Mitsubishi TPGH090202L-FS NX2525 | Left-Hand Cermet Finish Insert
30-Day Free Returns
Free Worldwide Shipping
TPGH090202L-FS NX2525
Mitsubishi Materials | Precision Mirror-Finish Cermet (Left-Hand)
The Mitsubishi TPGH090202L-FS NX2525 is an elite Left-Hand (L) cermet turning insert designed for ultra-fine finishing. Engineered with the titanium-based NX2525 Cermet grade, it offers exceptional resistance to chemical wear and oxidation. The FS chipbreaker is the industry benchmark for super-finishing, making this a critical long-tail precision tool for CNC machining of small-diameter bores in carbon and alloy steels where surface luster is non-negotiable.
High-Speed Cermet | 11° Positive Relief | FS Super-Finish Breaker
Technical Code Breakdown
Triangular Shape
11° Positive Relief
G-Tolerance
Hole/Chip Feature
9mm Edge Length
2.38mm Thick
0.2mm Radius
Left-Hand
Super Finish
Metric (ISO) vs Inch (ANSI) Reference
| Tech Details | ISO (Metric) | ANSI Equivalent |
|---|---|---|
| Part Number | TPGH090202L-FS | TPGH 21.50.5L FS |
| Inscribed Circle | 5.56 mm | 0.219" (7/32") |
| Nose Radius | 0.2 mm | 0.008" |
NX2525 Cermet Grade
The NX2525 Cermet is a specialized titanium-carbonitride composite. It maintains a sharp edge far longer than carbide in high-speed finishing. Its low affinity for steel prevents built-up edge (BUE), which is essential for maintaining dimensional accuracy and achieving a reflective mirror finish.
FS "Super-Finish" Breaker
The FS chipbreaker features an exceptionally sharp rake and high positive geometry. It is specifically designed to control chips at very light depths of cut, ensuring chip evacuation is clean and does not mar the workpiece surface during lathe turning.
Recommended Cutting Parameters
| Workpiece Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Mild / Carbon Steel | 150 - 320 m/min | 0.03 - 0.12 mm/rev | 0.05 - 0.5 mm |
| Alloy Steel (4140) | 120 - 280 m/min | 0.03 - 0.10 mm/rev | 0.05 - 0.4 mm |
REQUIRED LEFT-HAND HOLDERS
This Left-Hand (L) insert requires standard STFPL or STGPL Left-Hand tool holders and boring bars.
Shop Left-Hand Boring Bars →