Korloy SNMG120408-HS PC9030 Stainless Steel Turning Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SNMG120408-HS PC9030 is a premium Double-Sided Square Turning Insert designed for the precision demands of Stainless Steel (M-Group) and Exotic Alloys. Utilizing the specialized PC9030 PVD Grade, this insert excels in preventing built-up edge (BUE) and minimizing thermal cracking. The -HS (High-Sharpness) geometry features a unique wave-like chipbreaker that provides aggressive chip control while maintaining low cutting resistance, making it ideal for high-quality semi-finishing operations.
Engineered for Tough Materials: Stainless steel requires a sharp edge to prevent work hardening. The SNMG120408-HS combines a razor-sharp profile with a robust 0.8mm radius, giving you the durability needed for medium-duty cuts without sacrificing the mirror-like finish of a precision tool.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | SNMG120408-HS |
| Corner Radius | 0.8 mm (Edge Strength + Finish) |
| Coating | PC9030 (Fine PVD for Heat Resistance) |
| Edges | 8 Usable Cutting Edges |
Core Performance Benefits:
- PVD Micro-Thin Coating: The PC9030 grade is chemically inert to stainless steel, significantly reducing the "sticking" effect during machining.
- Reinforced Precision: The 0.8mm radius handles heavier feed rates than the 0.4mm version while maintaining excellent structural integrity.
- Advanced HS Chipbreaker: Excellent for breaking long, bird-nesting chips commonly found in 304 and 316L stainless steel.
- Exceptional ROI: Double-sided 8-edge design offers unparalleled economy for high-volume production.
Recommended Cutting Parameters (Stainless & Exotic):
| Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| 304 / 316 Stainless | 90 - 180 m/min | 0.12 - 0.28 mm/rev | 0.5 - 3.5 mm |
| Duplex Stainless | 45 - 95 m/min | 0.10 - 0.22 mm/rev | 0.5 - 3.0 mm |
| Titanium / Inconel | 25 - 55 m/min | 0.08 - 0.18 mm/rev | 0.3 - 2.5 mm |
Compatible Tool Holders:
Universal fit for all negative 12.7mm (1/2") IC holders:
- External Turning: MSSNR 2525M12 / 3232P12
- Internal Boring Bars: S32T-MSSNR12 / S40U-MSSNR12
Machinist Tip: PC9030 vs PC5300
Selecting the best PVD grade for high-performance turning:
Best for Finish & Speed. Specialized for Stainless Steel. It offers better resistance to the chemical wear and "sticking" typical of 316L and duplex steels. Choose this for the best surface quality.
Best for Toughness. Use PC5300 if you have heavy interruptions (like holes or hex bars) or if the material is a mix of steel and stainless. It is tougher but slightly more prone to BUE in clean stainless cuts.
Pro Advice: For SNMG120408-HS, maintain a constant speed ($V_c$). If the speed is too low, the PVD coating cannot effectively prevent the material from welding to the edge, leading to chipping.
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.