Mitsubishi DCMT11T304 VP15TF Carbide Turning Insert for Stainless & Steel
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DCMT11T304 VP15TF
Miracle PVD Technology | Multi-Material Universal Grade | 55° Diamond
Superior Sharpness for Mixed-Metal Machining
VP15TF Grade (The Miracle PVD): Mitsubishi’s VP15TF is a premium PVD-coated micro-grain carbide. The proprietary "Miracle Coating" (Al-Ti-N) provides incredible adhesion and heat resistance. Unlike bulky CVD coatings, PVD allows the insert to maintain an ultra-sharp cutting edge, which is critical for reducing cutting forces and preventing "Built-Up Edge" (BUE) in gummy materials like stainless steel or low-carbon steel.
DCMT Geometry (Positive Rake): The 55-degree diamond profile is the world standard for precision profiling and internal boring. The 7-degree positive relief angle ensures clean shearing, which results in superior surface finishes and reduced vibration on slender components.
0.4mm Radius (Precision Precision): The "04" (1/64") nose radius is the ideal choice for finishing. It minimizes radial pressure, allowing for tight tolerances and excellent surface roughness ($Ra$) even on machines with lighter spindle rigidity.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | DCMT32.51 | 3/8" | 5/32" | 0.0157" (1/64") |
Recommended Cutting Parameters
*VP15TF is designed for medium speeds. Always use high-pressure coolant for Stainless Steel.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 90 - 180 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.50 mm |
| Alloy Steel (4140) | 120 - 260 m/min | 0.10 - 0.25 mm/r | 0.50 - 2.00 mm |
Compatible Tool Holders
Maximum versatility with 11-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 11 HoldersPro-Tip: VP15TF vs. US735
VP15TF (PVD Generalist): Best for finishing and light semi-finishing of stainless and steel. It provides the best surface finish due to the sharp edge.
US735 (CVD Specialist): If you are doing heavy interrupted cuts or roughing stainless steel, switch to US735. It is tougher and can handle higher impact than the VP15TF.
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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.