Korloy MGMN300-02-L PC5300 3mm Precision Profiling & Grooving Insert (10pcs)
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The Original Korloy MGMN300-02-L PC5300 is a high-precision 3.0mm Double-Ended Profiling and Grooving Insert. Engineered with a 0.2mm corner radius (R0.2) and the specialized -L lead geometry, this insert is the professional’s choice for complex 3D profiling, radius grooving, and high-finish parting operations. The PC5300 PVD grade provides an elite combination of heat resistance and substrate toughness, ensuring stable performance across a vast range of materials.
Optimized for Intricate Profiles: Unlike standard flat-top inserts, the MGMN300-02-L is designed to handle lateral cutting forces. This makes it ideal for creating curved grooves and tapered shoulders in 3.0mm applications while maintaining strict dimensional accuracy.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-02-L |
| Insert Width / Radius | 3.0 mm / R0.2 |
| Grade | PC5300 (Universal High-Toughness PVD) |
| Main Application | Profiling, Finishing, Precise Grooving |
Core Performance Benefits:
- Precision Edge Geometry: The R0.2 radius reduces stress concentration and produces a high-quality surface finish on the workpiece.
- Exceptional Versatility: PC5300 grade is optimized for Steel (P), Stainless Steel (M), and Heat Resistant Alloys (S).
- Lateral Stability: Engineered to resist tool deflection during side-turning and profiling maneuvers.
- PVD TiAlN Coating: Offers superior protection against built-up edge and thermal cracking in high-friction environments.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel / Alloy Steel | 100 - 180 m/min | 0.05 - 0.15 mm/rev |
| Stainless Steel (304/316) | 80 - 130 m/min | 0.04 - 0.12 mm/rev |
| Cast Iron (Ductile) | 90 - 150 m/min | 0.06 - 0.18 mm/rev |
Compatible Tool Holders:
Universal 3.0mm seat size. Pairs perfectly with high-stability holders:
- External Holders: MGEHR 1616-3 / 2020-3 / 2525-3
-
Internal Holders:
The Profiling Edge: MGMN300-02-L vs. Standard MGMN300
Why choose a "Lead" (-L) geometry for your 3.0mm applications?
-L (Lead/Profiling) Model (This Model)The Precision Finisher. Optimized for sideways movement and profiling. The R0.2 radius and special edge prep prevent vibration and produce "mirror-like" results in finishing passes.
Standard MGMN-G/MThe Grooving Workhorse. Best for straight-down plunging and parting-off. Less effective for lateral profiling where side-loading is present.
Machinist's Pro Tip: For MGMN300-02-L PC5300, when profiling curved surfaces, use a constant surface speed (CSS) if your CNC allows it. Keeping the $Vc$ stable as the tool moves across different diameters is the best way to leverage the PC5300 grade's potential.
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.