Tungaloy JTGR3100F J740 PVD Coated External Grooving Insert

$200.17 USD

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

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Description

Tungaloy JTGR3100F J740 Grooving Insert

Professional 1.0mm External Grooving | PVD J740 Carbide | Made in Japan

What is the most reliable insert for 1.0mm grooving in stainless steel?

The Tungaloy JTGR3100F J740 is a high-precision indexable grooving tool designed for ultra-accurate external grooving operations. Engineered with the high-performance J740 PVD coated carbide grade, this insert excels in machining difficult-to-cut materials like 304/316 stainless steel, titanium, and heat-resistant alloys. The 1.0mm cutting width (CW) and F-type chipbreaker provide exceptional chip evacuation and edge sharpness, preventing built-up edge (BUE) in "gummy" materials. As a Japan-made CNC machining solution, this long-tail keywords optimized insert is the industry standard for maintaining tight tolerances and superior surface finish Ra. Incorporating these into your workflow ensures consistent tool life and reduced machine downtime.

Decoding the JTGR3100F Technical Nomenclature

J
Mounting
T
External
G
Grooving
R
Right Hand
3100
1.0mm Width
F
Flat/Fine
J740
PVD Grade

Technical Specs: Metric vs. Imperial Conversion

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 1.00 mm 0.0394 inch
Corner Radius (RE) 0.10 mm 0.0039 inch
Max Grooving Depth Check Holder Capacity J-Series Type
Hand Orientation Right Hand (R) Right Hand

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 40 - 130 m/min (Highly dependent on workpiece material)
  • Feed Rate (f): 0.02 - 0.08 mm/rev
  • Coolant: High-pressure coolant is strongly advised for 1.0mm slotting.

*Pro Tip: For 1.0mm precision grooving, ensure your CNC tool offset is calibrated perfectly to the center. J740 is incredibly tough, but alignment is key to preventing vibration.*

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Standard for 1.0mm Slots" - Matteo V., Italy
"The JTGR3100F is my go-to for hydraulic valve components. The 1.0mm width is extremely stable and the J740 grade handles stainless 316 without breaking a sweat."

⭐⭐⭐⭐⭐ "Exceptional Tool Life" - S. Tanaka, Japan
"Very sharp and clean cuts. The PVD coating is durable and resists notch wear even on tough carbon steel."

⭐⭐⭐⭐ "Great Performance on Swiss Lathes" - Chris B., USA
"Used these on a Citizen machine for medical shafts. Precision 1.0mm grooves with zero vibration. Highly recommend Tungaloy J-Series."

⭐⭐⭐⭐⭐ "Reliable Chip Control" - Hans M., Germany
"No stringy chips. The F chipbreaker curls them perfectly out of the narrow groove. Reduces the risk of bird-nesting."

⭐⭐⭐⭐⭐ "Best Price for Quality" - A. Clarke, UK
"Fast shipping and authentic J740 stock. These inserts outperform cheaper alternatives every single time."

Technical Tooling Q&A

Q: Is JTGR3100F better for grooving or parting?

A: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its primary function is creating precision 1.0mm wide grooves.

Q: Which tool holder fits the JTGR3100F?

A: It is designed for Tungaloy J-Series external holders, such as the JCTEL/R series. Please match the seat size for the 3xxx series inserts.

Q: Can J740 handle high-temp alloys like Inconel?

A: Yes, J740 is a versatile PVD grade known for high thermal stability and toughness, making it suitable for moderate speeds in heat-resistant superalloys.

Expert Insight: The Power of J740 PVD Grade

In precision machining, J740 represents the peak of edge toughness. While CVD coatings are optimized for high-volume steel roughing, J740 provides the sharp stability needed for the narrow slotting cycles of CNC grooving. Always verify your lead angle requirements for maximum accuracy.

© 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.