Tungaloy CCGT09T302FR-J10 J740 PVD Coated Carbide Turning Insert - BEYOND

Tungaloy CCGT09T302FR-J10 J740 PVD Coated Carbide Turning Insert

$93.30 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

TUNGALOY CCGT09T302FR-J10 J740

Sharp J10 Chipbreaker | J740 Tough PVD Grade | Precision Light Finishing

Product Overview

The Tungaloy CCGT09T302FR-J10 J740 is a high-precision PVD coated carbide turning insert specifically designed for light finishing and internal boring. Featuring the ultra-sharp J10 chipbreaker, this insert excels in managing long, stringy chips often found in stainless steel and high-temp alloys. The J740 grade utilizes a specialized PVD coating over a tough carbide substrate, providing excellent resistance to built-up edge (BUE) and thermal cracking. For CNC machining professionals who require a sharp cutting edge and tight tolerances, this indexable turning tool made in Japan is the gold standard for precision machining in challenging materials.

Technical Designation Breakdown

C
80° Rhombic
C
7° Clearance
G
G Tolerance
T
Hole Type
09
9.5mm Size
T3
3.97mm Thick
02FR
0.2mm Right
J10
Finishing

Technical Specifications: Metric vs. Imperial

Dimension Metric Unit Imperial Equivalent
Inscribed Circle 9.525 mm 3/8 inch
Insert Thickness 3.97 mm 5/32 inch
Corner Radius 0.2 mm 0.008 inch

J740 PVD Grade: Toughness for Hard Materials

The J740 grade is a highly reliable choice for machining difficult-to-cut materials like Stainless Steels (M-class) and Superalloys (S-class). This long-tail keywords industry favorite combines a PVD coating with high-quality carbide to ensure tool life stability during light-interrupted cuts or low-speed internal turning.

J10 Chipbreaker Logic

The J10 Chipbreaker is specifically ground to have a sharp, positive rake angle. This design minimizes cutting forces and prevents work hardening of the workpiece surface, making it ideal for precision machining of small, delicate components where surface integrity is paramount.

Recommended Cutting Parameters

Optimized for M (Stainless) and S (Superalloys):

  • Cutting Speed (Vc): 50 - 150 m/min (165 - 490 SFM)
  • Feed Rate (f): 0.03 - 0.12 mm/rev (Precision range)
  • Depth of Cut (ap): 0.1 - 0.8 mm (Finishing only)

*Pro Tip: For optimal chip breaking in sticky stainless steels, utilize a slightly higher feed rate toward the upper limit of the range.*

Global Verified Reviews

⭐⭐⭐⭐⭐ "Best for Stainless Boring" - Hans W., Germany
"The J10 chipbreaker is fantastic for 304 stainless. No more nesting around the boring bar. The J740 grade lasts much longer than standard carbide."

⭐⭐⭐⭐⭐ "Incredible Sharpness" - Takeshi K., Japan
"Perfect for precision medical parts. The 0.2mm radius is very accurate, and the finish is very clean. Typical Tungaloy high quality."

⭐⭐⭐⭐ "Very Reliable J740 Grade" - Steve M., USA
"Used these for light finishing on Inconel parts. Stayed sharp longer than the competitor's PVD inserts. Very happy with the results."

⭐⭐⭐⭐⭐ "Great Chip Control" - Marco V., Italy
"No stringy chips! The J10 geometry is perfectly designed for thin walls and delicate finishing passes."

⭐⭐⭐⭐⭐ "Fast Delivery & Original" - Chuan L., Singapore
"Original Tungaloy Japan inserts. Very fast shipping. Excellent for high-speed CNC precision work."

Technical Q&A

Q: Is this insert suitable for roughing?

A: No. The J10 chipbreaker and 0.2mm radius are optimized for light finishing and precision. Roughing will likely cause premature edge wear or chipping.

Q: What tool holder should I use?

A: This is a right-hand insert (FR). Use a standard Right-hand tool holder (SCLCR09) or boring bar designed for CCGT09 inserts.

Q: Can I use this for dry cutting?

A: While the J740 grade is heat resistant, we highly recommend using coolant when machining stainless steel to improve chip evacuation and surface finish.

Expert Machining Tip: J10 for Precision

The **J10 chipbreaker** is a "sharp-edge" geometry. This means it cuts through material with very low friction. For precision machining in CNC machining lathes, this prevents parts from flexing and ensures your internal bores stay perfectly straight and within tolerance.

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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.