Tungaloy JCGN200F / JCGN200FR J740 PVD Coated Grooving Inserts
Tungaloy JCGN200F / JCGN200FR J740 PVD Coated Grooving Inserts

Tungaloy JCGN200F / JCGN200FR J740 PVD Coated Grooving Inserts

$291.17 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

DESIGNATION: JCGN200F J740

JCGN200F J740
JCGN200FR J740
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Description

Tungaloy JCGN200F / JCGN200FR J740 Inserts

Ultra-Precision Grooving | Specialized J740 PVD Grade | Japan Excellence

What is the best grooving insert for tight tolerances in stainless steel?

The Tungaloy JCGN200F J740 and its right-hand counterpart JCGN200FR J740 are elite-level indexable grooving tools designed for micro-precision and small-part machining. The J740 PVD coated carbide grade is the industry standard for handling "gummy" materials like stainless steel and high-temp alloys, offering superior resistance to built-up edge (BUE). With a precise 2.0mm cutting width, these CNC machining inserts provide exceptional surface integrity and dimensional stability. Whether you are performing external grooving or high-precision parting, this long-tail keywords optimized series ensures maximum tool life and repeatability. Made in Japan, these inserts are essential for medical, aerospace, and high-end automotive component production.

Decoding the JCGN Technical Nomenclature

J
Mounting
C
Double Edge
G
Grooving
N
Neutral
200
2.0mm Width
F/FR
Lead Angle
J740
PVD Grade

Technical Specs: Metric vs. Imperial Units

ISO Parameter Metric Unit Imperial Designation
Cutting Width (CW) 2.00 mm 0.0787 inch
Corner Radius (RE) 0.10 mm 0.0039 inch
Lead Angle (Hand) 0° (F) / 15° (FR) Neutral / Right Hand
Mounting Type J-Series Holder J-Type Tooling

Recommended Cutting Parameters (J740 Grade)

  • Cutting Speed (Vc): 50 - 130 m/min (Stainless/Steel)
  • Feed Rate (f): 0.02 - 0.08 mm/rev (Precision Range)
  • Coolant: High-pressure coolant highly recommended for chip evacuation.

*Pro Tip: When using the JCGN200FR (lead angle version), reduce feed slightly upon entry to ensure the sharpest edge integrity.*

Global Verified Feedback

⭐⭐⭐⭐⭐ "Perfect for Small Parts" - M. Berger, Switzerland
"We use JCGN200F for watch components. The width is incredibly consistent, and J740 handles the tough alloys without chipping."

⭐⭐⭐⭐⭐ "Excellent Surface Ra" - T. Sato, Japan
"Switching to Tungaloy J740 reduced our reject rate on stainless valves. The edge stays sharp significantly longer than competitors."

⭐⭐⭐⭐ "Reliable J-Series Tooling" - John L., USA
"Standard grooving on our Swiss-style lathes. The FR version helps beautifully with burr reduction on the parting side."

⭐⭐⭐⭐⭐ "Predictable Wear" - Luca G., Italy
"High-speed precision is key for us. Tungaloy delivers consistency in every pack. Highly recommend for medical grade steels."

⭐⭐⭐⭐⭐ "Sharp and Stable" - A. Clarke, UK
"Very low cutting forces. This prevents deflection in small diameters. Fast shipping and authentic stock."

Technical Tooling Q&A

Q: What is the difference between JCGN200F and JCGN200FR?

A: The "F" is a neutral lead angle for flat grooves. The "FR" has a right-hand lead angle, which is often used in parting-off to minimize the burr or "pip" on the finished part.

Q: Is J740 better than cermet for grooving?

A: For stainless steel and alloys, yes. J740 (PVD Carbide) has higher toughness and thermal shock resistance, which is vital during the varied speeds of a grooving or parting cut.

Q: Which tool holder do I need?

A: These inserts are designed for Tungaloy's J-Series holders (e.g., JCTEL/R). Ensure the pocket size matches the JCGN 2.0mm width.

Expert Comparison: J740 PVD Technology

In precision machining, J740 is the master of high-toughness PVD coating. While CVD grades are for high-speed steel, J740 provides the sharp, stable edge needed for the demanding thermal cycles of CNC grooving. Always verify your lead angle requirements before purchase.

© 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.