Tungaloy DCGT11T302FR-J10 SH725 Precision Finishing Turning Insert

$114.94 USD

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Description

Tungaloy DCGT11T302FR-J10 SH725 Turning Insert

Ultra-Precision Finishing | SH725 PVD Toughness | Made in Japan

What is the best carbide insert for finishing small stainless steel parts?

The Tungaloy DCGT11T302FR-J10 SH725 is a high-accuracy precision finishing turning insert specifically engineered for high-demand applications in steel, stainless steel, and superalloys. The SH725 grade is a specialized PVD coated carbide that offers a perfect synergy of edge sharpness and heat resistance, preventing the common "built-up edge" (BUE) found in sticky materials. This indexable turning tool features the -J10 chipbreaker, a ground-periphery geometry designed to produce mirror-like surface Ra values while maintaining tight tolerances. Whether you are running CNC machining operations on medical components or aerospace fasteners, this Japan-made precision machining insert provides extended tool life and consistent performance in light-duty finishing passes. By choosing this long-tail keywords optimized insert, you ensure process security for your most delicate workpieces.

Decoding the DCGT11T302FR-J10 Technical Nomenclature

D
55° Rhombic
C
7° Clearance
G
G Tolerance
T
Hole & Screw
11
11.6mm Edge
T3
3.97mm Thick
02
0.2mm Radius
FR
Right Hand

Technical Specs: Metric vs. Imperial Comparison

Standard Detail Metric Designation Imperial Equiv.
Product Model DCGT11T302FR-J10 DCGT32.50.5FR-J10
Inscribed Circle (IC) 9.525 mm 3/8 inch
Corner Radius (RE) 0.2 mm 0.008 inch

How does the SH725 grade improve tool life in small-part turning?

The SH725 PVD Grade utilizes a multi-layered coating technology that provides extreme hardness and high thermal resistance. Unlike traditional grades, SH725 maintains its cutting edge integrity even when machining work-hardening materials like stainless steel. The -J10 chipbreaker is specifically designed for finish-turning with low cutting forces. Its highly positive rake angle ensures that the chips are curled and broken efficiently at low feed rates, preventing damage to the finished surface. In precision machining, this indexable turning tool is essential for shops looking to reduce cycle times and eliminate secondary finishing operations. For CNC machining of slender or small-diameter parts, the sharp edge of the DCGT11T302 prevents deflection and ensures dimensional stability.

Recommended Cutting Parameters for SH725

  • Cutting Speed (Vc): 50 - 160 m/min (Material dependent)
  • Feed Rate (f): 0.03 - 0.12 mm/rev
  • Depth of Cut (ap): 0.1 - 1.0 mm

*Pro Tip: For medical-grade stainless, aim for the mid-range speed and ensure high-quality lubricant is used.*

Feedback from Global Precision Workshops

⭐⭐⭐⭐⭐ "Mirror Finish on Stainless" - David K., USA
"We turn 316 stainless medical parts. The SH725 grade gives us a finish that we used to only get with grinding. Incredible precision."

⭐⭐⭐⭐⭐ "Extremely Sharp Edge" - Stefan M., Germany
"The J10 geometry is very sharp. No deflection even on long thin shafts. Tungaloy Japan quality is world-class."

⭐⭐⭐⭐ "Very Stable Performance" - Luca B., Italy
"Predictable tool life. We run these on our Citizen Swiss lathes and the offsets stay stable all day."

⭐⭐⭐⭐⭐ "Best for Finish Passes" - Hiroshi Y., Japan
"High precision G-tolerance. If you need a exact diameter, this is the insert to use. SH725 is very tough."

⭐⭐⭐⭐⭐ "Authentic and Fast" - Liam S., Australia
"Original Tungaloy. The 0.2mm radius is perfect for fine detailing. Performance is exactly per the technical sheet."

Technical Tooling Q&A

Q: Is SH725 better than J740 for finishing?

A: SH725 is generally tougher and better for high-heat applications or difficult-to-cut materials like Heat Resistant Super Alloys (HRSA), while J740 is a great general-purpose steel finishing grade.

Q: Can I use this for roughing?

A: No. The DCGT11T302 is a precision finishing insert. The sharp edge and small 0.2mm radius will fail immediately under heavy roughing loads.

Q: What tool holder is compatible?

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

Expert Tip: Tooling for Exotic Alloys

For precision machining of titanium or Inconel, PVD Coated Carbide (SH725) is the industry benchmark. The combination of the J10 breaker and SH725 ensures that you maintain the sharpest edge possible, which is key to preventing surface hardening and maximizing tool life.

© 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.