Tungaloy TCMT16T308-24 T9115 Turning Insert
High-Speed Steel Machining | Premium T9115 CVD Carbide | 0.8mm Radius
What is the most reliable carbide insert for high-speed steel turning?
The Tungaloy TCMT16T308-24 T9115 is a high-performance triangular turning insert specifically engineered for ISO P (Steel) applications. Featuring the legendary T9115 CVD coated carbide grade, this insert excels in high-speed continuous cutting where thermal stability is paramount. The -24 chipbreaker is designed for finishing to medium cutting, providing a perfect balance between sharp cutting action and edge strength. The 0.8mm corner radius ensures excellent edge durability and high surface quality. 100% Made in Japan, it provides the reliability needed for high-productivity CNC manufacturing.
T9115 CVD Technology
A specialized CVD coating with a thick Al2O3 layer that provides extreme heat resistance. It is optimized for high-speed machining of carbon and alloy steels.
-24 Universal Breaker
Engineered for finishing to medium cutting depths. It provides superior chip control at high feed rates, significantly reducing machine downtime caused by chip wrapping.
0.8mm Edge Strength
The larger 0.8mm radius (08) provides a robust cutting edge capable of withstanding higher cutting forces while maintaining smooth surface finishes.
Decoding TCMT16T308-24 Technical Nomenclature
T
Triangular
C
7° Relief
M
Tolerance
T
Hole/Fix
16
16.5mm L
T3
3.97mm Thk
08
0.8mm Rad.
-24
Chipbreaker
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equivalent |
| Cutting Edge Length (L) |
16.5 mm |
TCMT 32.52 |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
3.97 mm |
5/32" |
| Corner Radius (RE) |
0.8 mm |
1/32" |
Recommended Cutting Parameters (T9115)
-
Cutting Speed (Vc): 140 - 350 m/min
-
Feed Rate (f): 0.10 - 0.35 mm/rev
-
Depth of Cut (ap): 0.5 - 3.0 mm
*Optimization Tip: T9115 is Tungaloy's first choice for steel turning. Higher cutting speeds can be utilized due to the superior heat resistance of the T9100 series coating.*
4. Product Applications
- High-speed finishing and semi-finishing of carbon steel (S45C, etc.).
- Automotive components requiring high dimensional precision.
- Long-reach boring where stable chip breaking is required.
- Machining of alloy steels and tool steels under continuous cutting.
5. Tool Compatibility
Compatible with standard Tungaloy / ISO tool holders designed for TCMT 16T3 size inserts (3/8" Inscribed Circle). Fits various STFCR/L external shanks and boring bars.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japanese stock
B2B Technical Support
Industrial tooling consultants
Global Logistics
Rapid shipping for factories
Factory Direct
Stable inventory and sourcing
Machinist Field Reports
⭐⭐⭐⭐⭐ "Extreme Tool Life" - Bernhard S., Germany
"Switched to T9115 for our 1045 steel production. The tool life is nearly 30% longer than our previous CVD inserts. Highly recommended."
⭐⭐⭐⭐⭐ "Great Service" - Mike R., USA
"Fast delivery of original Tungaloy stock. The TCMT16T308 inserts arrived perfectly packaged. Excellent performance on our CNC lathe."
⭐⭐⭐⭐ "No More Stringy Chips" - Hiroshi T., Japan
"The -24 breaker works wonders on mild steel. We've eliminated chip wrapping issues entirely. Very stable grade."
⭐⭐⭐⭐⭐ "Perfect Surface Finish" - Wei Z., Singapore
"Using these for finishing alloy shafts. The 0.8mm radius holds up great under high heat. Great B2B partner."
⭐⭐⭐⭐⭐ "Stable Performance" - Carlos P., Mexico
"Very consistent quality across multiple batches. Tungaloy Japan quality is hard to beat for high-volume manufacturing."
8. FAQ - Technical Assistance
Q: Is T9115 better than T9125 for steel?
A: T9115 is harder and more wear-resistant, making it better for high-speed continuous cutting. T9125 offers slightly more toughness for light interruptions.
Q: What is the benefit of the -24 chipbreaker?
A: It is a versatile breaker that excels in finishing to light-medium cutting, ensuring chips break consistently to prevent workpiece damage.
Q: Can I use this for stainless steel?
A: It is primarily designed for ISO P (Steel). For stainless steel (ISO M), we recommend using Tungaloy's AH7000 series or specialized stainless grades.
Industrial Tip: CVD vs. PVD Coating
The **T9115 CVD coating** provides a thick thermal barrier, perfect for high-speed steel turning where heat is a factor. For smaller parts or low-speed precision work, a **PVD coated grade** like AH725 might be preferred. For high-volume steel production, **Tungaloy Japan** is the professional choice.
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