Mitsubishi TPGH110304L-FS VP15TF | Left-Hand PVD Finishing Insert
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TPGH110304L-FS VP15TF
Mitsubishi Materials | PVD Coated "Miracles" Grade (Left-Hand)
Precision Finishing Overview
The Mitsubishi TPGH110304L-FS VP15TF is a premium Left-Hand (L) PVD coated carbide insert engineered for stable finishing. Utilizing the legendary VP15TF Miracles grade, it offers a tough micro-grain substrate that excels in heat resistance. The FS chipbreaker is specialized for super-finishing at light depths of cut, making it a critical long-tail precision tool for CNC machining of stainless steel, carbon steel, and alloyed materials where edge integrity is vital.
AlTiN PVD Coated Carbide | 11° Positive Relief | FS Finish Breaker
Technical Code Identification
Triangular Shape
11° Positive Relief
G-Class Tolerance
Cylindrical Hole
11mm Edge Length
3.18mm Thick
0.4mm Radius
Left-Hand
Finish Breaker
ISO (Metric) vs ANSI (Inch) Reference
| Specification | ISO Model (Metric) | ANSI Model (Inch) |
|---|---|---|
| Part Number | TPGH110304L-FS | TPGH 221L FS |
| Inscribed Circle (IC) | 6.35 mm | 0.250" (1/4") |
| Nose Radius | 0.4 mm | 0.016" (1/64") |
VP15TF Miracles Coating
The VP15TF grade features a micro-grain carbide substrate with an AlTiN-based Miracle coating. This grade is optimized for stable machining by reducing chemical wear and thermal cracking. It is highly effective for lathe turning in stainless steel where built-up edge (BUE) often ruins surface quality.
FS "Super-Finish" Breaker
The FS chipbreaker provides a high-positive rake angle that significantly lowers cutting resistance. This allows for superior chip evacuation even at light depths of cut, ensuring that your CNC boring process results in a flawless, scratch-free surface finish.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (300/400) | 70 - 160 m/min | 0.05 - 0.12 mm/rev | 0.1 - 0.5 mm |
| Carbon & Alloy Steel | 90 - 200 m/min | 0.05 - 0.15 mm/rev | 0.1 - 0.8 mm |
REQUIRED LEFT-HAND HOLDERS
Designed for Left-Hand (L) tool paths. Optimized for use with STFPL 11 or STGPL 11 boring bars and tool holders.
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