DCGT 11T302 J740 Wendeplatten - Tungaloy

Take advantage of the combination of precise 55° rhombic geometry, the wear‑resistant J740 grade and a fine 0.2 mm nose radius for consistent turning performance; order directly via Metav Werkzeuge or consult our specialists for application guidance.

DCGT 11T302 J740 indexable turning insert (55° rhombic) — Tungaloy

The DCGT11T302 J740 is an ISO‑standard rhombic insert for external and internal turning, engineered to deliver stable cutting edge performance in a wide range of machining situations.

*ISO‑standard 55° rhombic geometry *J740 carbide grade for wear resistance *0.2 mm nose radius for fine profiling *Cylindrical hole with 40°–60° countersink

Precision geometry for consistent chip control and surface quality

The combination of a 55° rhombic geometry and a one‑sided chipbreaker provides controlled chip formation and reliable contact conditions at the cutting zone. This geometry concentrates cutting forces in a stable manner, which reduces vibration and improves surface finish during both light finishing passes and heavier interrupted cuts. The insert is manufactured to ISO tolerances, ensuring repeatable mounting in compatible toolholders and predictable process behaviour across different machines and set‑ups.

Durable carbide grade that extends tool life and edge stability

The J740 grade, supplied by Tungaloy, is a purpose‑designed cemented carbide formulation that balances wear resistance with sufficient toughness for demanding turning tasks. Combined with a refined cutting edge and a 0.2 mm nose radius, the grade helps maintain dimensional accuracy and prolongs service intervals, particularly on operations where edge stability matters. The plate thickness of 3.97 mm supports rigidity in the clamping system and contributes to consistent chip flow and longer usable life of the cutting edge.

System compatibility and easy integration into machining setups

Compatibility with toolholders is determined by form, 7° relief angle, tolerance class, fastening method, size and thickness; the insert includes a cylindrical hole with a single‑side countersink (40°–60°) to match common clamping systems. The rhombic shape and the specified 11 mm size allow straightforward pairing with suitable external holders or boring bars, plus the full system comprises an outer holder, a locating shim/clamping set and replacement screws for secure assembly. The manufacturer article number and SKU facilitate ordering and replacement within established tooling inventories.

For reliable production performance with a Tungaloy J740 turning insert, contact Metav Werkzeuge for availability and tailored technical advice: info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 6802831
• Manufacturer SKU: TUN6802831
• Model series: ISO turning indexable inserts
• Brand: Tungaloy

Facts

• Geometry angle: 55°
• Nose radius: 0.2 mm
• Plate thickness: 3.97 mm
• Plate size: 11
• Relief angle: 7°

Special features

• Rhombic plate form, 55°
• One‑sided chipbreaker
• Cylindrical hole + single‑side countersink (40°–60°)
• Cemented carbide material
• Grade: J740 (Tungaloy)
• Designed for external and internal turning
• Compatibility depends on form, relief angle, tolerance class, fastening, size and thickness
• System: compatible outer holder, locating shim/clamping set and replacement screws

FAQ

What turning tasks is this insert intended for?
The DCGT11T302 J740 insert is intended for both external and internal turning where a 55° rhombic form and a controlled chipbreaker are advantageous for surface quality and process stability.

How does the J740 grade affect performance?
The J740 grade by Tungaloy is a wear‑resistant cemented carbide that offers an optimised balance of toughness and abrasion resistance, improving edge stability and extending tool life in repetitive turning operations.

Which holder features are required for correct mounting?
Correct mounting requires a holder matching the insert form, 7° relief angle, tolerance class, fastening method, plate size and thickness; the insert’s cylindrical hole with a 40°–60° countersink is compatible with common clamping systems.

What role does the 0.2 mm nose radius play?
The 0.2 mm nose radius provides a fine profile radius that helps achieve dimensional accuracy and improved surface finish on finishing passes, while still allowing sufficient strength for general turning tasks.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.