Tungaloy DCMT11T308-PS T9115 Turning Insert
High-Speed Steel Finishing Expert | Premium T9115 CVD | Made in Japan
What is the best insert for stable high-speed steel finishing?
The Tungaloy DCMT11T308-PS T9115 is a high-performance CVD coated carbide turning insert specifically engineered for high-efficiency steel machining. Featuring the advanced T9115 grade, this insert utilizes a thick Al2O3 layer and Tungaloy's "PremiumTec" surface technology to provide extreme resistance to crater wear and heat during continuous cutting. The 0.8mm corner radius offers superior edge strength and allows for higher feed rates compared to smaller radii, ensuring stable precision machining. The -PS chipbreaker (Polish Style) is designed with a sharp rake angle to reduce cutting resistance and ensure excellent chip control at light to medium finishing depths. This Japan-made indexable turning tool is the ultimate CNC machining solution for reducing cycle times and maximizing tool life in carbon and alloy steel production. Using this long-tail keywords optimized insert guarantees professional results in every pass.
Decoding the DCMT11T308-PS Technical Nomenclature
D
55° Rhombic
C
7° Clearance
M
M-Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
08
0.8mm Radius
-PS
Polish Style
Technical Specs: Metric vs. Imperial Comparison
| ISO Parameter |
Metric Unit |
Imperial Equiv. |
| ISO Model Name |
DCMT11T308-PS |
DCMT32.52-PS |
| Inscribed Circle (IC) |
9.525 mm |
3/8 inch |
| Thickness (S) |
3.97 mm |
5/32 inch |
| Corner Radius (RE) |
0.8 mm |
1/32 inch |
How does the T9115 CVD coating optimize steel turning?
The T9115 Grade is Tungaloy's premium solution for steel finishing. Its CVD (Chemical Vapor Deposition) coating is designed with high adhesion technology to prevent chipping under high-speed conditions. In precision machining, the 0.8mm radius provides the necessary bulk to handle heat while the -PS chipbreaker manages the chip flow to prevent scratching the workpiece. For CNC machining shops, this indexable turning tool offers massive throughput gains by allowing for higher Vc without sacrificing surface integrity. It is the gold standard for high-productivity steel finishing.
Recommended Cutting Parameters (T9115)
-
Cutting Speed (Vc): 150 - 350 m/min (Standard Steels)
-
Feed Rate (f): 0.08 - 0.25 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Pro Tip: For best results, use high cutting speeds. CVD coatings thrive on heat to reduce friction and improve the "peeling" action.*
Feedback from Global Machinists
⭐⭐⭐⭐⭐ "Increased Efficiency" - David B., USA
"We run 1045 steel all day. Swapped to T9115 and bumped the speed to 300 m/min. Tool life is great and the 0.8mm radius is very stable."
⭐⭐⭐⭐⭐ "Premium Japan Quality" - M. Wagner, Germany
"Consistent performance across thousands of parts. The -PS chipbreaker breaks chips beautifully even at high speeds. Highly recommended."
⭐⭐⭐⭐ "Great for Heavy Finishing" - Hiroshi S., Japan
"The 0.8mm radius allows for a bit more aggressive feed while keeping the finish smooth. Very reliable for our CNC production."
⭐⭐⭐⭐⭐ "Heat Barrier is Real" - Antonio M., Italy
"CVD coating handles the high-speed heat much better than my previous PVD inserts. No more stopping for tool changes mid-batch."
⭐⭐⭐⭐⭐ "Genuine Tungaloy" - Sarah J., UK
"Authentic inserts. They perform exactly as the technical manual states. Excellent value for any professional shop."
Technical Tooling Q&A
Q: Can I use this for stainless steel?
A: T9115 is optimized for steel. For stainless, PVD grades like AH725 are better suited due to their ability to resist the sticky nature of the material.
Q: Is CVD better than cermet for finishing?
A: Cermet gives a higher "mirror" shine, but CVD (T9115) is much stronger and can handle higher speeds and heavier feed rates more reliably.
Q: Which tool holder fits the DCMT 11T3 size?
A: This insert fits standard ISO holders like SDJCR/L 1212/1616 or internal boring bars like S...-SDUCR11.
Expert Choice: CVD Coated Carbide for Steel
In precision machining, CVD Coated Carbide (T9115) is the best choice for high-volume steel production. It provides the thermal stability needed for high SFM while the PS chipbreaker keeps the workplace clean and safe.
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