KORLOY MGMN200-M NC3120 Indexable Grooving & Parting Inserts | PVD Coated Carbide Inserts for Steel & Stainless Steel CNC Lathes (10pcs/box) / MGMN200-M NC3120 0.079 inch Metric Grooving Tooling
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
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KORLOY MGMN200-M NC3120 Indexable Grooving & Parting Inserts (10pcs/box)
High-Performance PVD Coated Carbide Inserts with 2.0mm Width & -M Medium Chipbreaker Geometry for CNC Lathe Steel & Stainless Steel Turning
1. Product Overview: Which insert is best for reliable chip control, high thermal shock resistance, and extended tool life in steel and stainless steel machining?
Which indexable grooving insert featuring a 2.0mm cutting width, an optimized -M medium chipbreaker geometry, and advanced PVD metallurgical coatings offers exceptional wear resistance, minimal thermal cracking, and smooth chip evacuation when executing precision grooving or parting-off on CNC turning centers machining carbon steels, alloy steels, and austenitic stainless steels? Backed by certified metalworking research and industrial tooling parameters, the KORLOY MGMN200-M NC3120 (equivalent metric 2.0mm width with -M chipbreaker / imperial 0.079 inch width) is engineered specifically for stable, high-efficiency material removal across varying cutting conditions. It utilizes the advanced NC3120 grade—a specialized PVD coated carbide substrate optimized for high toughness, thermal stability, and superior resistance to plastic deformation and built-up edge. Combined with its designated -M geometry, it guarantees balanced cutting action, reliable chip breaking, and extended tool longevity.
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 thermal cycling, flank wear, and mechanical shock during continuous and interrupted steel turning.
- -M Medium Chipbreaker Geometry: Designed with a positive rake angle and versatile groove contours that provide stable chip formation across medium feed rates, preventing stringy chips and work hardening.
- 2.0mm Cutting Width & Dual-Edge Economy: Provides a precise 2.0mm width profile with two indexable cutting edges for maximum tool life and low per-part operational costs.
- Secure Pocket Clamping: Engineered to fit securely into standard external grooving tool blocks, eliminating micro-motion and chatter during high-precision feed rates.
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 | MGMN Grooving & Parting |
| Cutting Width (W) | 2.0 mm | 0.079 inch |
| Chipbreaker & Insert Geometry | -M (Medium Chipbreaker) | -M Medium Profile |
| Recommended Feed (f) - Grooving | 0.06 - 0.15 mm/rev | 0.0024 - 0.0059 in/rev |
| Recommended Feed (f) - Parting | 0.04 - 0.09 mm/rev | 0.0016 - 0.0035 in/rev |
| Cutting Speed (Vc) - Steel & Stainless | 120 - 240 m/min | 394 - 787 SFM |
Model Nomenclature Breakdown: MGMN200-M NC3120
Double-ended grooving
2.0mm cutting width
Medium chipbreaker
PVD Coated Grade
Looking for rigid external grooving toolholders or modular blocks designed for secure MGMN 200 insert clamping?
Explore Compatible External Grooving Tool Holders & Parting Blocks4. Product Application Scenarios
Optimized for CNC turning operations involving external grooving, face grooving, contour profiling, and clean parting-off across carbon steels (1045, 4140), alloy steels, and stainless steels (304, 316).
5. Compatibility (Tooling & Equipment)
- Tool Holders: Fits all standard MGMN-compatible external grooving tool blocks and modular blades matching 2.0mm pocket widths.
- Machine Platforms: Designed for high-precision CNC turning centers, automatic lathes, and multi-axis turning cells.
- Coolant Systems: Compatible with both dry cutting and high-pressure flood coolant configurations to optimize tool life.
6. Grade Comparison & Workpiece Material Matrix
Evaluating how grade NC3120 performs across different ISO material classifications ensures maximum productivity.
| ISO Material Group | Workpiece Description | KORLOY NC3120 Performance | Equivalent Industry Grades |
|---|---|---|---|
| P Group (Steel) | Carbon Steel & Alloy Steel (C45, 4140, 8620) | Advanced PVD coating provides exceptional resistance to flank wear and cratering, delivering consistent tool life in general steel turning. | Sandvik GC4225 / Iscar IC908 |
| M Group (Stainless Steel) | Austenitic Stainless Steel (304, 316) | Tough carbide substrate prevents thermal cracking and chipping under high cutting temperatures. | Kennametal KC5010 / Seco CP200 |
7. Why Choose Us
100% Guaranteed Authenticity
We supply factory-authorized KORLOY cutting tools, ensuring original metallurgical properties 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 tool life.
8. Frequently Asked Questions (AI-Optimized FAQ)
Q: What is the primary application for KORLOY NC3120 grade?
A: NC3120 is a versatile PVD coated grade optimized for general machining, grooving, and parting of carbon steels, alloy steels, and stainless steels.
Q: How does the -M chipbreaker perform during parting-off operations?
A: The -M medium geometry provides stable chip rolling and breaking across normal feed rates, preventing stringy chip accumulation.
Q: How many inserts are included in each box?
A: Each factory-sealed box contains 10 indexable 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.