Tungaloy SPMT090308-24 T9125 Milling Insert
High-Performance Steel Milling | Premium T9125 CVD Grade | 0.8mm Corner Radius
What is the most durable carbide insert for high-speed milling of steel?
The Tungaloy SPMT090308-24 T9125 is a high-productivity carbide milling insert designed for ISO P (Steel) and ISO K (Cast Iron) machining. Utilizing the world-renowned T9125 CVD coating, this insert provides an exceptional balance of wear resistance and toughness. The 0.8mm corner radius ensures edge strength during heavy face or shoulder milling, while the -24 chipbreaker facilitates smooth chip evacuation at high feed rates. 100% Made in Japan, it is the professional solution for shops requiring stable, high-volume production with minimal tool changes.
Premium T9125 Grade
Specifically engineered for steel, this CVD-coated grade features a thick Al2O3 layer for incredible heat resistance and protection against plastic deformation at high RPMs.
Advanced -24 Geometry
The -24 chipbreaker is designed for medium-to-light milling, providing low cutting resistance and excellent chip control across various depths of cut (ap).
0.8mm Radius Strength
The 0.8mm radius (08) offers significantly higher edge security compared to smaller radii, making it the standard choice for interrupted cuts and high-feed milling.
Decoding SPMT090308-24 Technical Nomenclature
S
Square
P
11° Relief
M
Tolerance
T
Hole/Fix
09
9.525mm IC
03
3.18mm Thk
08
0.8mm Rad.
-24
Milling
3. Technical Specifications: Metric vs. Imperial
| Parameter |
Metric (ISO) |
Imperial Equivalent |
| Inscribed Circle (IC) |
9.525 mm |
3/8" (SPMT 32.52) |
| Thickness (S) |
3.18 mm |
1/8" |
| Corner Radius (RE) |
0.8 mm |
1/32" |
| Material Grade |
T9125 (CVD Carbide) |
Steel/General Grade |
Recommended Cutting Parameters (T9125)
-
Cutting Speed (Vc): 160 - 280 m/min
-
Feed per Tooth (fz): 0.12 - 0.28 mm/t
-
Depth of Cut (ap): 1.0 - 4.5 mm
*Note: Ensure machine rigidity. For interrupted milling, lower cutting speed slightly to maintain edge security.*
4. Product Applications
- High-speed shoulder and face milling of carbon and alloy steels.
- Efficient material removal in mold and die manufacturing.
- B2B heavy manufacturing in automotive and aerospace sectors.
- Interrupted machining of structural components.
5. Tool Compatibility
Seamlessly fits all standard Tungaloy Tung-Tri and Tung-Turn milling bodies designed for SPMT 0903 inserts. Compatible with ISO standard indexable milling cutters.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japanese Stock
Industrial Support
Direct B2B Expert Consulting
Global Logistics
Efficient Shipping for Factories
Proven Supply
Stable Inventory for Production
Global Machinist Reviews
⭐⭐⭐⭐⭐ "Predictable Tool Life" - Gregor S., Germany
"T9125 is the gold standard for our steel milling jobs. Very predictable wear pattern, which is crucial for our automated lights-out shifts."
⭐⭐⭐⭐⭐ "Robust 0.8mm Edge" - David L., USA
"We prefer the 0.8mm radius over the 0.4mm for our roughing passes. Much stronger. These Tungaloy inserts are genuine and work perfectly."
⭐⭐⭐⭐ "Great Performance" - Y. Tanaka, Japan
"Consistent quality from Tungaloy. The -24 breaker manages chips efficiently in alloy steel. Very reliable."
⭐⭐⭐⭐⭐ "Trusted B2B Partner" - Lim T., Singapore
"Fast shipping from CNCHome-Beyond. Our factory uses these SPMT090308 inserts daily. Excellent price-to-performance ratio."
⭐⭐⭐⭐⭐ "High Output" - Carlos V., Spain
"We've seen a 15% increase in metal removal rates compared to our old brand. No vibrations, very stable."
8. FAQ - Milling Technical Support
Q: Is T9125 better than cermet grades for steel?
A: T9125 is much tougher and better for high-speed roughing and interrupted cuts. Cermet (like NS9530) is better for light finishing passes to get a mirror finish.
Q: Does this fit standard 3/8" IC milling cutters?
A: Yes. SPMT090308 is the metric equivalent to SPMT 32.52, which features a 9.525mm (3/8") Inscribed Circle.
Q: Why use a 0.8mm radius?
A: The 0.8mm radius provides a stronger cutting edge and allows for higher feed rates compared to the 0.4mm radius, making it ideal for stability.
Expert Tip: Carbide Milling Efficiency
The **T9125 Carbide** grade is engineered to thrive where heat is high and cuts are long. Its CVD layer acts as a thermal barrier, protecting the substrate and allowing you to push the RPMs. For the best tool life, prioritize air cooling or high-pressure coolant. Trust **Tungaloy Japan** for top-tier industrial performance.
© Technical Data by cnchome-beyond.com - CNC Tool Authority
