Korloy MGMN400-02-R NC3030 4mm R0.2 Right-Hand Steel Profiling Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy MGMN400-02-R NC3030 is a high-productivity 4.0mm Right-Hand Profiling and Grooving Insert. Specifically optimized for Steel (P) mass production, this insert features the thick-layer NC3030 CVD coating. This advanced coating technology acts as a superior thermal barrier, allowing for significantly higher cutting speeds and consistent tool life in long-run steel machining. With a sharp 0.2mm corner radius (R0.2), it provides the perfect balance between the rigidity of a 4mm insert and the precision required for fine profiling.
CVD Efficiency for Heavy Grooving: At 4.0mm wide, cutting heat can build up rapidly. The NC3030 grade is engineered to thrive under these conditions, outperforming PVD grades in continuous, high-speed steel turning by resisting crater wear and maintaining edge sharpness.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN400-02-R |
| Insert Width / Radius | 4.0 mm / R0.2 |
| Direction | Right-Hand (-R) |
| Grade | NC3030 (Steel Optimized CVD) |
Core Performance Benefits:
- Extreme Thermal Stability: The thick CVD coating maintains edge hardness even at high surface speeds ($Vc$), preventing plastic deformation.
- Precision Corner Definition: The R0.2 radius allows for sharp 90-degree shoulders and detailed profiling in wide 4.0mm slots.
- Right-Hand Geometry: Specifically designed for right-hand tool paths and sub-spindle operations in modern CNC centers.
- Extended Tool Life: Formulated to reduce abrasive wear in carbon, alloy, and cast steels during high-volume runs.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Mild/Carbon Steel (1045) | 150 - 240 m/min | 0.08 - 0.18 mm/rev |
| Alloy Steel (42CrMo) | 120 - 200 m/min | 0.07 - 0.15 mm/rev |
| Cast Steel / Iron | 100 - 180 m/min | 0.10 - 0.22 mm/rev |
Compatible Tool Holders:
Precision fit for standard 4.0mm seat Right-Hand tool systems:
- External Holders: MGEHR 2020-4 / 2525-4 / 3232-4
- Internal Holders: MGIVR 3125-4 / 4032-4
Steel Machining Insight: CVD vs. PVD for 4mm Grooves
When choosing between NC3030 and PC5300, consider your production volume:
The Mass Production Pro. Built for heat. Best for continuous cutting of steel at high speeds. It lasts longer in abrasive steel but is more sensitive to heavy interruptions than PVD.
The Universal Tough-Guy. Thinner coating with higher edge toughness. Ideal for small batches, stainless steel, or when the cut involves heavy shocks (interruptions).
Machinist's Pro Tip: For MGMN400-02-R NC3030, the CVD coating thrives on consistent heat. To prevent edge build-up and maximize the slickness of the coating, ensure your cutting speed ($Vc$) is high enough to generate the proper chip flow.
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.