Mitsubishi GPMT11T308-U2 VP15TF Carbide Insert | Genuine MMC Japan
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GPMT11T308-U2 VP15TF
Mitsubishi Materials | High-Performance Miracle Coated Series
The Mitsubishi GPMT11T308-U2 VP15TF is a premium parallelogram turning insert designed for precision copying and general turning. Powered by Mitsubishi’s legendary Miracle Coating (PVD), the VP15TF grade offers exceptional versatility. It is the industry’s go-to solution for machining stainless steel, carbon steel, and heat-resistant alloys, ensuring extended tool life and superior surface integrity.
Technical Specifications
| ISO Code (Metric) | GPMT11T308-U2 |
|---|---|
| ANSI Code (Inch) | GPMT 3(2.5)2-U2 |
| Material Grade | VP15TF (PVD Miracle Coating) |
| Corner Radius | 0.8 mm (1/32") |
| Chipbreaker | U2 (Medium Copying) |
VP15TF Grade Advantage
The VP15TF Miracle Grade is a high-toughness carbide substrate combined with a high-adhesion PVD coating. It excels at preventing built-up edge (BUE) and notch wear, making it extremely reliable for medium-speed machining of austenitic stainless steels and alloy steels.
U2 Chipbreaker Profile
The U2 chipbreaker is specialized for copying and profiling. It features a unique rake angle designed to facilitate stable chip breaking even at varying depths of cut, reducing the risk of "bird-nesting" chips during CNC lathe operations.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (304/316) | 100 - 180 m/min | 0.10 - 0.25 mm/rev |
| Carbon & Alloy Steel | 120 - 220 m/min | 0.15 - 0.30 mm/rev |
COMPATIBLE CNC TOOLING
This GPMT insert is typically mounted on SRGCR/L or HRGCR/L tool holders.
EXPLORE COMPATIBLE TOOL HOLDERS →Metric (ISO) vs. Inch (ANSI) Comparison
| Dimension | ISO: GPMT11T308 | ANSI: GPMT 3(2.5)2 |
|---|---|---|
| Inscribed Circle (IC) | 9.525 mm | 3/8" |
| Thickness (S) | 3.97 mm | 5/32" |
| Corner Radius (RE) | 0.8 mm | 1/32" |
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.