Korloy WNMG080408-HS PC9030 (WNMG 432-HS) Stainless Steel Finishing Insert (10pcs)
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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.