Mitsubishi JOMT080320ZZSR-JM MP6120 Milling Insert | MMC Japan
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JOMT080320ZZSR-JM MP6120
Mitsubishi Materials | AJX08 Series Toughened Steel Roughing Specialist
The Mitsubishi JOMT080320ZZSR-JM MP6120 is a high-performance high-feed milling insert designed for the AJX08 cutter series. Engineered for the rigors of interrupted cutting and unstable machining environments, the MP6120 grade provides the extreme toughness required for roughing ISO-P Steels. With the JM chipbreaker, this insert offers a reinforced edge that excels in heavy-duty applications where fracture resistance is the primary concern.
Technical Specifications
| ISO Designation (Metric) | JOMT080320ZZSR-JM |
|---|---|
| ANSI Designation (Inch) | JOMT 2.5(3)6-JM |
| Insert Size | 08 (For AJX 08 Type Cutters) |
| Corner Radius (RE) | 2.0 mm (.0787") |
| Grade / Coating | MP6120 (Al-Ti-Cr-N PVD Tough Grade) |
MP6120 Tough Grade
The MP6120 grade is a PVD-coated carbide featuring Mitsubishi's specialized Al-Ti-Cr-N layer. This coating is specifically formulated to withstand thermal cracking and mechanical shock. It is the first choice for roughing alloy steels under interrupted conditions or when using older, less rigid CNC machines.
JM Chipbreaker Strategy
The JM (General Machining) geometry on this JOMT08 insert provides a strengthened cutting edge. By optimizing the rake angle for durability, the JM chipbreaker allows for high feed metal removal while maintaining lower cutting temperatures and preventing catastrophic edge failure in hard-skin materials.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 120 - 200 m/min | 0.5 - 1.2 mm/t |
| Hardened Steel (< 45HRC) | 80 - 150 m/min | 0.4 - 1.0 mm/t |
AJX08 TOOLING SYSTEM
Requires AJX 08 Type high-feed cutters (End Mills and Modular Heads).
Shop AJX 08 Tool Holders →Metric vs. Inch Cross-Reference
| Feature | ISO: JOMT080320 | ANSI: JOMT 2.5(3)6 |
|---|---|---|
| Inscribed Circle (IC) | 8.0 mm | 5/16" |
| Thickness (S1) | 3.4 mm | .134" |
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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.