Tungaloy JTGR3050F J740 PVD Coated Grooving Insert for Precision External Grooving

$200.17 USD

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Description

Tungaloy JTGR3050F J740 Grooving Insert

High-Precision External Grooving | Specialized J740 PVD Grade | Japan Excellence

What is the best insert for zero-lead angle grooving in tough alloys?

The Tungaloy JTGR3050F J740 is a premier indexable grooving tool specifically engineered for high-accuracy external grooving. The J740 PVD coated carbide grade is the professional choice for machining stainless steel and heat-resistant superalloys, providing unmatched resistance to built-up edge (BUE) and notch wear. Featuring a 0.50mm cutting width and a specialized chipbreaker for narrow grooving, this CNC machining insert ensures incredible surface integrity. As a Japan-made high-performance tool, this long-tail keywords optimized insert provides extended tool life and repeatability, making it a critical component for aerospace and medical manufacturing.

Decoding the JTGR3050F Technical Nomenclature

J
Mounting
T
External
G
Grooving
R
Right Hand
3050
0.5mm Width
F
Fine/Flat
J740
PVD Grade

Technical Specs: Metric vs. Imperial Units

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 0.50 mm 0.0197 inch
Corner Radius (RE) 0.05 mm 0.0020 inch
Lead Angle 0° (Neutral Fine) Neutral Lead
Mounting Type J-Series Type J-Type Tooling

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 40 - 130 m/min (Material dependent)
  • Feed Rate (f): 0.01 - 0.05 mm/rev (Specialized for thin grooves)
  • Coolant: Required for heat control in narrow slots.

*Pro Tip: For 0.5mm grooving, ensure the tool holder is perfectly aligned to the spindle center to prevent edge chipping during entry.*

Customer Feedback Across the Globe

⭐⭐⭐⭐⭐ "Incredible for micro-grooving" - Matthias K., Germany
"The precision of JTGR3050F is unmatched. We used it for specialized electronic connectors in stainless. 0.5mm width is spot on."

⭐⭐⭐⭐⭐ "J740 lasts longer" - Robert S., USA
"Tougher than other PVD grades I've tried. No built-up edge on Inconel parts. Excellent Tungaloy quality."

⭐⭐⭐⭐ "Very stable cuts" - Hiro K., Japan
"Standard choice for our precision lathes. The chip control at this narrow width is very reliable."

⭐⭐⭐⭐⭐ "Beautiful Finish" - Alessandro B., Italy
"Used for aerospace hydraulic fittings. The surface finish is better than expected for a carbide insert."

⭐⭐⭐⭐⭐ "Fast Shipping" - A. Clarke, UK
"Authentic Tungaloy parts. The J740 grade is perfect for our 304 stainless jobs."

Technical Tooling Q&A

Q: Is JTGR3050F suitable for parting off?

A: This is primarily an external grooving insert. While it can perform very light parting on small diameters, its flat geometry (F) is optimized for precision grooves.

Q: Why choose J740 over cermet grades?

A: J740 (PVD Carbide) provides significantly higher toughness. If your material is stainless steel or has interruptions, J740 will resist chipping far better than a cermet.

Q: Does it fit my existing holder?

A: It is designed for Tungaloy J-Series external holders (JCTEL/R). Please verify the seat size of your holder before installation.

Expert Insight: J740 PVD Versatility

In precision machining, J740 is the go-to grade for thermal resistance. While CVD coatings are for high-speed roughing, J740 provides the sharp, vibration-resistant edge needed for the delicate cycles of CNC grooving. Always ensure high-quality coolant is used.

© 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.