Korloy MGMN300-04-R NC3030 3mm R0.4 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 MGMN300-04-R NC3030 is a high-performance 3.0mm Right-Hand Profiling and Grooving Insert engineered for maximum efficiency in Steel (P) machining. Featuring a robust 0.4mm corner radius (R0.4) and advanced CVD coating technology, this insert is designed to excel in high-speed, continuous cutting environments. The NC3030 grade offers superior thermal stability and wear resistance, making it the premier choice for large-scale production of automotive parts, shafts, and general steel components.
High-Feed Efficiency: The R0.4 radius provides an exceptionally strong cutting edge, allowing for more aggressive feed rates and increased lateral stability. Combined with the CVD-coated NC3030 grade, this insert significantly reduces cycle times in stable steel machining setups.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | MGMN300-04-R |
| Width / Radius | 3.0 mm / R0.4 |
| Direction | Right-Hand (-R) |
| Grade | NC3030 (Steel Optimized CVD) |
Core Performance Benefits:
- Reinforced Edge Strength: The R0.4 radius minimizes chipping and allows for heavier depth-of-cuts during profiling.
- Superior CVD Coating: Provides a massive increase in tool life during high-speed turning by acting as a powerful thermal barrier.
- Excellent Wear Resistance: Specifically formulated to resist crater wear and abrasive wear in carbon and alloy steels.
- Right-Hand Precision: Optimized for right-hand tool paths, profiling, and finishing in multi-axis CNC operations.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (1045/S45C) | 150 - 250 m/min | 0.08 - 0.22 mm/rev |
| Alloy Steel (4140/42CrMo) | 120 - 210 m/min | 0.07 - 0.18 mm/rev |
| Cast Steel / Ductile Iron | 100 - 180 m/min | 0.08 - 0.20 mm/rev |
Compatible Tool Holders:
Precision fit for standard 3.0mm seat Right-Hand holders:
- External Holders: MGEHR 2020-3 / 2525-3
- Internal Holders: MGIVR 2520-3 / 3125-3
Tech Tip: R0.4 vs R0.2 in Steel Machining
Choosing the right radius for your NC3030 insert is critical for productivity:
The Efficiency Specialist. Higher edge strength, better heat dissipation, and allows for much higher feed rates. Use this for general steel profiling where speed is the priority.
The Detail Specialist. Lower cutting forces and sharper corners. Use this for thin-walled parts or when the drawing requires a very small corner radius.
Machinist's Pro Tip: For MGMN300-04-R NC3030, the CVD coating thrives at high temperatures. Don't be afraid to push the cutting speed ($Vc$); running it too slow can actually lead to premature wear as the coating doesn't reach its optimal "slick" state.
Packaging: 10 pieces per box.
Korloy MGMN300-04-R price, 3mm right hand profiling insert for steel, NC3030 vs PC5300 for steel grooving, high feed 3.0mm grooving insert, CVD coated profiling insert for CNC lathe
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.