P2840S-5N-E77 WNN15 Wendeplatten - Walter Tools

Take advantage of the combination of coated cemented carbide robustness, the 5N-E77 chipbreaker for controlled chip formation and the proven Walter series design for reliable indexable drilling operations; order the insert directly via Metav Werkzeuge or consult our technical advisors for application matching.

P2840S-5N-E77 WNN15 – Indexable drilling/reaming insert with 5N-E77 chipbreaker by Walter Tools

The P2840S-5N-E77 WNN15 is an indexable insert engineered for metal‑cutting applications, offering a coated cemented carbide grade for improved wear resistance and a dedicated chipbreaker for stable chip control.

• Coated cemented carbide grade WNN15
• Chipbreaker 5N-E77 for stable chip control
• Compatible with indexable drilling systems
• Walter open-series carbide grade

Consistent chip control for uninterrupted production

The integrated chipbreaker 5N-E77 is designed to produce compact, manageable chips that reduce the risk of clogging and interruptions during drilling and reaming cycles. By promoting predictable chip formation, the insert helps to maintain higher average cutting speeds and reduces the need for frequent operator intervention. The WNN15 grade, a coated cemented carbide, contributes to wear resistance and consistent edge behaviour, which together support longer tool indices and fewer tool changes. For workshop managers and production planners, these characteristics translate into steadier cycle times and improved machine utilisation without complex process changes.

Precision fit and fast indexation to lower downtime

The geometry indicated by P2840S-5N-E77 is tailored for indexable drilling systems that demand repeatable seating and secure clamping of the insert. A precise fit ensures constant cutting geometry after each indexation, which reduces setup variability and simplifies tool life monitoring. The result is improved repeatability in hole quality and dimensional stability across batches. Because the insert is designed for indexable holders, replacement is quick and safe, minimising machine idle time and supporting efficient shift handovers in high‑throughput environments.

Material guidance and application notes for safe selection

The WNN15 series represents a coated cemented carbide class intended for a wide processing spectrum; however, material suitability should be verified against the specific product matrix before selection. Coated carbide typically offers enhanced substrate protection and is effective at medium to higher cutting speeds, supporting extended cutting intervals and improved surface finish where appropriate. For applications where the material, hardness or process demands are uncertain, refer to the manufacturer’s product matrix or contact Metav Werkzeuge for tailored recommendations to match the insert to the workpiece and holder combination.

For tailored advice on the optimal holder, process parameters and to procure the P2840S-5N-E77 WNN15 directly through Metav Werkzeuge, contact the Metav technical team at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: P2840S-5N-E77-WNN15-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte P2840S-5N-E77 WNN15 Walter Tools
• Product type: Bohr-/Aufbohrwendeschneidplatte
• Manufacturer: Walter Tools

Core data

• Grade: WNN15
• Chipbreaker: 5N-E77
• ISO designation: P2840S-5N-E77 WNN15
• UID: P2840S-5N-E77-WNN15-WALTER

Special features

• Schneidstoffklasse: beschichtetes Hartmetall (coated cemented carbide)
• Series: Walter Schneidstoffsorte - Serie offen
• Material specification: Katalogabhängig
• Sorteneinsatz: Werkstoffeignung anhand der konkreten Produktmatrix prüfen

FAQ

What advantages does the WNN15 grade bring to drilling operations?
The WNN15 grade combines a coated cemented carbide substrate with tailored wear behaviour to support longer tool life and consistent cutting-edge performance in many drilling scenarios; suitability for specific materials should be confirmed via the product matrix.

How does the 5N-E77 chipbreaker affect machining performance?
The 5N-E77 chipbreaker promotes compact, controllable chips that reduce clogging, improve evacuation and help maintain steady cycle times during indexable drilling and reaming operations with the P2840S-5N-E77 geometry.

Is the insert compatible with common indexable drilling systems?
The geometry and designation P2840S-5N-E77 indicate compatibility with holders designed for this insert form; correct holder matching and clamping torque are essential for achieving the stated repeatability and hole quality.

How can it be confirmed that this insert fits a particular workpiece material?
Check the manufacturer’s product matrix and machining recommendations; the P2840S-5N-E77 WNN15 insert should be evaluated against workpiece material, required surface finish and cutting parameters prior to selection.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Walter Tools: The Walter AG (marketed as Walter Tools) with headquarters in Tübingen is among the world’s leading manufacturers of precision metal‑cutting tools and is part of the Swedish Sandvik group. Protected trademarks and product names are the property of their respective owners and are used here for explanation only. There is no affiliation between our company and the brands mentioned. The item offered is an original, factory‑new product of the manufacturer.