Mitsubishi CNMG120412-MS VP15TF Carbide Insert for Stainless Steel (10pcs)
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CNMG120412-MS VP15TF
Heavy Finishing Master | PVD VP15TF Miracle Grade | 1.2mm Reinforced Edge
The Power of Miracle PVD Coating
VP15TF Miracle Grade (Advanced PVD): The VP15TF grade features an ultra-fine micro-grain substrate coated with Mitsubishi's proprietary Miracle (Al-Ti-N) PVD layer. This coating provides a unique combination of extreme surface hardness and excellent oxidation resistance. Because it is PVD-applied, it maintains a sharper cutting edge than CVD grades, which is essential for "shearing" gummy materials like 304/316 stainless steel instead of "tearing" them.
MS Chipbreaker (Stainless Logic): The MS geometry is specifically engineered for difficult-to-cut materials. It features a high rake angle and a specialized chip pocket that prevents the long, stringy chips common in austenitic stainless. It minimizes cutting resistance, which reduces heat and prevents work-hardening of the workpiece surface.
1.2mm (3/64") Radius (Edge Security): The 1.2mm corner radius provides superior edge strength. It allows for higher feed rates and provides a much stronger "tip" that resists chipping during interrupted cuts or when machining through surface scale, while still delivering an excellent industrial finish.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CNMG120412-MS | 12.7 mm | 4.76 mm | 1.20 mm |
| Imperial | CNMG433-MS | 1/2" | 3/16" | 0.0472" (3/64") |
Recommended Cutting Parameters
*The reinforced 1.2mm radius allows for aggressive feed rates. Always use flood coolant in stainless steel applications.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 170 m/min | 0.20 - 0.45 mm/r | 1.00 - 4.00 mm |
| Titanium / Inconel | 25 - 55 m/min | 0.15 - 0.35 mm/r | 0.50 - 3.00 mm |
Compatible Tool Holders
Maximum rigidity is recommended for 1.2mm radius inserts. Fits DCLNR/L 12 series holders:
Shop DCLNR 12 HoldersPro-Tip: Why use 12-radius MS?
Radius Strength: In heavy roughing of stainless, heat is the enemy. The 1.2mm radius dissipates heat over a wider edge than the 0.8mm, prolonging tool life.
VP15TF vs. US735: Use VP15TF for general production and higher speeds. Switch to US735 only if you are experiencing extreme impact or heavy interrupted cuts where toughness is the only priority.
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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.