Tungaloy DCMT11T302-PS AH725 PVD Coated Carbide Turning Insert

$71.26 USD

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Description

Tungaloy DCMT11T302-PS AH725 Turning Insert

High-Precision PVD Specialist | Premium AH725 Grade | Made in Japan

What is the best insert for high-precision stainless steel finishing?

The Tungaloy DCMT11T302-PS AH725 is a premium PVD coated carbide turning insert engineered for ultra-fine finishing operations. By utilizing the advanced AH725 grade, this insert combines a tough carbide substrate with a high-aluminum content PVD coating, offering incredible resistance to thermal cracking and notch wear. The sharp 0.2mm radius is specifically designed for precision machining where tight tolerances and small internal diameters are required. Featuring the -PS chipbreaker (Polish Style), it maintains stable chip evacuation even at extremely light depths of cut, making it the ultimate CNC machining choice for carbon steel, alloy steel, and stainless steel. This Japan-made indexable turning tool helps eliminate secondary finishing processes, significantly boosting your tool life and production efficiency.

Decoding the DCMT11T302-PS Technical Nomenclature

D
55° Rhombic
C
7° Clearance
M
M-Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
02
0.2mm Radius
-PS
Polish Style

Technical Specs: Metric vs. Imperial Comparison

ISO Parameter Metric Unit Imperial Designation
ISO Model DCMT11T302-PS DCMT32.50.5-PS
Inscribed Circle (IC) 9.525 mm 3/8 inch
Thickness (S) 3.97 mm 5/32 inch
Corner Radius (RE) 0.2 mm 0.008 inch

How does the AH725 grade handle stainless steel?

The AH725 Grade is Tungaloy's answer to the challenges of machining sticky and heat-sensitive materials. Unlike cermet, which can be brittle, AH725 PVD coated carbide has the edge toughness to handle light interruptions and the varying hardness of stainless alloys. The -PS chipbreaker is designed with a sharp cutting edge that reduces cutting force and heat generation, which is essential for maintaining accuracy in precision machining. For long-tail keywords such as "high-precision CNC finishing," this insert is the gold standard for achieving high surface luster without sacrificing tool longevity.

Recommended Cutting Parameters (AH725)

  • Cutting Speed (Vc): 80 - 200 m/min (Stainless) | 100 - 250 m/min (Steel)
  • Feed Rate (f): 0.03 - 0.12 mm/rev
  • Depth of Cut (ap): 0.1 - 1.2 mm

*Optimization Tip: Use high-pressure coolant if possible to assist with chip removal when using the 0.2mm radius.*

Verified Customer Feedback

⭐⭐⭐⭐⭐ "Incredible Precision" - James W., USA
"The 0.2mm radius is perfect for my small medical parts. Finish on 316 stainless is flawless. Tungaloy Japan quality never fails."

⭐⭐⭐⭐⭐ "Tough Coating" - Lars H., Germany
"AH725 is my go-to for mixed production. It handles stainless just as well as carbon steel. Tool life is very predictable."

⭐⭐⭐⭐ "Great Chip Control" - Sato K., Japan
"The PS breaker is excellent for light finishing. Even at very low feeds, the chips break well. Very satisfied."

⭐⭐⭐⭐⭐ "Superior Finish" - Alessandro R., Italy
"Achieved a beautiful Ra finish on alloy steel. The PVD coating resists heat much better than my previous inserts."

⭐⭐⭐⭐⭐ "Reliable and Fast" - Sarah B., UK
"Original Tungaloy stock. Fast delivery and the performance in our CNC shop has been top-tier. Highly recommended."

Technical Tooling Q&A

Q: Can I use this for roughing stainless steel?

A: No. The DCMT11T302-PS is a dedicated finishing insert. The 0.2mm radius is too delicate for roughing. For heavier cuts, use a 0.8mm radius with a roughing geometry.

Q: Is AH725 suitable for dry machining?

A: While it can handle dry cuts in steel, we strongly recommend coolant for stainless steel to prevent work hardening and to maximize the life of the PVD coating.

Q: Which tool holders fit this DCMT 11T3?

A: This fits all standard ISO holders like SDJCR/L 1212 or 1616, and internal boring bars like S...-SDUCR11.

Expert Tip: PVD Carbide for Stainless Steel

For precision machining in stainless alloys, PVD Coated Carbide (AH725) is superior to cermet because it offers the high fracture toughness needed to withstand the cutting forces of tougher materials while maintaining a sharp edge.

© Technical Content by cnchome-beyond.com - Japan Tooling Excellence

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.