KORLOY MGGN300-02-M CN20 Indexable Grooving & Parting Inserts | Carbide CNC Cut-Off Inserts for Turning Tools (10pcs/box) / MGGN300-02-M CN20 Metric & Imperial Grooving Tooling
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KORLOY MGGN300-02-M CN20 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance Carbide Cut-Off Inserts for CNC Lathes and Turning Centers
1. Product Overview: Which grooving insert is best for high-stability parting-off, deep groove machining, and superior chip control on CNC lathes?
Which indexable grooving and parting insert featuring specialized geometry, high edge strength, and advanced metallurgical coatings offers superior chip evacuation, low cutting resistance, and exceptional wear resistance when executing parting-off, external grooving, and face grooving operations on CNC lathes? Backed by certified metalworking research and industrial tooling parameters, the KORLOY MGGN300-02-M CN20 (equivalent metric and imperial turning configurations) is engineered specifically for stable, high-efficiency material removal across demanding industrial applications. It utilizes the advanced CN20 grade—a specialized carbide substrate optimized for high toughness, thermal stability, and superior resistance to flank wear and chipping when machining carbon steels, alloy steels, and stainless steels. Combined with its unique -M chipbreaker geometry, it guarantees controlled chip formation, smooth evacuation, and extended tool durability during continuous and interrupted cuts.
2. Product Core Advantages (Key Features)
- CN20 Advanced Grade: Features a high-toughness carbide substrate combined with a wear-resistant PVD coating engineered to withstand extreme thermal stress and impact wear during grooving and parting.
- -M Chipbreaker Geometry: Designed with a specialized positive rake profile that curls chips tightly, preventing bird-nesting and surface scratching in carbon and alloy steels.
- High Rigidity & Parting Stability: Engineered to handle high feed rates and side forces during deep grooving and cut-off tasks, minimizing tool deflection.
- Secure Clamping Interface: Precision-ground dimensions ensure tight locating repeatability and secure retention inside indexable grooving tool holders and blocks.
3. Technical Specifications & Cutting Parameters
Review the metric and imperial specifications alongside recommended cutting parameters (feed rate and cutting speed) for optimal CNC lathe programming.
| Specification Parameter | Metric (ISO) | Imperial Equivalent |
|---|---|---|
| Insert Series / Type | MGGN Grooving Insert | MGGN Indexable Cut-Off Insert |
| Insert Width (W) | 3.0 mm (300 series) | 0.118 in (Inch Compatible) |
| Corner Radius / Style | -02 (0.2 mm Corner Radius) | 0.008 in Corner Radius |
| Chipbreaker / Grade | -M Geometry / CN20 Grade | Medium Chipbreaker / CN20 |
| Recommended Feed Rate (fn) | 0.05 - 0.15 mm/rev | 0.0020 - 0.0059 in/rev |
| Cutting Speed (Vc) - Steel & Alloy | 100 - 220 m/min | 328 - 722 SFM |
Model Nomenclature Breakdown: MGGN300-02-M CN20
Grooving series
Width (3.0mm)
Radius (0.2mm)
Chipbreaker
Carbide Grade
Looking for compatible external grooving tool holders, parting blades, or modular lathe adapter blocks designed for MGGN inserts?
Explore Compatible Grooving Tool Holders4. Product Application Scenarios
Optimized for CNC lathe turning operations involving external grooving, parting-off (cut-off), face grooving, and necking across carbon steels (C45, 1045), alloy steels (4140, 4340), stainless steels, and cast iron components.
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard external grooving tool holders and parting blades engineered with matching 3.0mm MGGN pocket specifications.
- Machine Platforms: Designed for CNC turning centers, Swiss-type lathes, and conventional engine lathes equipped with quick-change tooling posts.
- Coolant Systems: Fully compatible with high-pressure coolant and flood coolant systems to optimize chip evacuation and thermal control in deep grooves.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade CN20 performs across different ISO material classifications ensures maximum productivity and predictable tool life.
| ISO Material Group | Workpiece Description | KORLOY CN20 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel & Alloy Steel (C45, 4140, P20) | Advanced PVD coating provides exceptional wear resistance and edge toughness during continuous parting. | Sandvik GC1125 / Iscar IC908 |
| M Group (Stainless) | Austenitic & Martensitic Stainless Steel (304, 316) | Resists built-up edge and thermal deformation under heavy friction during grooving passes. | Kennametal KCU25 / Seco CP500 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, ensuring original metallurgical composition and consistent batch performance.
Expert Technical Support
Backed by extensive industrial turning databases, our technical team helps you optimize cutting speeds and feed rates for maximum productivity.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What is the primary application for KORLOY CN20 grade grooving inserts?
A: CN20 is a high-performance PVD coated grade optimized for parting-off, external grooving, and necking operations in carbon steels, alloy steels, and stainless steels.
Q: What advantage does the -M chipbreaker geometry provide?
A: The -M medium chipbreaker controls chip flow effectively, preventing long stringy chips from wrapping around the workpiece or toolholder during deep cuts.
Q: How many inserts are included in each box?
A: Each factory-sealed box contains 10 indexable grooving inserts.
Need Help With KORLOY Inserts?
Looking for a KORLOY equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This KORLOY insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.