Mitsubishi MMT16ER150ISO-S VP15TF Threading Insert | MMC Japan
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MMT16ER150ISO-S VP15TF
Mitsubishi Materials | MMT Series External ISO Metric Threading
The Mitsubishi MMT16ER150ISO-S VP15TF is a precision-ground external threading insert designed for 1.5mm pitch ISO metric threads. As a flagship product in the MMT series, this insert is equipped with the advanced -S type 3D chipbreaker, engineered to provide superior chip control during heavy-duty threading cycles. Coated with the high-performance VP15TF Miracle PVD coating, it is the industry standard for threading steel, stainless steel, and alloyed materials where edge toughness is paramount.
Technical Specifications
| ISO Designation | MMT16ER150ISO-S |
|---|---|
| Thread Standard / Angle | ISO Metric 60° (Full Form) |
| Thread Pitch | 1.5 mm |
| Insert Size (IC) | 9.525 mm (3/8") |
| Grade / Coating | VP15TF (Miracle PVD Coated) |
VP15TF Miracle Grade
The VP15TF grade utilizes a high-toughness micro-grain carbide substrate combined with the specialized Miracle Al-Ti-N coating. This grade excels in indexable threading by providing high fracture resistance and preventing built-up edge (BUE), specifically when machining sticky materials like stainless steel or low-carbon steels.
-S Type 3D Chipbreaker
The -S type 3D geometry features a molded rake surface that actively curls chips into manageable shapes. In CNC threading, this geometry reduces cutting forces and prevents long ribbon chips from wrapping around the workpiece, ensuring a pristine thread surface and protecting the threading tool holder.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Total No. of Passes |
|---|---|---|
| Carbon Steels (P10-P30) | 100 - 180 m/min | 8 - 14 |
| Stainless Steels (M10-M30) | 80 - 150 m/min | 10 - 16 |
| Alloy Steels (High Hardness) | 70 - 130 m/min | 11 - 18 |
MMTE EXTERNAL TOOLING
The MMT16 series is designed for use with Mitsubishi MMTE external threading holders.
Shop MMTE Holders →Metric vs. Inch Cross-Reference
| Feature | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Insert Size Designation | 16 ER | 3 ER (3/8" IC) |
| Thread Pitch | 1.5 mm | ~16.9 TPI |