Tungaloy JTGR3145F J740 PVD Coated External Grooving Insert

Tungaloy JTGR3145F J740 PVD Coated External Grooving Insert

$200.17 USD

✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

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Description

Tungaloy JTGR3145F J740 Grooving Insert

High-Precision 1.45mm External Grooving | PVD J740 Carbide | Made in Japan

What is the best 1.45mm insert for precision grooving in difficult alloys?

The Tungaloy JTGR3145F J740 is a premier indexable grooving tool specifically engineered for high-accuracy external grooving. Utilizing the high-performance J740 PVD coated carbide grade, this insert excels in machining tough materials like 304/316 stainless steel, titanium, and heat-resistant superalloys. The 1.45mm cutting width (CW) and F-type chipbreaker provide exceptional edge sharpness and chip evacuation, which is critical for preventing built-up edge (BUE) in precision CNC machining. As an authentic Japan-made long-tail keywords optimized insert, it is the industry standard for maintaining tight tolerances and superior surface finish Ra, ensuring consistent tool life in high-demand production cycles.

Decoding the JTGR3145F Technical Nomenclature

J
Mounting
T
External
G
Grooving
R
Right Hand
3145
1.45mm Width
F
Fine/Flat
J740
PVD Grade

Technical Specs: Metric vs. Imperial Units

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 1.45 mm 0.0571 inch
Corner Radius (RE) 0.10 mm 0.0039 inch
Model Number JTGR3145F JTGR 3.057F
Seat Size 3 Series 3

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 40 - 140 m/min (Depending on material group)
  • Feed Rate (f): 0.02 - 0.09 mm/rev
  • Coolant: High-pressure coolant is highly recommended for 1.45mm narrow slots.

*Pro Tip: For 1.45mm precision grooving, verify tool center height exactly to prevent rubbing and ensure superior surface Ra. J740 provides high toughness for interrupted grooving cycles.*

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Extremely Reliable" - K. Schneider, Germany
"The JTGR3145F J740 is our standard for specific 1.45mm grooves. Predictable tool life and perfect edge toughness on stainless."

⭐⭐⭐⭐⭐ "Quality Made in Japan" - T. Nguyen, Vietnam
"Tungaloy J740 grade doesn't disappoint. Maintains precision even after long shifts on medical grade components."

⭐⭐⭐⭐ "Great for Aerospace" - M. Miller, USA
"Perfect for the shallow grooves we need in titanium alloys. Chips break cleanly with the F-type geometry."

⭐⭐⭐⭐⭐ "Excellent Surface Finish" - Roberto F., Italy
"Used these for final grooving on 316L parts. Zero burrs and very high shine on the groove bottom."

⭐⭐⭐⭐⭐ "Fast Shipping & Genuine" - S. Clarke, UK
"Best price I could find for genuine Tungaloy. The 1.45mm width is exact every single time."

Technical Tooling Q&A

Q: Is JTGR3145F suitable for high-speed parting?

A: This is specifically an external grooving insert. While it can perform light parting-off on small diameters, its flat geometry (F) is optimized for precision 1.45mm wide grooves.

Q: Which tool holder do I need for this insert?

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: Why choose J740 over CVD grades for grooving?

A: J740 (PVD) provides a sharper cutting edge and higher toughness, which is critical for narrow grooving where vibration is more likely compared to heavy CVD turning.

Expert Insight: PVD Coating Advantage

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. Protect your indexable grooving tool with filtered coolant.

© Technical Content by cnchome-beyond.com - Japan Tooling Excellence

Technical FAQ & Buying Guide

How do I choose the correct specification?

When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.

How can I check compatibility with my existing setup?

For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.

What quantity and price unit am I ordering?

Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.

How should I choose cutting parameters?

Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.

Are bulk discounts available?

Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.

When will my order ship and arrive?

According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.