Mitsubishi TNMG160408-MA UC5115 | Cast Iron Turning Insert
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TNMG160408-MA UC5115
Mitsubishi Materials | High-Speed Cast Iron Machining Specialist
The Mitsubishi TNMG160408-MA UC5115 is a high-durability CVD coated carbide insert specifically engineered for the high-speed turning of Cast Iron (K-class). Featuring the advanced UC5115 grade, this insert provides exceptional wear resistance and prevents plastic deformation even under intense thermal loads. As a critical long-tail precision tool for industrial CNC lathes, the MA chipbreaker ensures superior chip control during medium-duty cutting cycles.
Cast Iron Specialist | K05-K15 Application | MA Medium Geometry
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Hole/Chip
16.5mm Edge
4.76mm Thick
0.8mm Rad
Chipbreaker
Metric vs ANSI Standards
| Technical Data | ISO (Metric) | ANSI (Inch) |
|---|---|---|
| Part Number | TNMG160408-MA | TNMG 332 MA |
| Inscribed Circle | 9.525 mm | 0.375" |
| Corner Radius | 0.8 mm | 0.031" |
UC5115 Grade Material
The UC5115 grade is Mitsubishi's premier choice for Cast Iron turning. By utilizing a thick CVD coating with optimized Alumina ($Al_2O_3$) layers, it achieves extreme hardness. This indexable turning insert is designed to withstand the abrasive nature of grey and ductile iron while maintaining a sharp edge.
MA Chipbreaker Geometry
The MA chipbreaker is a balanced medium-cutting geometry. Even in brittle materials like cast iron, it provides a stable cutting action that reduces vibration and improves surface finish. It prevents chip welding and facilitates high-speed machining without compromising tool integrity.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Grey Cast Iron (FC250) | 200 - 450 m/min | 0.15 - 0.45 mm/rev | 0.5 - 4.0 mm |
| Ductile Cast Iron (FCD) | 150 - 350 m/min | 0.15 - 0.40 mm/rev | 0.5 - 3.5 mm |
MATCHING TOOL HOLDERS
Optimized for standard MTJNR/L or WTJNR/L turning tool holders (Size 16).
Browse Sie 16 Holders →
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.