Mitsubishi MMT16ERAG55-S VP15TF Threading Insert | MMC Japan
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MMT16ERAG55-S VP15TF
Mitsubishi Materials | External Partial Profile 55° AG (Whitworth/BSP/BSPT)
The Mitsubishi MMT16ERAG55-S VP15TF is an exceptionally versatile external threading insert featuring a partial profile 55-degree AG geometry. The "AG" designation signifies an extended pitch range, allowing a single tool to cut threads from 0.5mm to 3.0mm (48 to 8 TPI). This is the professional choice for CNC threading of BSW, G-series pipe threads, and R-series tapered threads. Engineered with the -S type 3D molded chipbreaker and the VP15TF Miracle PVD coating, it ensures high-efficiency threading of stainless steel and alloyed steels with maximum chip evacuation control.
Technical Specifications
| ISO/Metric Designation | MMT16ERAG55-S |
|---|---|
| Thread Profile | 55° Partial Profile (AG Range) |
| Pitch Range (Metric) | 0.5 - 3.0 mm |
| Pitch Range (Inch) | 48 - 8 TPI |
| Grade / Coating | VP15TF (Miracle Al-Ti-N PVD) |
VP15TF Miracle Grade
The VP15TF grade is Mitsubishi's premium universal carbide substrate. Combined with the Miracle (Al-Ti-N) PVD coating, it provides a high balance of toughness and wear resistance. This grade is specifically designed to eliminate built-up edge (BUE), making it ideal for indexable threading in gummy materials like 304/316 stainless steel and carbon steels.
-S Type (3D) Chipbreaker
External threading often generates continuous, dangerous chips. The -S molded chipbreaker utilizes 3D rake geometry to break chips into short spirals. This significantly reduces cutting heat and friction, protecting the thread surface finish and ensuring the tip of the insert does not chip during high-speed CNC threading cycles.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Typical No. of Passes |
|---|---|---|
| Carbon Steel (S45C) | 100 - 180 m/min | 8 - 18 |
| Stainless Steel (304/316) | 80 - 140 m/min | 10 - 22 |
| Alloy Steel (SCM440) | 90 - 160 m/min | 9 - 20 |
PRECISION TOOLING MATCH
This 16ER AG55 insert is designed to fit Mitsubishi MMTE external holders and all standard 16mm threading tool shanks.
Shop MMTE Holders →Metric vs. Inch Cross-Reference
| Feature | Metric Designation | Inch Designation (ANSI) |
|---|---|---|
| Insert Size | 16 ER | 16ER (3/8" Inscribed Circle) |
| Pitch Range | 0.5 - 3.0 mm | 48 - 8 TPI |
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.