Mitsubishi MMT11IR150ISO-S VP15TF Threading Insert | MMC Japan
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MMT11IR150ISO-S VP15TF
Mitsubishi Materials | MMT Series Internal ISO Metric 1.5mm Pitch
The Mitsubishi MMT11IR150ISO-S VP15TF is a premium internal threading insert engineered for 1.5mm pitch ISO metric threads. Designed for the MMTIR boring bar series, this insert features the advanced -S type 3D chipbreaker. This unique geometry is the ultimate solution for chip control in restricted internal diameters, preventing the "bird-nesting" of chips that often leads to thread surface damage and tool failure. Coated with VP15TF Miracle PVD, it offers unparalleled versatility across steel and stainless steel.
Technical Specifications
| ISO/Metric Designation | MMT11IR150ISO-S |
|---|---|
| ANSI Equivalent (Inch) | 11IR 1.5 ISO-S |
| Thread Standard / Angle | ISO Metric 60° (Full Form) |
| Thread Pitch | 1.5 mm |
| Insert Size (IC) | 6.35 mm (1/4") |
| Grade / Coating | VP15TF (Miracle PVD Coated) |
VP15TF Miracle Grade
The VP15TF grade combines a high-toughness carbide substrate with a specialized Miracle Al-Ti-N PVD coating. This grade is widely recognized for its adhesion resistance, which is critical when indexable threading stainless steel. It prevents the workpiece material from welding to the edge, ensuring sharp thread profiles and extended tool life.
-S Type 3D Geometry
The -S type chipbreaker features a molded 3D rake surface. In internal threading, chips tend to stay in the hole; the -S breaker curls chips into small, manageable shapes that are easily flushed out by coolant. This reduces vibration and prevents built-up edge (BUE) during the final finishing passes.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Total Number of Passes |
|---|---|---|
| Carbon Steel / Alloy Steel | 80 - 160 m/min | 8 - 14 |
| Stainless Steel (300 series) | 60 - 120 m/min | 10 - 16 |
MMTIR INTERNAL HOLDER SYSTEM
Optimized for use with Mitsubishi MMTIR boring bars for stable internal threading operations.
Shop MMT Threading Bars →Metric vs. Inch Cross-Reference
| Feature | Metric: MMT11IR150ISO | ANSI: 11IR 1.5 ISO |
|---|---|---|
| Insert Length (L) | 11 mm | 1/4" IC (Inscribed Circle) |
| Thread Pitch | 1.5 mm | ~17 TPI (Threads Per Inch) |
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.