Tungaloy SCMT09T304-PS T9125 Insert
General Purpose Steel Machining | -PS Precision Breaker | T9125 CVD Grade
What is the most reliable insert for general steel finishing?
The Tungaloy SCMT09T304-PS T9125 is a high-versatility square carbide turning insert designed for the general-purpose machining of ISO P (Steel) materials. While the T9115 is built for extreme speeds, the T9125 CVD grade provides a superior balance of wear resistance and fracture toughness, making it the ideal choice for unstable setups or light interrupted cuts. The -PS chipbreaker offers a sharp, positive geometry tailored for finishing to light-medium cutting, ensuring excellent surface gloss and stable chip evacuation. Made in Japan, this insert is a staple for CNC workshops requiring consistent results across various steel grades.
Balanced T9125 Grade
Features a robust substrate with Tungaloy's "PremiumTec" surface treatment, providing incredible resistance to chipping and crater wear in both continuous and light-interrupted cuts.
-PS Precision Breaker
The positive rake design reduces cutting forces and heat generation, which is crucial for maintaining dimensional accuracy and prolonging tool life in fine finishing.
Superior Surface Finish
The 0.4mm corner radius is specifically designed for intricate work and high-detail finishing, minimizing vibration and producing a high-gloss surface.
Decoding SCMT09T304-PS Technical Nomenclature
S
Square
C
7° Relief
M
Tolerance
T
Hole/Fix
09
9.52mm Size
T3
3.97mm Thick
04
0.4mm Rad.
PS
Breaker
3. Technical Specifications: Metric vs. Imperial
| Attribute |
Metric (ISO) |
Imperial Equiv. |
| Inscribed Circle (IC) |
9.525 mm |
3/8 inch (SCMT 32.51) |
| Thickness (S) |
3.97 mm |
5/32 inch |
| Corner Radius (RE) |
0.4 mm |
1/64 inch |
| Standard Hole |
4.4 mm |
0.173 inch |
Recommended Cutting Parameters (T9125 Versatile Grade)
-
Cutting Speed (Vc): 120 - 300 m/min (Highly stable across various steels)
-
Feed Rate (f): 0.05 - 0.20 mm/rev (Precision finishing range)
-
Depth of Cut (Ap): 0.2 - 1.5 mm
*Note: T9125 is the better choice over T9115 when facing vibration or unstable material clamping.*
4. Product Applications
- Outer diameter precision turning of carbon and alloy steels.
- Machining of mechanical components with high surface requirements.
- Excellent for small CNC lathes where maximum speed is limited.
- General purpose finishing where setup stability may vary.
5. Tool Compatibility
Standard fit for SSDCN, SSKCR/L, and SSGCR/L turning tool holders designed for 9.52mm square inserts (Size 09T3). Engineered for universal spindle compatibility.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japan Stock
Industrial Supply
Professional Tooling Authority
Expert Guidance
Technical Support for Machinists
Global Delivery
Express Shipping Worldwide
What Pros are Saying
⭐⭐⭐⭐⭐ "Reliable Daily Driver" - Steve R., UK
"T9125 is my go-to for general steel. It’s more forgiving than T9115 if the setup isn't perfectly rigid. The finish is still excellent."
⭐⭐⭐⭐⭐ "Fantastic Finishes" - B. Mueller, Germany
"The -PS chipbreaker works perfectly on 1018 and 4140 steel. Beautiful glossy finish and very predictable wear."
⭐⭐⭐⭐ "Great for Job Shops" - H. Tanaka, Japan
"Versatility is key for us. This insert handles a wide range of speeds. Tungaloy quality as always."
⭐⭐⭐⭐⭐ "Original Packaging" - G. Moretti, Italy
"Genuine inserts. Shipping was faster than expected. We use these for finishing small diameter alloy pins."
⭐⭐⭐⭐⭐ "High Accuracy" - L. Koh, Singapore
"Dimensions stay incredibly stable across the batch. The sharp edge makes a huge difference in small detail work."
8. FAQ - Support Center
Q: When should I choose T9125 over T9115?
A: Choose T9125 when your cutting conditions aren't perfectly stable, or if you are dealing with light interruptions. T9115 is strictly for high-speed continuous cutting.
Q: Is this insert suitable for finishing only?
A: The -PS breaker is optimized for finishing to light cutting. For heavy roughing, we recommend the -TM or -TH chipbreakers.
Q: Does this work for stainless steel?
A: T9125 is a Steel grade (ISO P). For Stainless Steel (ISO M), the AH630 or AH645 grades are far more effective.
Expert Insight: The Versatility of T9125
While many chase pure speed, the T9125 grade is the unsung hero of the machine shop. It is designed to handle the thermal shocks and varied pressures of everyday steel turning. When paired with the -PS breaker, the SCMT09T304 geometry provides unmatched precision for parts requiring tight tolerances and mirror finishes. Trust Japanese engineering for your next batch.
© Technical Data by cnchome-beyond.com - Industrial Authority
