Korloy CNMG120404-HA PC9030 Sharp Stainless Steel Finishing Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy CNMG120404-HA PC9030 (ANSI Standard: CNMG 431) is a high-performance PVD-coated insert specifically engineered for precision finishing of Stainless Steel and Heat-Resistant Super Alloys (HRSA). Featuring the ultra-sharp HA chipbreaker, this insert provides a superior shearing action that minimizes cutting resistance and heat generation—the two primary causes of work hardening in materials like 316L and Titanium. The PC9030 grade ensures maximum resistance to adhesive wear and built-up edge (BUE).
The Finishing Specialist: HA geometry is much sharper than GS or HS series, making it the ideal choice for thin-walled parts, long slender shafts, and medical-grade stainless steel components where surface integrity is paramount.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CNMG120404-HA |
| ANSI Code | CNMG 431 |
| Grade | PC9030 (Premium PVD for Stainless & HRSA) |
| Chipbreaker | HA (Ultra-Sharp Precision) |
Core Performance Benefits:
- Extreme Sharpness: Razor-sharp edge shears through gummy materials to provide a burr-free, mirror-like surface finish.
- Minimized Cutting Force: Reduces pressure on the workpiece, preventing vibration and chatter in unstable or delicate setups.
- Superior Coating Stability: The PC9030 PVD coating offers high chemical stability, essential for machining nickel-based alloys and 300-series stainless.
- Precision Tolerance: The R0.4 nose radius ensures exceptional dimensional control for intricate finishing operations.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless (304/316) | 100 - 180 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.5 mm |
| Titanium Alloys | 40 - 90 m/min | 0.05 - 0.12 mm/rev | 0.1 - 1.0 mm |
| Inconel / HRSA | 25 - 50 m/min | 0.05 - 0.10 mm/rev | 0.1 - 0.8 mm |
Compatible Tool Holders:
For precision finishing, we recommend high-stability D-Type or M-Type holders:
- External Turning: PCLNR/L 2020K12 / PCLNR/L 2525M12
- Internal Boring Bars: S25S-PCLNR12 / S32T-PCLNR12
Finishing Pro-Tip: HA vs. HS Geometry
Choosing the right sharpness for your stainless steel job:
Best for heat-sensitive materials and super alloys. The sharpest possible edge to prevent work hardening.
Best for standard stainless steel finishing where you need a bit more edge strength for stable production.
Machinist's Insight: If you are machining 316 Stainless and the tool is "pushing" the material rather than cutting it, switch to the HA geometry to restore precision and surface quality.
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.