Tungaloy DCGT11T304FN-JS SH725 Precision Finishing Turning Insert

$89.66 USD

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Description

Tungaloy DCGT11T304FN-JS SH725 Turning Insert

Precision Finishing Master | Ultra-Hard SH725 PVD | Made in Japan

What is the most reliable carbide insert for finishing stainless steel parts?

The Tungaloy DCGT11T304FN-JS SH725 is a high-performance precision machining tool specifically engineered for high-accuracy finishing operations. Utilizing the industry-leading SH725 PVD grade, this insert features a high-toughness carbide substrate paired with a smooth, wear-resistant coating that excels in CNC machining of steel, stainless steel, and superalloys. The -JS chipbreaker provides an ultra-sharp cutting edge with a positive rake angle, which is critical for minimizing cutting resistance and achieving mirror-like surface Ra values. This Japan-made indexable turning tool with a 0.4mm corner radius offers the perfect balance between edge strength and surface smoothness. By integrating this long-tail keywords optimized insert into your production line, you ensure exceptional tool life and repeatable dimensional accuracy in every pass.

Decoding the DCGT11T304FN-JS Technical Nomenclature

D
55° Rhombic
C
7° Clearance
G
G Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
04
0.4mm Radius
FN-JS
Finish JS

Technical Specs: Metric vs. Imperial Comparison

Feature Detail Metric Designation Imperial Equiv.
Product Model DCGT11T304FN-JS DCGT32.51FN-JS
Inscribed Circle (IC) 9.525 mm 3/8 inch
Corner Radius (RE) 0.4 mm 0.016 inch

How does the SH725 grade and JS chipbreaker improve surface Ra?

The SH725 Grade is a specialized PVD coating known for its high adhesion resistance and ability to maintain a sharp edge under heat. In precision machining, the -JS chipbreaker features a ground-periphery and highly positive rake angle. This configuration curls and breaks chips effectively at low feed rates, preventing workpiece damage from long-stringy chips. For CNC machining of stainless steel or alloy steel parts, the 0.4mm radius on the DCGT11T304FN-JS provides better edge longevity than smaller variants while still allowing for detailed work. This indexable turning tool excels in light-duty finishing, ensuring consistent Ra values shift after shift.

Recommended Cutting Parameters for SH725

  • Cutting Speed (Vc): 70 - 180 m/min (Material dependent)
  • Feed Rate (f): 0.05 - 0.15 mm/rev
  • Depth of Cut (ap): 0.20 - 1.20 mm

*Pro Tip: For medical-grade components, use high-pressure coolant to maximize the tool life of the SH725 grade.*

Feedback from Global Precision Workshops

⭐⭐⭐⭐⭐ "Best for Finish Passes" - Mark T., USA
"The 11T304 is the perfect size for our Swiss-turn lathes. SH725 holds up great on 316 stainless. Surface finish is mirror-like."

⭐⭐⭐⭐⭐ "Incredible Sharpness" - Hans B., Germany
"Tungaloy JS breaker is extremely sharp. Very low cutting forces. It helped solve our vibration issues on slender shafts."

⭐⭐⭐⭐ "Very Stable" - Hiroshi Y., Japan
"Reliable dimensional stability. The G-tolerance is very tight, which is what we need for high-precision components."

⭐⭐⭐⭐⭐ "Great Chip Control" - Luca V., Italy
"No bird-nesting on our alloy steel parts. The chips are small and manageable. Highly recommend SH725 for stainless."

⭐⭐⭐⭐⭐ "Original Quality" - Liam G., UK
"Genuine Tungaloy Japan inserts. Performance is exactly per the technical sheet. Fast shipping and excellent results."

Technical Tooling Q&A

Q: Can I use this for roughing?

A: No. The DCGT11T304 is a precision finishing insert. The sharp edge and 0.4mm radius will fail under heavy material removal. Use for finishing only.

Q: Why choose the JS chipbreaker for finishing?

A: The JS breaker is specifically designed for small depths of cut, providing better chip breaking and a smoother surface than general-purpose breakers.

Q: What tool holder is compatible?

A: This insert fits any standard ISO holder designed for DCGT 11T3 inserts, such as the SDJCR/L series or SDNCN holders.

Expert Insight: PVD vs. CVD for Finishing

For precision machining where edge sharpness is critical, PVD Coated Carbide (SH725) is the superior choice over CVD. The thinner coating keeps the JS edge micro-sharp, ensuring your tool life and surface finish remain world-class.

© 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.