Korloy MGMN300-04-L PC5300 3mm R0.4 Precision Profiling Grooving Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MGMN300-04-L PC5300 is an elite 3.0mm Double-Ended Profiling Insert specifically designed for high-precision contouring and finishing. Featuring a robust 0.4mm corner radius (R0.4) and the -L optimized lead geometry, this insert excels where standard grooving tools fail—maintaining stability during lateral movements and complex curvature paths. Powered by the PC5300 PVD grade, it is a universal powerhouse for machining stainless steel, carbon steel, and high-temp alloys.
Why R0.4 Radius? The larger 0.4mm corner radius provides a significantly stronger cutting edge compared to R0.2. This allows for higher feed rates and improved heat dissipation during profiling passes, ensuring your 3.0mm grooves meet strict surface finish requirements even in tough materials.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-04-L |
| Insert Width / Radius | 3.0 mm / R0.4 |
| Grade | PC5300 (Universal High-Toughness PVD) |
| Operation | Heavy Profiling, Side-Turning, Radius Grooving |
Core Performance Benefits:
- Reinforced Edge Strength: The R0.4 radius minimizes edge chipping during high-pressure profiling cycles.
- Lateral Machining Excellence: Optimized -L geometry allows for smooth "side-turning" with minimal tool deflection.
- Universal Versatility: PC5300 grade delivers elite performance across P (Steel), M (Stainless), and K (Cast Iron).
- Exceptional Heat Resistance: Advanced PVD coating technology enables stable cutting even at elevated surface speeds.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon/Alloy Steel | 110 - 190 m/min | 0.08 - 0.18 mm/rev |
| Stainless Steel (300 Series) | 80 - 140 m/min | 0.06 - 0.14 mm/rev |
| Tool Steel / Hardened Steel | 50 - 90 m/min | 0.05 - 0.12 mm/rev |
Compatible Tool Holders:
Precision fit for standard 3.0mm seat MGEHR/L and MGIVR/L systems:
- External Holders: MGEHR 2020-3 / 2525-3
- Internal Holders: MGIVR 2520-3 / 3125-3
Profiling Selection: R0.4 vs. R0.2
In 3.0mm profiling, choosing the correct radius is essential for tool life and part geometry:
The Rugged Finisher. Offers higher edge strength. Ideal for larger parts, heavier feeds, and materials that tend to cause notch wear on sharper radii.
The Delicate Detailer. Best for very small corner radii requirements and ultra-low cutting forces in thin-walled components.
Machinist's Pro Tip: For MGMN300-04-L PC5300, the R0.4 radius allows you to use the tool for light "side-turning" (longitudinal turning) after cutting the groove. This reduces tool changes and optimizes your cycle time for complex shafts.
Packaging: 10 pieces per box.
Korloy MGMN300-04-L price, 3mm profiling insert with R0.4 corner radius, MGMN300-04-L vs MGMN300-02-L, best 3.0mm insert for radius grooving, PC5300 3mm lead geometry insert
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.