P2840S-3N-E77 WNN15 Wendeplatten - Walter Tools

Take advantage of the WNN15 coated carbide grade and the 3N-E77 chipbreaker for stable chip control and extended tool life; order the insert via Metav Werkzeuge or consult our technical team for suitability and throughput optimisation

P2840S-3N-E77 WNN15 indexable drilling/reaming insert by Walter Tools

The P2840S-3N-E77 WNN15 is an indexable insert designed for productive drilling and boring operations, combining a coated cemented carbide grade and a dedicated chipbreaker for industrial metalcutting applications

• Coated cemented carbide grade WNN15
• Precision chipbreaker 3N-E77
• Designed for drilling and boring operations
• Walter Schneidstoffsorte - Serie offen

High productivity through optimised grade and chip control

The combination of the WNN15 grade and the 3N-E77 chipbreaker delivers stable chip formation under variable cutting conditions, which directly reduces downtime for chip clearing and tool handling. The coated cemented carbide composition provides a balance between wear resistance and toughness; this improves tool life while preserving drilling performance. For production environments seeking a reliable insert for repeated cycles, these characteristics translate into more consistent hole quality and fewer tool changes, supporting higher overall throughput.

Consistent surface quality and process security in drilling

The insert’s geometry and chipbreaker are configured to promote predictable chip flow and reduced cutting forces, resulting in enhanced surface finish and dimensional stability during boring or reaming sequences. The insert functions as an indexable drill insert, enabling fast indexing and reduced unit costs compared with monolithic tools. Where control of chip evacuation and repeatable hole tolerance are priorities, the design reduces vibration and supports constant machining parameters, which is particularly beneficial in batch production and CNC cell integration.

Practical application guidance and material compatibility

This insert belongs to the Walter Schneidstoffsorte - Serie offen and is a coated cemented carbide product; specific workpiece suitability should be verified against the manufacturer’s product matrix before use. The grade is intended for general productive metalcutting; verify the detailed material recommendations and cutting data in the technical documentation to match feed and speed to the application. For process optimisation and to ensure the correct insert choice for specific alloys or component geometries, consult Metav Werkzeuge’s advisors or the product matrix provided by the tool manufacturer.

Contact Metav Werkzeuge to discuss the suitability of the Walter Tools WNN15 insert for current applications, request cutting data, or reserve stock for your next production run

Technical data

• SKU: P2840S-3N-E77-WNN15-WALTER
• Article designation: P2840S-3N-E77 WNN15
• Product type: Indexable drilling/reaming insert
• Manufacturer: Walter Tools

Facts

• Grade: WNN15
• Chipbreaker: 3N-E77
• Series: Walter Schneidstoffsorte - Serie offen
• Material: Catalogue dependent

Special features

• Coated cemented carbide
• Designed for drilling and boring operations
• Stable chip formation and predictable chip flow
• Fast indexing for reduced machine downtime

FAQ

What materials is this insert intended for?
The WNN15 grade is a coated cemented carbide intended for a broad range of metalcutting tasks; confirm specific material suitability for the P2840S-3N-E77 WNN15 in the manufacturer’s product matrix before application.

How does the 3N-E77 chipbreaker improve drilling?
The 3N-E77 chipbreaker promotes controlled chip fragmentation and evacuation during drilling and boring, which reduces interruption for chip clearing and supports consistent hole quality with the P2840S-3N-E77 WNN15 insert.

Can this insert be indexed during production to extend life?
Yes, as an indexable drilling insert the design allows for rapid indexing to restore cutting edges, improving overall tool life and reducing replacement frequency.

Where to find recommended cutting data for the insert?
Recommended cutting parameters for the insert are provided in the tool documentation and product matrix; Metav Werkzeuge can assist in transferring these recommendations to the specific machining setup.

Manufacturer: Walter Tools / Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

Protected trademarks and brand names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanation only and do not indicate any affiliation between Metav Werkzeuge and the brand owner. The offered item is an original, factory-new product of the manufacturer.