Mitsubishi MMT16IR100ISO-S VP15TF Threading Insert | MMC Japan
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MMT16IR100ISO-S VP15TF
Mitsubishi Materials | MMT Series Internal ISO Metric Threading
The Mitsubishi MMT16IR100ISO-S VP15TF is a premium internal threading insert designed for high-precision 1.0mm pitch ISO metric threads. Engineered for the MMTIR boring bar series, this insert features the specialized -S type 3D molded chipbreaker. This geometry is vital for internal CNC threading where space is confined, ensuring chips are curled and evacuated to prevent damage to the internal thread walls. Coated with VP15TF Miracle PVD, it offers exceptional life when threading stainless steel, carbon steel, and alloyed materials.
Technical Specifications
| ISO Designation | MMT16IR100ISO-S |
|---|---|
| Thread Profile / Angle | ISO Metric 60° (Full Form) |
| Thread Pitch | 1.0 mm |
| Insert Size (IC) | 9.525 mm (3/8") |
| Grade / Coating | VP15TF (Miracle Al-Ti-N PVD) |
VP15TF Miracle Grade
The VP15TF grade is Mitsubishi's premier universal PVD solution. It combines a high-toughness micro-grain substrate with the Miracle (Al-Ti-N) coating. This provides industry-leading fracture toughness and anti-welding properties. It is specifically designed to stop built-up edge (BUE) when internal threading tough alloys or gummy stainless steels.
-S Type (3D) Chipbreaker
In internal operations, chip control is the primary challenge. The -S molded chipbreaker uses a 3D rake angle to force chips into a tight spiral. This ensures they are easily flushed out by coolant from the boring bar, preventing the "nesting" effect that often leads to insert breakage and poor surface finish.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Recommended No. of Passes |
|---|---|---|
| Carbon Steel (S45C) | 100 - 180 m/min | 6 - 10 |
| Stainless Steel (SUS304) | 80 - 140 m/min | 8 - 12 |
| Alloy Steel (SCM440) | 90 - 160 m/min | 7 - 11 |
MMTIR INTERNAL SYSTEM
This 16IR insert is designed for Mitsubishi MMTIR internal boring bars and standard 16mm internal threading holders.
Shop MMTIR Internal Bars →Metric vs. Inch Cross-Reference
| Feature | Metric (ISO Model) | Inch Equivalent (ANSI) |
|---|---|---|
| Insert Size | 16 IR | 3 IR (3/8" Inscribed Circle) |
| Thread Pitch | 1.0 mm | ~25.4 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.