Mitsubishi CNMG120408-MP MC6025 Carbide Turning Insert (10pcs)
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CNMG120408-MP MC6025
The Universal Steel King | MC6025 Nano-Texture | MP Medium Control
The First Choice for General Steel Turning
MC6025 Grade (Nano-Texture CVD Coating): The MC6025 is Mitsubishi's most popular steel turning grade. Using an advanced Al2O3 (Alumina) coating with a refined nano-texture, it provides an incredible barrier against heat and chemical wear. This grade is specifically engineered to handle the "unpredictable" — surviving light interrupted cuts while maintaining high speeds in continuous turning.
MP Chipbreaker (Medium-Positive Geometry): The MP breaker is designed for the modern CNC environment. It features a unique wave-profile land that maintains constant chip control even when the feed rate or depth of cut fluctuates. Its "Positive" rake design reduces cutting resistance, lowering spindle load and extending tool life.
0.8mm (1/32") All-Purpose Radius: The 08 radius is the industry standard for medium turning. It provides a robust cutting edge that resists chipping while delivering the surface finish quality ($Ra$) required for most industrial semi-roughing and finishing specifications.
Metric vs. Imperial Specification
| 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") |
Recommended Cutting Parameters
*The MC6025 grade handles a wide speed range. Use stable parameters for maximum tool life and consistent chip breaking.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 180 - 350 m/min | 0.15 - 0.45 mm/r | 0.80 - 4.50 mm |
| Alloy Steel (4140) | 150 - 280 m/min | 0.15 - 0.40 mm/r | 0.80 - 3.50 mm |
Compatible Tool Holders
Standardize your lathe setup with DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: MC6025 vs. MC6015
MC6025 (The Workhorse): Your first choice for general turning. Better toughness for interrupted cuts and vibration resistance.
MC6015 (The Speed Master): Switch to MC6015 for high-speed continuous turning where you need absolute maximum crater wear resistance and productivity.
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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.