KORLOY MGMN200-G NC3120 Indexable Parting & Grooving Inserts | PVD Coated Carbide Inserts for CNC Lathe Cut-Off Tools (10pcs/box) / MGMN200-G NC3120 Metric & Imperial Grooving Tooling
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
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✓ Technical Support: Need grade selection help? Contact Engineer
KORLOY MGMN200-G NC3120 Indexable Parting, Grooving & Turning Inserts (10pcs/box)
High-Performance PVD Coated Carbide Inserts with G-Type Chipbreaker for CNC Lathe Cut-Off and Precision Grooving
1. Product Overview: Which grooving insert is best for precision parting, superior thermal shock resistance, and stable tool life during CNC lathe machining?
Which indexable parting and grooving insert featuring specialized G-type chipbreaker geometry, high edge strength, and advanced PVD metallurgical coatings offers superior chip evacuation, minimal cutting resistance, and smooth surface finishes when executing deep grooving, cut-off, and profiling operations on CNC turning centers? Backed by certified metalworking research and industrial tooling parameters, the KORLOY MGMN200-G NC3120 (equivalent metric and imperial grooving configurations) is engineered specifically for stable, high-efficiency material removal across demanding industrial applications. It utilizes the advanced NC3120 grade—a specialized PVD coated carbide substrate optimized for high toughness, thermal stability, and superior resistance to flank wear and plastic deformation when machining carbon steels and alloy steels. Combined with its unique G-type geometry, it guarantees controlled chip curling, reliable chip breakage, and extended tool durability.
2. Product Core Advantages (Key Features)
- NC3120 Advanced PVD Grade: Features a high-toughness carbide substrate combined with a multi-layer PVD coating engineered to withstand extreme thermal stress and wear during steel parting and grooving operations.
- G-Type Chipbreaker Geometry: Designed with a sharp, positive cutting edge and specialized ground geometry that delivers excellent chip control and narrow chip curling across various feed rates.
- Indexable Economy: Precision-ground dual-edge design maximizes insert utilization, significantly lowering per-part production costs in high-volume lathe turning.
- Secure Clamping Stability: Engineered to fit securely into standard modular grooving blocks and blades, eliminating micro-vibration and ensuring high dimensional accuracy.
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 Type / Series | MGMN Grooving & Parting Insert | MGMN Grooving & Parting Insert |
| Width / Size Code | 2.0 mm (MGMN200-G) | 0.079 in (Inch Compatible) |
| Carbide Grade | NC3120 (PVD Coated) | NC3120 PVD Coated |
| Recommended Feed Rate (fn) | 0.04 - 0.10 mm/rev | 0.0016 - 0.0039 in/rev |
| Cutting Speed (Vc) - Steel & Alloy | 130 - 250 m/min | 426 - 820 SFM |
Model Nomenclature Breakdown: MGMN200-G NC3120
Grooving insert series
Width (2.0mm)
Ground G-type chipbreaker
PVD Coated Grade
Looking for rigid external grooving toolholders, cut-off blades, or modular blocks designed for secure MGMN insert clamping?
Explore Compatible Grooving Holders & Cut-Off Blades4. Product Application Scenarios
Optimized for CNC lathe operations involving parting-off, external grooving, face grooving, and profile turning across carbon steels (C45, 1045), alloy steels (4140, 4340), and low-alloy construction steels.
5. Compatibility (Tooling & Equipment)
- Toolholders & Blades: Fits all standard external grooving toolholders and parting blades engineered for MGMN200 pocket dimensions.
- Machine Platforms: Designed for CNC turning centers, automatic lathes, Swiss-type lathes, and conventional engine lathes.
- Coolant Systems: Fully compatible with high-pressure internal coolant delivery and flood coolant setups to optimize chip evacuation and thermal management.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3120 performs across different ISO material classifications ensures maximum productivity and predictable tool life.
| ISO Material Group | Workpiece Description | KORLOY NC3120 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel & Alloy Steel (C45, 4140, 4340) | Advanced PVD coating provides exceptional resistance to thermal wear and edge chipping during continuous steel parting. | Sandvik GC4325 / Iscar IC830 |
| K Group (Cast Iron) | Gray Cast Iron & Ductile Iron (GG25, GGG40) | Balanced substrate toughness resists abrasive wear under moderate cutting speeds. | Kennametal KCPK20 / Seco TK1001 |
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 NC3120 grade grooving inserts?
A: NC3120 is a robust PVD coated grade optimized for parting-off, external grooving, and turning operations in carbon steels and alloy steels.
Q: How does the G-type chipbreaker perform during high-feed parting operations?
A: The ground G-type geometry controls chip formation and curls chips tightly, preventing entanglement around the workpiece and tool.
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.