Korloy MGMN300-02-L PC9030 3mm R0.2 Stainless Steel Profiling Insert (10pcs)
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The Original Korloy MGMN300-02-L PC9030 is a premium 3.0mm Double-Ended Profiling Insert specifically engineered for Stainless Steel (M) and Heat-Resistant Alloys (S). Featuring a sharp 0.2mm corner radius (R0.2) and the -L optimized profiling geometry, this insert excels in achieving "mirror-like" surface finishes on gummy materials. The PC9030 PVD grade is world-renowned for its ability to combat heat buildup and prevent chip welding, making it the industry standard for precision stainless machining.
The Stainless Steel Specialist: While universal grades often struggle with the work-hardening of stainless steel, the PC9030's sub-micron substrate and high-aluminum PVD coating are designed to stay sharp and cool. The -L geometry ensures that side-turning and profiling passes remain vibration-free.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-02-L |
| Insert Width / Radius | 3.0 mm / R0.2 |
| Grade | PC9030 (Premium Stainless PVD) |
| Chipbreaker | -L (Profiling / Lead Finishing) |
Core Performance Benefits:
- Anti-Adhesion Coating: Specialized PVD surface prevents material from welding to the edge, crucial for 304/316 stainless.
- Precision R0.2 Edge: Allows for intricate detail work and sharp corner definition in 3.0mm grooves.
- Superior Thermal Resistance: Maintains hardness at high temperatures, enabling stable performance in tough-to-cut alloys.
- Optimized Lead Geometry: The -L design creates a clean shearing action, reducing cutting forces and chatter during lateral profiling.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.03 - 0.10 mm/rev |
| Duplex Stainless Steel | 50 - 90 m/min | 0.03 - 0.08 mm/rev |
| Titanium Alloys (Inconel) | 30 - 60 m/min | 0.02 - 0.07 mm/rev |
Compatible Tool Holders:
Precision 3.0mm seat fit for external and internal systems:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3
- Internal Holders: MGIVR 2016-3 / 2520-3
Grade Choice: PC9030 vs. PC5300
Both are PVD grades, but their specializations differ significantly for 3.0mm profiling:
The Stainless Expert. Optimized specifically for M (Stainless) and S (Super Alloys). It features a smoother coating to prevent built-up edge and a tougher substrate to resist thermal cracking during wet cutting.
The Universalist. Best for general steel (P) and mixed material production. While it can cut stainless, it won't match the tool life of PC9030 in dedicated stainless runs.
Machinist's Pro Tip: For MGMN300-02-L PC9030, high-pressure coolant is your best friend. Aim the nozzle directly at the cutting edge to flush out chips during profiling; this prevents the "re-cutting" of chips that often damages the R0.2 radius.
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.