Korloy SNMG120404-HS PC9030 Precision Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SNMG120404-HS PC9030 is a high-precision Double-Sided Square Turning Insert specifically optimized for finishing Stainless Steel (M-Group) and High-Temperature Alloys. Utilizing the advanced PC9030 PVD Grade, this insert prevents built-up edge (BUE) and offers exceptional surface finish quality. The -HS (High-Sharpness) chipbreaker is engineered to minimize cutting forces, making it the perfect solution for long-reach boring or machining thin-walled stainless steel components.
Ultimate Precision for Gummy Materials: The HS geometry features an exceptionally sharp cutting edge that slices through 300-series stainless steel rather than pushing it. This results in significantly lower heat generation and a mirror-like surface finish.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | SNMG120404-HS |
| Corner Radius | 0.4 mm (Ultra Precision) |
| Substrate | PC9030 (Premium PVD for Stainless) |
| Quantity | 10 Inserts / Box |
Core Performance Benefits:
- Optimized PVD Coating: The PC9030 grade features a micro-thin, smooth coating that resists the chemical affinity of stainless steel, preventing "welding" at the tip.
- Reduced Vibration: The sharp -HS geometry lowers radial cutting forces, ideal for small lathes or parts with low rigidity.
- Superior Surface Finish: 0.4mm radius allows for fine finishing passes with tight dimensional tolerances.
- 8 Usable Corners: Maximize your productivity and ROI with eight high-precision edges per insert.
Recommended Cutting Parameters (Precision Stainless):
| Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| 304 / 316L Stainless | 100 - 200 m/min | 0.05 - 0.20 mm/rev | 0.2 - 2.0 mm |
| Duplex Stainless | 50 - 110 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.5 mm |
| Titanium Alloys | 35 - 75 m/min | 0.05 - 0.12 mm/rev | 0.1 - 1.2 mm |
Compatible Tool Holders:
Fits all ISO negative holders (12.7mm IC):
- External Precision: MSSNR 2020K12 / 2525M12
- Internal Boring Bars: S20S-MSSNR12 / S25S-MSSNR12
Machinist Tip: PC9030 vs PC5300 in Stainless
Fine-tuning your tool selection for stainless steel:
Clean Finishes. Best for stable machines and high-volume stainless production. It resists built-up edge better and provides a smoother surface finish than PC5300.
Interrupted Cuts. Switch to PC5300 if you are hitting keyways or cross-holes in stainless. PC5300 is tougher and less likely to chip during sudden impacts.
Pro Advice: For SNMG120404-HS, the depth of cut ($a_p$) should ideally be greater than the corner radius (0.4mm) to avoid "plowing" and ensure the chipbreaker engages correctly.
Packaging: 10 pieces per box.
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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.