Mitsubishi SNMG120412-MA VP15TF Turning Insert | Miracle PVD
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SNMG120412-MA VP15TF
Mitsubishi Materials | Reinforced Edge with Universal Miracle PVD Coating
The Mitsubishi SNMG120412-MA VP15TF is a heavy-duty, versatile indexable carbide insert engineered for universal turning applications. Utilizing the advanced VP15TF Miracle PVD coating, this insert provides exceptional wear resistance across carbon steel, stainless steel, and cast iron. With a reinforced 1.2mm corner radius, it is specifically designed for medium-roughing where edge strength and high feed rates are critical for reducing cycle times on a CNC lathe.
Condition: 100% Original Mitsubishi | Pack of 10 Inserts
ISO Designation Decoded
Square 90°
0° Relief
M-Class Tol.
Double Sided
12.7mm Size
4.76mm Thick
1.2mm Radius
Medium-Rough
Technical Specifications
| Dimension | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Name | SNMG120412-MA | SNMG 433-MA |
| Inscribed Circle ($IC$) | 12.7 mm | 0.500" (1/2") |
| Thickness ($S$) | 4.76 mm | 0.187" (3/16") |
| Corner Radius ($RE$) | 1.2 mm | 0.047" (3/64") |
VP15TF Miracle PVD Coating
The VP15TF grade is Mitsubishi's legendary universal PVD coating. Designed for a wide application range, it features a nano-layered structure that offers high hardness and superior heat resistance. This prevents built-up edge (BUE) on stainless steel and maintains a sharp cutting edge during long production runs in carbon and alloy steels.
MA Medium-Rough Chipbreaker
The MA chipbreaker is a double-sided geometry optimized for medium roughing. The reinforced land profile can handle deeper depths of cut ($a_p$) and higher feed rates compared to standard finishing geometries. It is the ideal solution for chip control in stringy materials, ensuring chips are broken efficiently to prevent machine downtime.
Recommended Cutting Parameters
Starting Values for Universal Success (VP15TF)
| Material Group | Cutting Speed ($v_c$) | Feed Rate ($f$) | Depth of Cut ($a_p$) |
|---|---|---|---|
| Steel (Carbon/Alloy) | 100 - 250 m/min | 0.20 - 0.55 mm/rev | 1.5 - 4.5 mm |
| Stainless Steel (304/316) | 80 - 180 m/min | 0.20 - 0.50 mm/rev | 1.5 - 4.0 mm |
HOLDER COMPATIBILITY
Pairs with standard heavy-duty PSSNR/L, DSBNR/L, or MSKNR/L 90° turning tool holders.
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