Tungaloy CCMT09T302-PS T9125 Turning Insert
Precision Steel Machining | All-Rounder T9125 CVD Grade | PS Finishing Geometry
What are the advantages of using CCMT09T302-PS T9125 for steel?
The Tungaloy CCMT09T302-PS T9125 is a premium CVD coated carbide turning insert designed for maximum versatility in steel machining. Featuring the high-toughness T9125 grade, this insert excels in both continuous and light interrupted cuts. The PS-style chipbreaker is specifically ground for finishing, ensuring excellent chip control at light depths of cut. With its sharp 0.2mm corner radius, it is the ideal indexable turning tool for precision machining where ultra-sharp corners and superior surface finishes are required. Engineered and manufactured in Japan, it provides consistent tool life for modern CNC machining demands.
How do I interpret the CCMT09T302-PS coding system?
C
80° Rhombic
C
7° Clearance
M
M Tolerance
T
Hole Type
09
9.5mm Edge
T3
3.97mm Thick
02
0.2mm Radius
PS
Chipbreaker
Metric vs. Imperial: Finding the right size for your tool holder
| Measurement Type |
Model Designation |
Edge Length (IC) |
| Metric Model |
CCMT09T302-PS |
9.525 mm |
| Imperial Model |
CCMT32.50.5-PS |
3/8 inch |
| Corner Radius |
0.2 mm |
0.008 inch |
How does the T9125 grade improve machining stability?
The T9125 grade is the premier versatile CVD grade for steel. It features a high-toughness substrate paired with a multi-layered alumina coating. This long-tail keywords industry favorite is designed to handle fluctuations in cutting conditions, providing exceptional resistance to chipping. For precision machining where process reliability is key, T9125 ensures a long and predictable tool life.
What is the benefit of the PS chipbreaker in finishing?
The PS Chipbreaker geometry is a ground-profile design specifically for finishing applications. Its sharp edge minimizes cutting forces, which is essential for avoiding deflection in thin-walled workpieces and ensuring an ultra-smooth surface. It is highly effective at managing chips in light turning, keeping your CNC machining area clear of stringy debris.
What are the recommended feeds and speeds for this insert?
Optimized for P (Steel) Machining:
-
Cutting Speed (Vc): 120 - 320 m/min (390 - 1050 SFM)
-
Feed Rate (f): 0.03 - 0.12 mm/rev
-
Depth of Cut (ap): 0.1 - 1.0 mm
*Pro Tip: For 0.2mm radius inserts, use light feed rates to achieve the best surface Ra values.*
What do global machinists say about Tungaloy T9125?
⭐⭐⭐⭐⭐ "Incredible surface finish" - Matthias G., Germany
"The 0.2mm radius on this CCMT09T3 insert is perfect for my small parts. The T9125 grade gives me consistent results every time."
⭐⭐⭐⭐⭐ "Authentic Japanese Quality" - Hiroshi Y., Japan
"T9125 is very versatile. Even when I have light vibration in the boring bar, these inserts hold up without chipping."
⭐⭐⭐⭐ "Very Stable Finishing" - James W., USA
"The PS chipbreaker is my favorite for finishing 4140 steel. Chips break nicely and the surface looks like a mirror."
⭐⭐⭐⭐⭐ "Long Lasting" - Antonio P., Italy
"We switched to Tungaloy for our CNC lathes and the tool life increase was noticeable immediately. Great product."
⭐⭐⭐⭐⭐ "Reliable and Fast" - Sarah B., UK
"Genuine Tungaloy inserts. Fits my SCLCR09 holders perfectly and delivery was quick. Excellent finishing performance."
Machinist Q&A
Q: Can I use T9125 for machining stainless steel?
A: T9125 is primarily optimized for Steel (P). For dedicated Stainless Steel (M) turning, Tungaloy's T6120 or AH725 grades are generally recommended for better chip control.
Q: Which tool holder is compatible with this insert?
A: This insert fits any standard **SCLCR09** or **SCLCR3/8** external turning holder or boring bar designed for size 09 (3/8" IC) inserts.
Q: Why choose CVD over PVD for steel turning?
A: CVD coatings are thicker and more heat-resistant, making them superior for high-speed continuous turning where thermal protection is critical for the carbide substrate.
Expert Machining Tip: Choosing Your Radius
For finishing operations requiring the highest surface quality and sharpest corners, the 0.2mm radius (02) is king. However, ensure your CNC machining setup is stable, as smaller radii are more sensitive to vibration than larger ones like 0.4mm or 0.8mm.
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