Mitsubishi CNMG120408-MP MC6015 High-Speed Steel Insert (10pcs)
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CNMG120408-MP MC6015
High-Speed Steel Turning | MC6015 Nano-Texture CVD | MP Medium Geometry
The Productivity Leader for Steel Turning
MC6015 Grade (Nano-Texture CVD): The MC6015 is Mitsubishi's premium high-speed steel turning grade. It features a specialized Nano-texture CVD coating that provides extreme resistance to crater wear and plastic deformation. This allows for significantly higher cutting speeds ($V_c$) compared to general-purpose grades, effectively shortening production cycles in carbon and alloy steels.
MP Chipbreaker (Medium-Positive Geometry): The MP chipbreaker is designed for the modern CNC shop. It utilizes a variable-angled land that ensures stable chip breaking even as the feed rate changes. Its "positive" rake design reduces cutting forces and heat generation, which is critical when running at the elevated speeds that the MC6015 grade is capable of handling.
0.8mm (1/32") Performance Radius: The 08 radius provides the ideal balance between surface finish quality and edge strength. It is the global standard for medium-roughing to semi-finishing operations in mass production environments.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120408-MP | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CNMG432-MP | 1/2" | 3/16" | 0.0315" (1/32") |
High-Velocity Cutting Parameters
*MC6015 is optimized for dry or wet high-speed turning. For maximum tool life in continuous cuts, prioritize high surface speeds.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (S45C/1045) | 250 - 450 m/min | 0.15 - 0.45 mm/r | 1.00 - 4.00 mm |
| Alloy Steel (4140/SCM440) | 200 - 350 m/min | 0.15 - 0.40 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Maximum rigidity is essential for high-speed MC6015 cycles. Use DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: MC6015 vs. MC6025
MC6015 (Speed Master): Use this grade for high-speed continuous turning in stable conditions. It offers superior wear resistance but is less tolerant of interruptions.
MC6025 (Universal Toughness): Switch to MC6025 if your process involves significant interrupted cuts or if the machine/setup lacks the rigidity to maintain very high surface speeds.
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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.