Tungaloy JTGR3075F 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 JTGR3075F J740 Grooving Insert

High-Precision 0.75mm External Grooving | PVD J740 Grade | Made in Japan

What is the most durable insert for 0.75mm precision grooving?

The Tungaloy JTGR3075F J740 is an elite-level indexable grooving tool specifically engineered for narrow, high-accuracy external grooving. Utilizing the renowned J740 PVD coated carbide grade, this insert provides exceptional toughness and resistance to Built-Up Edge (BUE), making it the primary choice for machining stainless steel, heat-resistant alloys, and carbon steels. The 0.75mm cutting width is ideal for micro-grooving and fine component parting where dimensional accuracy is critical. As a premium CNC machining component made in Japan, this long-tail keywords optimized insert ensures maximum tool life and repeatability in the most demanding production cycles.

Decoding the JTGR3075F Technical Nomenclature

J
Series
T
External
G
Grooving
R
Right Hand
3075
0.75mm Width
F
Flat/Fine
J740
PVD Grade

Technical Specs: Metric vs. Imperial Conversion

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 0.75 mm 0.0295 inch
Corner Radius (RE) 0.08 mm 0.0031 inch
Lead Angle 0° (Neutral) 0° Degree
Hand Orientation Right Hand (R) Right Hand

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 40 - 140 m/min (Highly dependent on material hardness)
  • Feed Rate (f): 0.02 - 0.06 mm/rev (For micro-grooving stabilization)
  • Coolant: High-pressure coolant is highly recommended to flush chips from narrow 0.75mm slots.

*Pro Tip: For precision parting or grooving on small diameters, always check your tool center height to prevent rubbing and premature wear.*

Global Industry Feedback

⭐⭐⭐⭐⭐ "Perfect for Micro Grooves" - K. Wagner, Germany
"We struggled to find a reliable 0.75mm width insert for our stainless parts until we tried Tungaloy J740. The precision is world-class."

⭐⭐⭐⭐⭐ "Consistent Tool Life" - D. Roberts, USA
"Japan-made quality shines here. Holds its edge even through tough alloy runs. J740 is our go-to grade for PVD applications."

⭐⭐⭐⭐ "Great Chip Control" - Hiroshi T., Japan
"Stable performance on CNC lathes. The F breaker works perfectly for fine grooving tasks. Very satisfied with the finish."

⭐⭐⭐⭐⭐ "Medical Part Specialist" - L. Bianchi, Italy
"Critical for our micro-surgical component grooving. The J740 grade doesn't smear the material, giving a crisp edge."

⭐⭐⭐⭐⭐ "Excellent Packaging & Quality" - S. Clarke, UK
"Authentic Tungaloy inserts. They deliver exactly what the catalog promises. Fast shipping to the UK."

Technical Tooling Q&A

Q: Can JTGR3075F handle stainless steel 316?

A: Yes, the J740 PVD grade is specifically optimized for stainless steel. It prevents the built-up edge and withstands the heat generated in difficult-to-cut alloys.

Q: Which tool holder is compatible with this insert?

A: This insert fits Tungaloy's J-Series external grooving holders (JCTEL/R). Ensure your holder matches the 3xxx seat size series.

Q: Is there a Left-Hand version available?

A: This specific model is Right-Hand (R). For Left-Hand operations, you would require the JTGL series with a matching JCTEL holder.

Expert Insight: J740 PVD Versatility

In precision machining, J740 represents a breakthrough in PVD coating technology for CNC grooving. While CVD grades excel in continuous high-speed turning, J740 provides the edge toughness required for the repetitive shock of grooving and parting cycles. Protect your indexable grooving tool with proper filtration.

© 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.