Korloy MRMN200-M NC3030 2mm Full Radius R1.0 Steel Profiling Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MRMN200-M NC3030 is a high-toughness 2.0mm Full Radius (R1.0) Profiling Insert, precision-engineered for Steel (P) applications where stability is a challenge. Featuring the advanced NC3030 CVD coating, this insert is the go-to solution for interrupted cuts and machining with long overhangs. The Full Radius (Round Nose) geometry, combined with the -M (Medium) chipbreaker, ensures smooth chip management and superior edge security on carbon and alloy steels.
Superior Edge Security: NC3030 is designed to be more "forgiving" than NC3020. Its specialized CVD layer and tough substrate provide excellent resistance to chipping and thermal shock, making it ideal for older machines or workpieces with surface interruptions (like holes or keyways).
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MRMN200-M |
| Insert Shape | Full Radius (Round Nose) |
| Width / Radius | 2.0 mm / R1.0 |
| Grade | NC3030 (High-Toughness Steel CVD) |
Core Performance Benefits:
- Interrupted Cut Specialist: The tough substrate allows for stable machining even through holes, keyways, or scaly surfaces.
- Full Radius (R1.0) Contouring: Delivers seamless 3D profiles and smooth fillets on small-to-medium diameter steel shafts.
- Advanced CVD Layer: Protects the cutting edge from high-temperature deformation while maintaining a sharp, stable profile.
- -M Chipbreaker Versatility: Optimized to break chips effectively at medium feed rates, preventing long tangles in soft steels.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Low Carbon Steel (S10C/1010) | 120 - 200 m/min | 0.05 - 0.12 mm/rev |
| Alloy Steel (4140/42CrMo) | 100 - 180 m/min | 0.04 - 0.10 mm/rev |
| Molding/Pre-hardened Steel | 80 - 150 m/min | 0.03 - 0.08 mm/rev |
Compatible Tool Holders:
Precision 2.0mm seat fit for standard holder systems:
- External Holders: MGEHR 1212-2 / 1616-2 / 2020-2
- Internal Holders: MGIVR 2016-2 / 2520-2
Machinist Tip: NC3030 vs. NC3020
Both are CVD grades for steel, but they serve different purposes:
The Tough Choice. Select this for interrupted cuts, slower speeds, or unstable setups. It prevents the sudden brittle failure that can happen with harder grades.
The High-Speed Choice. Best for continuous, clean cuts in mass production. It has higher wear resistance but is more prone to chipping under impact.
Pro Advice: For MRMN200-M NC3030, if you encounter heavy vibration, try reducing your cutting speed (Vc) slightly but keep the feed (f) consistent to allow the -M chipbreaker to function correctly.
Packaging: 10 pieces per box.
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.