Mitsubishi TPGH090202L-FS NX2525 | Left-Hand Cermet Finish Insert
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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 →
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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.