Mitsubishi SOET12T308PEER-JL VP15TF Milling Insert | Sharp JL Breaker
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SOET12T308PEER-JL VP15TF
Mitsubishi Materials | Precision Low-Resistance Milling
The Mitsubishi SOET12T308PEER-JL VP15TF is a premium indexable milling insert engineered for high-precision shoulder milling and face milling. Featuring the specialized JL (Low Resistance) chipbreaker, it is optimized for machining stainless steel and heat-resistant alloys where tool pressure and vibration must be minimized. The VP15TF Miracle PVD coating ensures a long-lasting sharp edge and superior resistance to built-up edge.
Genuine Mitsubishi Materials | Box of 10 Inserts
ISO Designation Decoded
Square Shape
Octagonal/Specific Relief
E-Class Tol.
With Hole/Chipbreaker
12mm Size
3.97mm Thick
0.8mm Radius
Low Resistance
Specification Comparison
| Dimension | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SOET12T308PEER-JL | SOET 432 PEER-JL |
| Size ($IC$) | 12.7 mm | 0.500" |
| Thickness ($S$) | 3.97 mm | 0.156" |
| Corner Radius ($RE$) | 0.8 mm | 0.031" |
VP15TF Miracle PVD Grade
The VP15TF grade is Mitsubishi's high-tech PVD coated carbide. Known for its extreme versatility, it combines a micro-grain carbide substrate with a nano-layered Miracle coating. This provides exceptional thermal shock resistance and edge toughness, making it the primary choice for milling stainless steel and difficult alloys under wet or dry conditions.
JL (Low Resistance) Breaker
The JL Chipbreaker is specifically designed for light-to-medium milling where reducing cutting forces is critical. The sharp rake angle prevents the material from "smearing" and minimizes work hardening on the workpiece surface. Ideal for thin-walled parts or long-overhang setups where vibration (chatter) is a concern.
Milling Parameter Recommendations
| Material Group | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 100 - 180 m/min | 0.08 - 0.20 mm/t | 0.5 - 4.0 mm |
| Titanium/Inconel | 30 - 60 m/min | 0.08 - 0.15 mm/t | 0.5 - 3.0 mm |
Need Help With Mitsubishi Inserts?
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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.