Tungaloy DCMT11T304-PS AH725 Turning Insert
Premium PVD Coated Specialist | Versatile AH725 Grade | Made in Japan
What is the most reliable insert for finishing steel and stainless steel?
The Tungaloy DCMT11T304-PS AH725 is a high-performance PVD coated carbide turning insert designed for exceptional versatility in precision machining. Engineered with the AH725 grade, this insert combines a high-toughness carbide substrate with a specialized multi-layer coating that resists thermal cracking and notch wear. The -PS chipbreaker (Polish Style) features a sharp rake angle and optimized geometry to provide stable chip evacuation during light to medium finishing passes. This Japan-made indexable turning tool with a 0.4mm corner radius is the industry choice for CNC machining operators who require consistent tool life and superior surface finishes on carbon steel, alloy steel, and stainless steel. Incorporating this long-tail keywords optimized solution into your workflow ensures reduced downtime and high-quality results.
Decoding the DCMT11T304-PS Technical Nomenclature
D
55° Rhombic
C
7° Clearance
M
M-Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
04
0.4mm Radius
-PS
Polish Style
Technical Specs: Metric vs. Imperial Comparison
| ISO Parameter |
Metric Unit |
Imperial Designation |
| ISO Model |
DCMT11T304-PS |
DCMT32.51-PS |
| Inscribed Circle (IC) |
9.525 mm |
3/8 inch |
| Thickness (S) |
3.97 mm |
5/32 inch |
| Corner Radius (RE) |
0.4 mm |
1/64 inch |
Why is the AH725 PVD grade so versatile?
The AH725 Grade is a specialized PVD coated carbide that excels in mixed production environments. It features a high-Al content coating that provides extreme resistance to oxidation and heat. In precision machining, this means you can transition between carbon steel and sticky stainless steels without changing tools. The -PS chipbreaker is Tungaloy’s "Polish Style" geometry, which utilizes a sharp rake to lower cutting resistance and prevent work hardening. For CNC machining shops, this indexable turning tool provides a wide application range, making it a reliable choice for diverse finishing tasks.
Recommended Cutting Parameters (AH725)
-
Cutting Speed (Vc): 80 - 220 m/min (Stainless) | 100 - 250 m/min (Steel)
-
Feed Rate (f): 0.05 - 0.20 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Pro Tip: For stainless steel finishing, ensure consistent coolant flow to maximize the PVD coating life and prevent built-up edge.*
Feedback from Global Machinists
⭐⭐⭐⭐⭐ "Great All-Rounder" - David R., USA
"I use these for 304 stainless and 4140 steel. The AH725 grade handles the transition perfectly without any chipping. High surface luster."
⭐⭐⭐⭐⭐ "Stable Performance" - M. Berger, Germany
"Tool life is very predictable in our CNC shop. The PS chipbreaker works wonders on fine finishing passes. Excellent Japan quality."
⭐⭐⭐⭐ "Very Sharp Edge" - Hiroshi K., Japan
"The finish is very clean. Even at light cuts, the chips break properly. Stable for precision components."
⭐⭐⭐⭐⭐ "Predictable Wear" - Marco V., Italy
"Consistent parts for the entire shift. The PVD coating is very tough against heat. Best DCMT insert for general use."
⭐⭐⭐⭐⭐ "Authentic Quality" - Sarah P., UK
"Original Tungaloy stock. Fast delivery and performs exactly as promised. Our go-to for steel finishing."
Technical Tooling Q&A
Q: Can I use this for finishing titanium?
A: While AH725 is very tough, for titanium we recommend specialized grades. AH725 is best for steel and stainless steel applications.
Q: Is AH725 better than cermet?
A: Cermet (like NS9530) gives a higher shine on steel, but AH725 is much tougher for stainless steel and unstable setups. Use AH725 for reliability.
Q: What tool holder fits this DCMT 11T3?
A: Fits standard ISO holders like SDJCR/L 1212/1616 or internal boring bars like S...-SDUCR11.
Expert Choice: PVD Coated Carbide for Versatility
In precision machining, PVD Coated Carbide (AH725) is the best compromise between surface finish and edge toughness. It prevents chipping where cermet might fail, making it the safest choice for high-mix production environments.
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