Tungaloy JTGR3300F J740 PVD Coated External Grooving Insert - CNCHome-Beyond

Tungaloy JTGR3300F 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 JTGR3300F J740 Grooving Insert

High-Precision 3.0mm External Grooving | PVD J740 Carbide | Made in Japan

What is the best 3.0mm insert for stable grooving in stainless steel?

The Tungaloy JTGR3300F J740 is a versatile indexable grooving tool optimized for standard 3.0mm external grooving applications. Featuring the high-toughness J740 PVD coated carbide grade, this insert is the primary choice for machining 300-series stainless steels, titanium, and cobalt-chrome alloys. The 3.0mm cutting width (CW) coupled with the F-type chipbreaker (Flat geometry) provides superior edge sharpness and vibration resistance. This is critical for preventing built-up edge (BUE) and maintaining dimensional stability in CNC machining. As a genuine Japan-made grooving insert, it ensures high tool life and an exceptional surface finish Ra.

Decoding the JTGR3300F Technical Nomenclature

J
Mounting
T
External
G
Grooving
R
Right Hand
3300
3.0mm Width
F
Flat Geometry
J740
PVD Grade

Technical Specs: Metric vs. Imperial Units

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 3.00 mm 0.1181 inch
Corner Radius (RE) 0.20 mm 0.0078 inch
Model Number JTGR3300F JTGR 3.118F
Seat Size 3 Series 3

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 45 - 150 m/min (Depending on alloy group)
  • Feed Rate (f): 0.04 - 0.15 mm/rev (Stable for 3.0mm width)
  • Coolant: High-pressure coolant is ideal for deep grooving.

*Pro Tip: Ensure the tool holder shank is as short as possible to maximize rigidity for 3.0mm operations. J740 grade excels in preventing edge chipping.*

Global Verified Customer Reviews

⭐⭐⭐⭐⭐ "Reliable 3.0mm Performance" - Lars M., Germany
"The JTGR3300F is my go-to for standard grooving. The J740 grade holds up incredibly well against heat."

⭐⭐⭐⭐⭐ "Excellent Surface Finish" - Giorgio P., Italy
"Very clean grooves on stainless 304. No vibration even at high speeds. Tungaloy Japan quality is obvious."

⭐⭐⭐⭐ "Great Chip Management" - Robert T., USA
"The F geometry breaks the chips perfectly in our CNC lathes. Reduced our downtime significantly."

⭐⭐⭐⭐⭐ "Long Tool Life" - Nguyen V., Vietnam
"We get 30% more parts per edge compared to our previous brand. J740 is very tough for mass production."

⭐⭐⭐⭐⭐ "Authentic Product" - David S., Australia
"Shipped fast. Genuine Tungaloy. The 3.0mm width is held with high precision across the entire box."

Technical Tooling Q&A

Q: Can I use JTGR3300F for parting-off 20mm bars?

A: It is primarily designed for external grooving. While it can handle light parting, for dedicated high-speed parting, Tungaloy's dedicated parting series is recommended.

Q: Which tool holder is compatible with this insert?

A: Use the JCTEL/R external holder series. Always ensure the seat size matches the Series 3 designation of the insert.

Q: Why choose PVD J740 over CVD grades?

A: PVD coatings like J740 are thinner and sharper, providing higher resistance to edge build-up and chipping during precision grooving compared to thicker CVD coatings.

Expert Insight: Precision Grooving Logic

In precision machining, J740 grade acts as a universal problem-solver for stainless steel. While CVD coatings favor heat resistance in heavy turning, J740 provides the sharp edge stability required for the 3.0mm CNC grooving cycles. Always prioritize rigidity.

© 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.