Tungaloy JTGR3225F J740 PVD Coated External Grooving Insert - CNCHome-Beyond

Tungaloy JTGR3225F J740 PVD Coated External Grooving Insert

$200.17 USD

Free shipping on all orders.
Check compatibility: Confirm the model and dimensions before ordering.
Need help choosing? Contact us before ordering.

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

Add to WishlistCompare
WhatsApp Inquiry

american expressmasterpaypalvisaapple paygoogle payshopify pay
Description

Tungaloy JTGR3225F J740 Grooving Insert

High-Precision 2.25mm External Grooving | PVD J740 Carbide | Made in Japan

What is the best 2.25mm insert for narrow grooving in titanium?

The Tungaloy JTGR3225F J740 is a high-performance indexable grooving tool designed for ultra-accurate external grooving. Built with the premium J740 PVD coated carbide grade, this insert is specifically optimized for machining difficult-to-cut materials like 304/316 stainless steel, heat-resistant superalloys, and titanium. The 2.25mm cutting width (CW) combined with the F-type chipbreaker ensures high edge sharpness and excellent chip control, which is essential for preventing built-up edge (BUE) in precision CNC machining. As an authentic Japan-made grooving insert, it provides the reliability needed for maintaining tight tolerances and a superior surface finish Ra.

Decoding the JTGR3225F Technical Nomenclature

J
Mounting
T
External
G
Grooving
R
Right Hand
3225
2.25mm Width
F
Flat/Fine
J740
PVD Grade

Technical Specs: Metric vs. Imperial Units

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 2.25 mm 0.0886 inch
Corner Radius (RE) 0.20 mm 0.0078 inch
Model Number JTGR3225F JTGR 3.089F
Seat Size 3 Series 3

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 40 - 140 m/min (Highly dependent on workpiece material)
  • Feed Rate (f): 0.03 - 0.12 mm/rev (Optimize for 2.25mm stability)
  • Coolant: High-pressure flood coolant is highly recommended.

*Pro Tip: For 2.25mm 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

⭐⭐⭐⭐⭐ "Predictable and Tough" - Matthias S., Germany
"The JTGR3225F J740 is our standard for 2.25mm grooves in aerospace components. Very predictable tool life even in Inconel."

⭐⭐⭐⭐⭐ "No Smearing on 316L" - Alessandro B., Italy
"Handles stainless steel beautifully. The F-breaker keeps the cut clean and the surface finish is excellent."

⭐⭐⭐⭐ "Great for Swiss Lathes" - Kevin M., USA
"The precision of these Tungaloy inserts is unmatched. We use them for small medical parts with high success rates."

⭐⭐⭐⭐⭐ "Genuine Quality" - S. Tanaka, Japan
"Very stable performance. J740 grade is perfect for balancing hardness and toughness in CNC production."

⭐⭐⭐⭐⭐ "Highly Recommended" - James P., UK
"Fast shipping and authentic parts. The 2.25mm width is exactly what we needed for specific hydraulic grooves."

Technical Tooling Q&A

Q: Is JTGR3225F 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 best optimized for precision 2.25mm grooves.

Q: Which tool holder do I need for this 2.25mm insert?

A: It is designed for Tungaloy J-Series external holders, such as the JCTEL/R series. Always match the seat size for Series 3 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 than in heavy CVD turning.

Expert Insight: PVD vs. CVD in Precision Grooving

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.