Korloy WNMG080404-HS PC9030 (WNMG 431-HS) Stainless Steel Finishing Insert (10pcs)
30-Day Free Returns
Free Worldwide Shipping
The Original Korloy WNMG080404-HS PC9030 (ANSI: WNMG 431-HS) is a premier 80° Trigon Turning Insert specifically engineered for High-Precision Finishing of Stainless Steel and Super Alloys. This insert features the HS Chipbreaker, renowned for its ultra-sharp cutting edge that significantly reduces cutting resistance and prevents work-hardening. Combined with the PC9030 PVD Grade, it delivers an exceptional surface finish and superior anti-bonding performance in gummy materials.
Superior Finish Quality: The HS geometry is designed to "slice" through stainless steel even at very shallow depths of cut. If you need to maintain tight tolerances and a mirror finish on 304 or 316 stainless parts, the WNMG080404-HS is your definitive solution.
Technical Specifications (ISO Metric vs. ANSI Inch):
| ISO Designation | WNMG 080404-HS |
| ANSI Designation | WNMG 431-HS |
| Corner Radius (r) | 0.4 mm / (1/64") |
| 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) |
|---|---|---|---|
| 304/316 Stainless Steel | 120 - 200 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.5 mm |
| Heat Resistant Alloys | 40 - 90 m/min | 0.05 - 0.12 mm/rev | 0.1 - 1.0 mm |
Compatible Tool Holders:
Ensure maximum stability by using high-quality Korloy-compatible tool holders:
- External Turning: MWLNR/L Series (Standard 80° Trigon)
- Internal Boring: S-MWLNR/L Series Boring Bars
Core Performance Benefits:
- Anti-Bonding PVD Coating: The specialized PC9030 coating reduces chemical affinity between the insert and the workpiece, preventing "Built-up Edge" (BUE).
- Sharp HS Geometry: Optimized for low cutting forces, which helps in preventing vibration and chatter on long-overhang boring bars or thin shafts.
- Extreme Dimensional Accuracy: The 0.4mm (R0.4) radius is ideal for high-precision finishing where fine tolerances are critical.
- 6 Edges for the Price of 4: Like all WNMG inserts, this offers 6 precision cutting edges, providing a massive 50% increase in productivity over CNMG inserts.
Search Keywords: WNMG080404-HS PC9030 price, Korloy WNMG 431-HS specs, stainless steel finishing inserts, best inserts for finishing 316 stainless, sharp edge carbide inserts for CNC, WNMG080404-HS cutting data, Korloy PVD inserts distributor.
Grade & Chipbreaker Comparison
HS vs. HM: Use the HS chipbreaker for precision finishing passes (ap < 1.0mm) to achieve the best surface quality. If you need a more versatile tool for general machining and semi-finishing, consider the HM chipbreaker for increased edge strength.
Packaging: 10 pieces per box.