Mitsubishi QOMT1856R-M2 VP15TF Milling Insert | Genuine MMC Japan
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QOMT1856R-M2 VP15TF
Mitsubishi Materials | AQX Series Maximum-Size Multifunctional Milling Insert
The Mitsubishi QOMT1856R-M2 VP15TF is the largest, most robust indexable milling insert in the prestigious AQX multifunctional cutter family. Designed for high-metal removal rates (MRR), this "18" size insert is the definitive choice for heavy-duty CNC milling, deep pocketing, and high-efficiency ramping. Engineered with the -M2 medium-cut chipbreaker and the proprietary VP15TF Miracle PVD coating, it delivers uncompromising durability when machining stainless steel, carbon steels, and heat-resistant alloys under high-torque conditions.
Technical Specifications
| ISO/Metric Designation | QOMT1856R-M2 |
|---|---|
| ANSI Equivalent | QOMT 65.5 R-M2 |
| Grade / Coating | VP15TF (Miracle Al-Ti-N PVD) |
| Thickness / Width Class | 5.6 mm / 18 mm |
| Chipbreaker Style | -M2 (Optimized Edge Strength) |
VP15TF Miracle PVD Grade
The VP15TF grade utilizes a specialized micro-grain carbide substrate coated with Mitsubishi’s Miracle Al-Ti-N layer. This provides an optimal balance of toughness and oxidation resistance. It is specifically designed to combat built-up edge (BUE) and thermal cracking in milling gummy materials like 316L stainless steel, where extreme heat is generated at the cutting zone.
-M2 High-Strength Geometry
The -M2 chipbreaker is the workhorse for heavy milling. It features a reinforced cutting edge designed to handle the massive cutting resistance encountered in large arbor-style cutters. This geometry ensures stable chip control during high-feed milling, reducing the risk of edge micro-chipping and improving the final thread surface finish and dimensional stability.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) |
|---|---|---|
| Structural & Carbon Steel | 150 - 250 m/min | 0.15 - 0.35 mm/t |
| Stainless Steel (SUS300) | 90 - 160 m/min | 0.12 - 0.25 mm/t |
| Hardened / Alloy Steel | 80 - 150 m/min | 0.10 - 0.28 mm/t |
AQX SERIES COMPATIBILITY
The QOMT1856R-M2 insert is designed for large-scale Mitsubishi AQX Arbor Cutters (Arbor diameters typically 50mm to 100mm+).
View Large AQX Milling Holders →Metric vs. Inch Cross-Reference
| Feature | Metric Designation | Inch Designation (ANSI) |
|---|---|---|
| Insert Size | 18 (18mm Class) | QOMT 6 Class |
| Thickness | 5.6 mm | 0.220 inch |
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This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.