Korloy SNMG120408-HS PC5300 Universal Turning Insert for Stainless & Steel (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy SNMG120408-HS PC5300 is a high-performance Double-Sided Square Turning Insert designed for versatility and reliability. Featuring Korloy's most popular PC5300 PVD Grade, this insert is the industry's go-to "Universal Fighter," capable of handling Steel, Stainless, and Cast Iron in a single setup. The -HS (High-Sharpness) chipbreaker is engineered to reduce cutting resistance while ensuring excellent chip breakage during semi-finishing to medium machining passes.
The Problem Solver: Dealing with vibrations or unpredictable tool life? The PC5300 substrate is exceptionally tough, preventing premature chipping. The 0.8mm radius of the SNMG120408-HS provides the perfect balance of surface finish and edge strength for demanding job shop work.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | SNMG120408-HS |
| Corner Radius | 0.8 mm (Durability & Finish) |
| Substrate | PC5300 (Sub-micron PVD Coated) |
| Edges | 8 Usable Cutting Edges |
Core Performance Benefits:
- Unmatched Toughness: PC5300 is specifically formulated to resist the mechanical shocks of interrupted cutting and unstable setups.
- High-Sharpness HS Geometry: Slices through work-hardening materials like stainless steel and titanium without generating excessive heat.
- Enhanced Edge Life: The 0.8mm radius dissipates heat more effectively than finer tips, allowing for longer continuous cuts.
- Wide Application Range: One insert for multiple material groups—P (Steel), M (Stainless), K (Cast Iron), and S (Heat Resistant Alloys).
Recommended Cutting Parameters (Universal Applications):
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 120 - 240 m/min | 0.15 - 0.35 mm/rev | 0.8 - 4.0 mm |
| Stainless Steel (304/316) | 90 - 180 m/min | 0.12 - 0.30 mm/rev | 0.8 - 3.5 mm |
| Titanium / Inconel | 30 - 60 m/min | 0.10 - 0.22 mm/rev | 0.5 - 2.5 mm |
Compatible Tool Holders:
Precision designed for 12.7mm (1/2") IC negative tool holders:
- External Turning: MSSNR 2525M12 / 3232P12
- Internal Boring Bars: S32T-MSSNR12 / S40U-MSSNR12
Machinist Tip: PC5300 vs PC9030
How to select the best PVD grade for your stainless steel jobs:
The Tough All-Rounder. Best for general job shops. If you are cutting stainless steel one hour and alloy steel the next, or if your machine is prone to vibration, PC5300 is the safer, more robust choice.
High-Heat Production. Switch to PC9030 for dedicated, long-run stainless steel production where speed and thermal resistance are prioritized over pure edge toughness.
Pro Advice: When using the SNMG120408-HS, maintain a feed rate ($fn$) above 0.15mm/rev. This ensures the chip is pushed into the HS chipbreaker's pocket for perfect "6" shaped chips rather than long needles.
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.