Tungaloy TCMT110204-24 T9125 Turning Insert
High-Speed Steel Machining | Premium T9125 CVD Carbide | 0.4mm Radius
What is the best carbide grade for high-speed continuous steel turning?
The Tungaloy TCMT110204-24 T9125 is a high-performance triangular turning insert specifically engineered for ISO P (Steel) applications. Featuring the legendary T9125 CVD coated carbide grade, this insert excels in high-speed continuous cutting and light interrupted machining. The -24 chipbreaker is designed for light-to-medium finishing, offering a perfect balance between sharp cutting action and edge strength. 100% Made in Japan, it provides the reliability needed for precision CNC manufacturing and high-productivity environments.
T9125 CVD Technology
A specialized CVD coating that offers extreme wear resistance and thermal stability. It effectively prevents crater wear and plastic deformation during high-speed steel machining.
-24 Precision Breaker
Optimized for finishing to medium cutting. It provides excellent chip control across a wide range of feed rates, reducing the risk of chip wrapping on your CNC lathe.
Premium Substrate
The tough carbide substrate handles heat dissipation efficiently, ensuring dimensional accuracy even during long production cycles in alloy steel.
Decoding TCMT110204-24 Technical Nomenclature
T
Triangular
C
7° Relief
M
Tolerance
T
Hole/Fix
11
11mm L
02
2.38mm Thk
04
0.4mm Rad.
-24
Chipbreaker
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equivalent |
| Cutting Edge Length (L) |
11.0 mm |
TCMT 21.51 |
| Inscribed Circle (IC) |
6.35 mm |
1/4" |
| Thickness (S) |
2.38 mm |
3/32" |
| Corner Radius (RE) |
0.4 mm |
1/64" |
Recommended Cutting Parameters (T9125)
-
Cutting Speed (Vc): 120 - 280 m/min
-
Feed Rate (f): 0.05 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 2.5 mm
*Pro Insight: For alloy steels, maintaining a consistent Vc is key to maximizing T9125 tool life. Ensure adequate coolant flow to stabilize the cutting temperature during high-speed passes.*
4. Product Applications
- Continuous turning of mild and carbon steels.
- Automotive components requiring high dimensional stability.
- Boring operations with 1/4" IC insert requirements.
- General purpose machining of alloy steels.
5. Tool Compatibility
Fits all standard Tungaloy / ISO tool holders designed for TCMT 1102 size inserts (1/4" Inscribed Circle). This includes most S-STFCR/L boring bars and external shanks.
7. Why Choose CNCHome-Beyond?
Original Tungaloy
100% Genuine Japanese quality
Expert B2B Support
Professional tool path consulting
Fast Shipping
Efficient global delivery
Direct Sourcing
Reliable factory-direct inventory
Global Machinist Reviews
⭐⭐⭐⭐⭐ "Reliable Tool Life" - Hans M., Germany
"T9125 is my standard for steel turning. Excellent resistance to heat during long runs. Very satisfied with the Tungaloy quality."
⭐⭐⭐⭐⭐ "Perfect Fit" - Sarah J., USA
"Exactly as described. Original Tungaloy inserts. Used them for internal boring on mild steel—clean chips and great finish."
⭐⭐⭐⭐ "Good Chip Control" - T. Yamamoto, Japan
"Consistent results. The -24 breaker manages long chips well in our mass production line. Efficient and reliable."
⭐⭐⭐⭐⭐ "Fast Shipping to Singapore" - Wei L., Singapore
"Received original stock very quickly. The performance of these T9125 inserts is exactly what our machine shop needed."
⭐⭐⭐⭐⭐ "High Gloss Surface" - Francesco S., Italy
"Impressive surface quality even at higher feeds. Tungaloy's coating technology is clearly superior to the generic options."
8. FAQ - CNC Professional Support
Q: Can T9125 handle interrupted cutting?
A: Yes, T9125 is a tough CVD grade. While optimized for continuous cutting, it can handle light interrupted cuts in steel with great reliability.
Q: What is the difference between -24 and other chipbreakers?
A: The -24 is a versatile breaker specifically designed for light-to-medium finishing, offering a sharper edge than roughing breakers for better Ra values.
Q: Does this insert fit my boring bar?
A: If your boring bar is designed for TCMT 1102 (1/4" IC) inserts, this is a direct fit. Always verify your tool holder's pocket size before ordering.
Expert Tip: Carbide vs. Cermet
Choose **T9125 Carbide** when you need a balance of toughness and heat resistance for high-speed steel production. If your application requires a mirror-like finish in stable conditions, consider switching to **NS9530 Cermet**. For high-productivity steel turning, **Tungaloy Japan** is the industry standard.
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