Mitsubishi MMT16IR200ISO-S VP15TF Threading Insert | MMC Japan
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MMT16IR200ISO-S VP15TF
Mitsubishi Materials | Internal ISO Metric Threading | 2.0mm Pitch
The Mitsubishi MMT16IR200ISO-S VP15TF is a robust internal threading insert designed for 2.0mm pitch ISO metric threads (common for M14, M16 standard threads). As a part of the premium MMT series, this insert features the advanced -S type 3D chipbreaker, specifically designed for internal CNC threading where space is confined and chip evacuation is a challenge. Coated with the high-performance VP15TF Miracle PVD coating, it is the premier choice for threading carbon steel, stainless steel, and alloyed materials.
Technical Specifications
| ISO Designation | MMT16IR200ISO-S |
|---|---|
| Thread Profile / Angle | ISO Metric 60° (Full Form) |
| Thread Pitch | 2.0 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 grade. By pairing a high-toughness micro-grain substrate with the Miracle (Al-Ti-N) coating, it provides exceptional wear resistance and anti-welding properties. It is specifically designed to prevent built-up edge (BUE) when internal threading stainless steel (SUS304/316).
-S Type 3D Chipbreaker
In internal operations, chip control is paramount. The -S molded chipbreaker utilizes a 3D rake surface that actively curls and breaks the chip into smaller, manageable pieces. This ensures that chips are easily evacuated by the boring bar's coolant, preventing chip "nesting" which often results in surface damage or insert failure.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Recommended No. of Passes |
|---|---|---|
| Carbon Steels (S45C) | 90 - 170 m/min | 10 - 16 |
| Stainless Steels (SUS304) | 70 - 130 m/min | 12 - 18 |
| Alloy Steels (SCM440) | 80 - 150 m/min | 11 - 17 |
MMTIR INTERNAL SYSTEM
This 16IR insert is designed for Mitsubishi MMTIR internal boring bars and standard 16mm internal threading tools.
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 | 2.0 mm | ~12.7 TPI (Threads Per Inch) |