DDJN L2020K Wendeplatten - Tungaloy

Combine ISO‑standard compatibility, cemented carbide construction and a 15° relief angle for versatile, durable turning performance; order the insert directly via Metav Werkzeuge or contact our consultants for selection support.

DDJN L2020K — Turning insert DDJNL2020K (Tungaloy), rhomboid, 15° relief

The DDJNL2020K is an ISO‑standard rhomboid indexable insert developed for external and internal turning operations, offering multiple cutting edges and straightforward integration into ISO‑compliant tool systems.

• ISO‑standard rhomboid insert
• 15° relief angle for flexible turning
• Cemented carbide for reliable tool life
• 2.38 mm plate thickness, without hole

Versatile ISO compatibility for reliable production

The ISO‑standard designation and rhomboid geometry ensure broad compatibility with established turning holders. As an indexable insert, the plate benefits from multiple usable edges, which supports predictable tool changes and reduces setup time. The 55° included angle of the rhomboid form provides a balance between access in confined bores and cutting‑edge strength, while the ISO model series indicates conformity with common holder dimensions. Compatibility is determined by holder form, relief angle, tolerance class, fastening method, plate size and thickness, so selecting a matching clamping system is essential for stable cutting.

Stable clamping and predictable performance in turning

With a plate thickness of 2.38 mm and a configuration supplied without hole, this variant is intended for holders that use flank or clamp systems rather than central screws. The modest thickness contributes to consistent rigidity in typical turning tasks, while the absence of a hole simplifies the insert geometry and can reduce cost per edge. For operations requiring a chipformer, a different insert version with an integrated chipbreaker should be chosen to improve chip control; this specific type arrives without chipbreaker so is best applied where chip formation is manageable or external chip control systems are in place.

Material choice and application benefits

Manufactured from cemented carbide, the plate combines wear resistance with cutting‑edge stability suited to a wide range of turning actions. Cemented carbide provides a durable cutting edge that helps maintain dimensional accuracy across multiple indexed positions, supporting efficient batch production. The 15° relief angle offers clearance behind the cutting edge to reduce rubbing and heat generation, helping to preserve surface finish and insert life during continuous cycles. For best results, match the cutting grade and any optional chipformer to the workpiece material and machining strategy.

Practical guidance for selection and use

When integrating this insert into a production cell, note that the ISO code L2020K and the L2 size designation determine seat fit and allowable cutting parameters; ensure the chosen holder matches these dimensions. The plate’s rhomboid form allows several indexing options, which is economically advantageous for shops seeking long edge life and straightforward stock control. For tailored recommendations on holder pairing, cutting data or grade selection, technical consultation is available to ensure process stability and repeatable results.

For application advice or to procure Tungaloy turning inserts such as the DDJNL2020K, contact Metav Werkzeuge for expert consultation or to place an order via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6802935
• SKU: 6802935-Tungaloy
• Manufacturer SKU: TUN6802935
• Model series: ISO-Drehwendeschneidplatten
• Material: Cemented carbide
• Designation: DDJNL2020K
• Manufacturer: Tungaloy

Core technical data

• Plate thickness: 2.38 mm
• Relief angle: 15°
• Included angle: 55°
• Size designation: L2

Special features

• Rhomboid plate form
• Without hole
• Without chipbreaker
• ISO designation: L2020K
• Suitable for external and internal turning
• Compatibility depends on holder form, relief angle, tolerance class, fastening, size and thickness

FAQ

What turning operations is this insert suitable for?
The DDJNL2020K insert is designed for both external and internal turning; its rhomboid shape and ISO dimensions support a range of commonplace lathe tasks.

What does the ISO code L2020K indicate?
The ISO designation L2020K refers to the insert’s standardised family and form; for this plate the code helps identify the correct holder seat, size and clamping requirements.

How does the 15° relief angle influence machining?
A 15° relief angle provides clearance behind the cutting edge to reduce rubbing and heat build‑up, contributing to improved surface finish and consistent cutting performance.

Is a chipbreaker supplied with this insert?
This specific variant is supplied without a chipbreaker; for enhanced chip control select an insert version that includes an appropriate chipformer.

Which holder should be used with this insert?
Holder selection must match the insert’s form, relief angle, tolerance class, fastening method, size (L2) and thickness (2.38 mm) to ensure secure clamping and process stability.

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.