P4840C-5R-E77 WN15 Wendeplatten - Walter Tools

Take advantage of the combination of stable chip formation with the 5R‑E77 chipformer, robust uncoated carbide in grade WN15, and straightforward integration into drilling and boring toolholders for dependable production runs. Order the insert directly via Metav Werkzeuge or request guidance from our technical consultants for application-specific selection.

P4840C-5R-E77 WN15 — indexable insert for drilling and boring (Walter Tools)

P4840C-5R-E77 WN15 is a purpose-built indexable cutting insert for drilling and bore-enlarging applications, designed to work within toolholder systems for efficient chip control and repeatable performance

• Uncoated carbide grade WN15
• Chipformer geometry 5R‑E77
• For drilling and boring operations
• Walter Tools open-grade series

Consistent cutting performance for drilling and boring

The insert delivers predictable chip control thanks to the 5R‑E77 chipformer, which shapes and breaks swarf reliably during through‑hole and bore‑enlarging operations. As an uncoated carbide grade, WN15 provides a balance between toughness and wear resistance suitable for many standard machining tasks; however, final suitability depends on the specific workpiece material and operating parameters. In practice, the defined geometry supports stable cutting forces and reduced vibration, translating into improved hole quality and longer life of the cutting edge.

Productivity gains through reliable chip formation and handling

A concise geometry like P4840C-5R-E77 focuses on removing material efficiently while preventing long, stringy chips that compromise cycle time and machine uptime. The chipformer’s function is to fracture chips into manageable segments, reducing interruptions for chip clearing and decreasing the risk of re-cutting. This results in higher net productivity on batch runs and less manual intervention at the machine, which is particularly beneficial in production environments where consistent throughput and repeatable results are priorities.

Practical selection advice and application guidance

Selection of the correct grade and insert variant should follow the product matrix and machining strategy: check the match between WN15 and the workpiece material, consider cutting speed and feed to exploit the chipformer, and confirm toolholder compatibility before series production. The insert’s open-grade series offers flexibility for varied workshop needs; for unfamiliar materials or process windows, consult the technical documentation or our consultants to fine‑tune cutting data and maximise tool life.

For tailored machining recommendations on Walter Tools inserts and to confirm the ideal specification for a given application, contact Metav Werkzeuge—our specialists will advise on selection, compatibility and integration into existing tool systems.

Technical data

• Article number: P4840C-5R-E77-WN15-WALTER
• Product: Bohr-/Aufbohrwendeschneidplatte P4840C-5R-E77 WN15
• Brand: Walter Tools
• Material: Katalogabhängig

Core specifications

• Grade: WN15 (uncoated carbide)
• Chipformer: 5R‑E77
• Designation: P4840C-5R-E77 WN15

Special features

• Series: Walter Schneidstoffsorte - Serie offen
• Geometry suited for drilling and boring holders
• Sorteneinsatz: check product matrix for workpiece suitability

FAQ

What material class does this insert belong to?
The P4840C-5R-E77 WN15 insert is produced in an uncoated carbide grade (WN15); please consult the product matrix to confirm suitability for specific workpiece materials.

Is the cutting edge coated?
No, the WN15 designation indicates an uncoated carbide grade, which can be preferable where toughness is required.

What does the 5R‑E77 chipformer do?
The 5R‑E77 chipformer controls and segments chips during drilling and boring, improving chip evacuation and reducing interruptions due to long or entangling swarf.

Which operations is this insert intended for?
This insert is designed for drilling and bore-enlarging applications within compatible toolholders; final use should align with the product matrix and machining parameters.

How to verify if WN15 is right for the workpiece?
Material compatibility must be checked against the manufacturer’s product matrix; the WN15 grade offers general-purpose performance, but confirmation for specific alloys and hardness ranges is recommended.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned for explanation only. There is no connection between our company and the mentioned brands. The offered article is an original, brand‑new product of the manufacturer.