Korloy WNMG080408-HS PC9030 (WNMG 432-HS) Stainless Steel Finishing Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy WNMG080408-HS PC9030 (ANSI: WNMG 432-HS) is a high-performance 80° Trigon Turning Insert specifically designed for Finishing and Semi-Finishing of Stainless Steel and Heat-Resistant Alloys. Combining the ultra-sharp HS Chipbreaker with a robust 0.8mm (1/32") corner radius, this insert excels in achieving superior surface finishes while maintaining enhanced edge durability. The PC9030 PVD Grade is the industry standard for combating the sticky nature of 300-series stainless steels.
Precision with Strength: The HS geometry provides ultra-low cutting resistance, preventing vibration on thin-walled parts. By utilizing the 0.8mm radius, this insert offers significantly better tool life than the 0.4mm version when machining at higher feed rates.
Technical Specifications (ISO Metric vs. ANSI Inch):
| ISO Designation | WNMG 080408-HS |
| ANSI Designation | WNMG 432-HS |
| Corner Radius (r) | 0.8 mm / (1/32") |
| Grade | PC9030 (Premium PVD) |
| Chipbreaker | HS (Finishing / Sharp Edge) |
Recommended Cutting Parameters:
Achieve the best productivity with these recommended speeds and feeds for Stainless Steel:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 110 - 190 m/min | 0.08 - 0.20 mm/rev | 0.2 - 2.0 mm |
| Duplex Stainless Steel | 80 - 140 m/min | 0.08 - 0.18 mm/rev | 0.2 - 1.5 mm |
Compatible Tool Holders (Internal Links):
Ensure maximum stability by using industrial-grade tool holders:
- External Turning: MWLNR/L Series (Standard 80° Trigon)
- Internal Boring: S-MWLNR/L Series (Internal Boring)
Core Performance Benefits:
- Superior Anti-Bonding: The PC9030 PVD coating prevents material welding (Built-up Edge), which is common in stainless machining, ensuring consistent results.
- Ultra-Sharp Cutting Edge: HS geometry slices through the workpiece, reducing heat generation and surface work-hardening.
- Enhanced Edge Strength: The R0.8 radius is more robust than R0.4, allowing for stable performance in slightly interrupted cuts or when dealing with fluctuating depths of cut.
- Massive 6-Edge Economy: WNMG geometry provides 50% more edges than CNMG, offering the lowest cost-per-edge in the industry.
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Pro-Tip: Choosing the Right Radius
Use WNMG080404-HS (R0.4) for very light finishing and the highest dimensional precision. Choose this WNMG080408-HS (R0.8) if you need a tougher edge for semi-finishing or to increase the feed rate while maintaining a high-quality surface finish.
Packaging: 10 pieces per box.
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.