Korloy Indexable Turning Insert WNMG080404-HM NC3120 | WNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel and General Turning - 10pcs Box
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Korloy Indexable Turning Insert WNMG080404-HM NC3120 | WNMG 431-HM (Imperial Equivalent) CVD Coated Carbide Inserts for Steel General Turning - 10pcs Box
High-Performance ISO-Standard 80° Trigon Negative Indexable Turning Cutters for Industrial CNC Carbon Steels & Alloy Steels
1. Product Overview
"Which indexable turning insert is best suited for general CNC steel machining, high wear resistance, and stable medium-duty cutting passes on carbon and alloy steels?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG080404-HM NC3120. This industrial-grade indexable carbide turning insert features an advanced high-performance NC3120 specialized CVD-coated grade optimized for general steel turning and 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 general contouring, and a specialized -HM chipbreaker engineered with a robust medium-duty groove profile to deliver balanced cutting forces, exceptional flank wear resistance, and reliable chip control under demanding workshop conditions.
2. Product Key Features
- NC3120 Advanced CVD Coated Grade Technology: A tough carbide substrate combined with an optimized CVD multi-layer coating engineered specifically to resist thermal deformation, flank wear, and crater wear during general steel turning operations.
- Optimized -HM Chipbreaker Geometry: Precision medium-duty chipbreaker design featuring a strong cutting edge profile to balance sharp cutting performance with high fracture resistance across varied feed rates.
- 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 | WNMG080404-HM | WNMG 431-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 (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 & Alloy Steels (P15 - P35) | 180 - 320 | 0.15 - 0.38 |
| Low Alloy Steels & Structural Steels (P10 - P25) | 200 - 350 | 0.18 - 0.40 |
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 WNMG080404-HM NC3120 insert performs exceptionally across automotive manufacturing, general mechanical shafts, industrial machinery production, and structural steel fabrication sectors:
- Automotive Drive Shafts: General turning and medium-duty roughing-to-finishing passes on alloy steel shafts.
- Industrial Roller Components: Stable outer diameter turning on carbon steel cylindrical rollers.
- General Mechanical Engineering: Versatile cylindrical turning across standard structural and machine 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-precision CNC lathes, universal turning centers, and heavy-duty manufacturing 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 | NC3120 Performance Suitability |
|---|---|---|
| P (Steel) | Carbon steels, alloy steels, structural steels | Excellent (Dedicated CVD Grade Optimized for General Steel Turning & Long Tool Life) |
| M (Stainless Steel) | Austenitic stainless steels | Limited (Recommended to use dedicated PVD grades like PC9030 for stainless steel) |
| K (Cast Iron) | Gray cast iron, ductile iron | Moderate (Suitable for light continuous turning of cast iron parts) |
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 makes grade NC3120 ideal for general steel turning?
A: The NC3120 grade integrates a tough carbide substrate with a specialized CVD coating that offers outstanding wear resistance and thermal stability across diverse carbon and alloy steel applications.
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 during medium machining?
A: The -HM geometry is specifically designed as a reliable medium-duty breaker that provides steady chip flow and strong edge security under regular feed rates.
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.