equivalent) CVD Coated Carbide Inserts for High-Speed Steel & Alloy Machining - 10pcs Box
High-Performance ISO-Standard 80° Trigon Negative Indexable Turning Cutters for Industrial CNC Carbon Steels, Alloy Steels & High-Speed Machining Operations
1. Product Overview
"Which indexable turning insert is best suited for high-speed CNC steel turning and general alloy roughing requiring superior wear resistance, excellent thermal stability at elevated cutting speeds, and stable chip breaking across continuous cutting passes?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG080408-HM NC3020. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3020 specialized CVD-coated grade optimized for high-speed carbon and alloy steel machining, combined with an 80° trigon negative geometry providing 6 usable cutting edges for maximum economic efficiency, a precise 0.8mm corner radius for balanced roughing and finishing performance, and a specialized -HM chipbreaker engineered to provide universal cutting versatility, robust edge security, and excellent chip control across medium-to-heavy turning passes.
2. Product Key Features
- NC3020 Advanced CVD Coated Grade Technology: A tough, wear-resistant carbide substrate paired with a high-performance multi-layer CVD coating designed specifically to resist flank wear and thermal deformation during high-speed steel turning.
- Optimized -HM Chipbreaker Geometry: Universal medium-machining chipbreaker design providing balanced rake geometry to handle continuous and mildly interrupted cuts with minimal cutting forces.
- 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 | WNMG080408-HM | WNMG 432-HM |
| Inscribed Circle / Size | 8.70 mm (08 series scale equivalent) | 1/2" nominal scale equivalent (4 series) |
| Insert Thickness (04) | 4.76 mm (3/16" thickness class) | 0.1875 inch (3 series / 3/16" scale) |
| Corner Radius (08) | 0.8 mm | 0.0313 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 & Alloy Steels (P10 - P30) | 220 - 380 | 0.20 - 0.45 |
| High-Strength Steels & Tool Steels (P20 - P40) | 180 - 280 | 0.15 - 0.35 |
Need matching MWLNR/L or PWLNR/L external turning tool holders for your 0804 WNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy WNMG080408-HM NC3020 insert performs exceptionally across high-volume automotive component production, heavy machinery fabrication, industrial roll manufacturing, and structural steel processing sectors:
- High-Speed Automotive Shaft Turning: High-efficiency roughing and semi-finishing operations on carbon and alloy steel transmission components.
- Heavy Industrial Rollers: Continuous cylindrical turning and facing on large-diameter steel rollers.
- Structural Steel Components: High-feed exterior turning on forged and rolled structural steel elements.
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 0804 series inserts.
- CNC Machinery: Optimized for high-speed CNC lathes, multi-axis turning centers, and heavy-duty turning machinery processing steel workpieces.
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, alloy steels, and high-speed steel components | Excellent (Dedicated CVD Grade Optimized for High-Speed Steel Turning) |
| K (Cast Iron) | Gray cast iron, nodular iron | Moderate (Applicable for light finishing passes under stable conditions) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (Recommended to use dedicated PVD grades for stainless steel) |
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 grade during high-speed CNC steel turning operations?
A: The NC3020 grade utilizes a specialized multi-layer CVD coating engineered to deliver exceptional thermal resistance and high-speed wear protection, allowing for increased cutting velocities ($220\text{–}380\text{ m/min}$) without premature flank degradation.
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 across different feed rates?
A: The -HM chipbreaker provides robust edge strength and reliable chip control across medium-to-heavy feed rates ($0.20\text{ to }0.45\text{ mm/rev}$), ensuring stable continuous cutting performance.
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
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.