Mitsubishi TPGH110304L-FS AP25N | Left-Hand Cermet Turning Insert
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TPGH110304L-FS AP25N
Mitsubishi Materials | High-Speed Steel Finishing Cermet (Left-Hand)
Super-Finish Steel Machining
The Mitsubishi TPGH110304L-FS AP25N is a precision Left-Hand (L) Cermet turning insert designed for high-speed steel finishing. The AP25N Cermet grade utilizes a TiCN-based substrate that provides superior chemical resistance and prevents "Built-Up Edge" (BUE). Paired with the FS chipbreaker, it is the premier choice for precision CNC boring and turning where dimensional accuracy and a glossy, high-quality surface finish are required.
Advanced AP25N Cermet | 11° Positive Relief | FS Super-Finish Breaker
Technical Code Identification
Triangular Shape
11° Positive Relief
G-Tolerance Class
Cylindrical Hole
11mm Edge Length
3.18mm Thick
0.4mm Radius
Left-Hand
Finish Breaker
ISO (Metric) vs ANSI (Inch) Comparison
| Technical Spec | 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") |
AP25N Cermet Technology
AP25N is an advanced TiCN-based Cermet. Because Cermet has a much lower affinity for steel than carbide, it resists chemical wear and heat build-up. This long-tail precision insert is ideal for maintaining tight tolerances and achieving mirror finishes that often eliminate the need for grinding.
FS "Super-Finish" Breaker
The FS chipbreaker features a specialized ultra-high positive rake angle. Optimized for low feed rates and shallow depths of cut, it forces chips to curl tightly and break away, ensuring the finished surface is not marred by chip scratching.
Recommended Cutting Parameters
| Material | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon Steel (1045) | 150 - 350 m/min | 0.05 - 0.15 mm/rev | 0.1 - 1.0 mm |
| Alloy Steel (4140) | 120 - 300 m/min | 0.05 - 0.12 mm/rev | 0.1 - 0.8 mm |
REQUIRED LEFT-HAND HOLDERS
Designed for Left-Hand (L) tool paths. Optimized for use with standard STFPL 11 or STGPL 11 tool holders and boring bars.
Shop Boring Bars →
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.