Mitsubishi GPMT140408-U2 VP15TF Carbide Insert | Genuine MMC Japan
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GPMT140408-U2 VP15TF
Mitsubishi Materials | High-Performance Copying & Turning Insert
The Mitsubishi GPMT140408-U2 VP15TF is a heavy-duty parallelogram turning insert engineered for precision copying, profiling, and general turning. Powered by Mitsubishi’s legendary Miracle Coating (PVD), the VP15TF grade is the industry benchmark for machining stainless steel and high-temperature alloys. The larger 14mm size and 0.8mm corner radius provide excellent edge strength for medium-range cutting operations.
Technical Specifications
| ISO Code (Metric) | GPMT140408-U2 |
|---|---|
| ANSI Code (Inch) | GPMT 432-U2 |
| Material Grade | VP15TF (PVD Miracle Coating) |
| Corner Radius | 0.8 mm (1/32") |
| Chipbreaker Profile | U2 (Medium Copying) |
VP15TF Miracle Grade
The VP15TF grade combines a high-toughness carbide substrate with a high-adhesion PVD coating. This "Miracle" technology effectively prevents built-up edge (BUE) and notch wear, making it extremely reliable for medium-speed machining of carbon steel, stainless steel, and difficult-to-cut materials.
U2 Chipbreaker Logic
Designed for medium-range copying, the U2 chipbreaker features a specialized rake angle. It provides stable chip control even at fluctuating depths of cut, which is essential for complex CNC profiling where consistent chip evacuation prevents surface damage.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (304/316) | 90 - 170 m/min | 0.12 - 0.30 mm/rev |
| Carbon & Alloy Steel | 110 - 210 m/min | 0.15 - 0.35 mm/rev |
INDUSTRIAL COMPATIBILITY
This GPMT 14-size insert is standard for SRGCR/L and HRGCR/L tool holders.
VIEW COMPATIBLE TOOL HOLDERS →Metric (ISO) vs. Inch (ANSI) Comparison
| Dimension | ISO: GPMT140408 | ANSI: GPMT 432 |
|---|---|---|
| Inscribed Circle (IC) | 12.7 mm | 1/2" |
| Thickness (S) | 4.76 mm | 3/16" |
| 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.