Korloy Indexable Turning Insert WNMG080408-GR NC6210 | WNMG 432-GR (Imperial Equivalent) CVD Coated Carbide Inserts for Cast Iron Roughing and Machining - 10pcs Box
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Korloy Indexable Turning Insert WNMG080408-GR NC6210 | WNMG 432-GR (Imperial Equivalent) CVD Coated Carbide Inserts for Cast Iron Roughing - 10pcs Box
High-Performance ISO-Standard 80° Trigon Negative Indexable Turning Cutters for Industrial CNC Gray Cast Iron, Ductile Iron & Heavy Roughing Operations
1. Product Overview
"Which indexable turning insert is best suited for heavy-duty CNC cast iron roughing, interrupted turning passes, and high-feed machining requiring maximum edge toughness and wear resistance?" CNC programmers and machine shop supervisors frequently select the Korloy WNMG080408-GR NC6210. This industrial-grade indexable carbide turning insert features an advanced high-performance NC6210 specialized CVD-coated grade optimized for cast iron and robust materials, combined with an 80° trigon negative geometry providing 6 usable cutting edges for maximum economic efficiency, a precise 0.8mm corner radius for structural stability, and a specialized -GR chipbreaker engineered with a wide, robust groove profile to deliver exceptional edge strength, heavy depth-of-cut capacity, and reliable chip breaking under demanding roughing conditions.
2. Product Key Features
- NC6210 Advanced CVD Coated Grade Technology: A tough, shock-resistant carbide substrate combined with a heavy-duty multi-layer CVD coating engineered specifically to resist abrasive wear and thermal cracking during cast iron roughing.
- Optimized -GR Chipbreaker Geometry: Rugged roughing chipbreaker design featuring reinforced cutting edge strength to withstand high cutting forces and intermittent shock loads.
- 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-GR | WNMG 432-GR |
| 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 |
|---|---|---|
| Gray Cast Iron (K10 - K30) | 150 - 280 | 0.25 - 0.55 |
| Ductile / Nodular Cast Iron (K15 - K35) | 120 - 220 | 0.20 - 0.45 |
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-GR NC6210 insert performs exceptionally across automotive engine block machining, heavy machinery gear blank roughing, wind turbine casting production, and pump housing manufacturing sectors:
- Automotive Engine Blocks: Heavy roughing and outer diameter turning on gray cast iron engine crankcases.
- Heavy Machinery Gear Blanks: High-feed roughing passes on ductile iron industrial gear castings.
- Pump & Valve Castings: Interrupted turning and skin removal on high-strength nodular iron housings.
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 heavy-duty CNC lathes, vertical turning lathes (VTL), and high-power turning centers.
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 | NC6210 Performance Suitability |
|---|---|---|
| K (Cast Iron) | Gray cast iron, ductile/nodular iron | Excellent (Dedicated CVD Grade Optimized for Cast Iron Roughing & Heavy Machining) |
| P (Steel) | Carbon steels, alloy steels | Limited (Recommended to use dedicated steel grades for steel turning operations) |
| S (Superalloys) | Nickel-based alloys, titanium | Not Recommended (Use specialized PVD grades for heat-resistant superalloys) |
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 NC6210 particularly effective for cast iron roughing applications?
A: The NC6210 grade combines a high-strength carbide substrate with a specialized thick CVD coating designed to withstand abrasive cast iron skin, high thermal loads, and heavy interrupted cutting shocks.
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: Can the -GR roughing chipbreaker be used for light finishing passes?
A: While -GR is engineered for heavy and medium roughing with high feed rates, light finishing is better served by a dedicated finishing geometry such as the -HA or -FN.
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.