P4840C-6R-E77 WN15 Wendeplatten - Walter Tools

Combine cost-efficiency with the robustness of an uncoated carbide WN15 grade and the controlled-chip behaviour of the 6R-E77 chipbreaker for stable hole quality and predictable tool life; order directly via Metav Werkzeuge or consult our specialists for application advice.

P4840C-6R-E77 WN15 — Drilling / bore-enlargement indexable insert, uncoated carbide, 6R-E77 (Walter Tools)

A P4840C-6R-E77 WN15 indexable insert engineered for drilling and bore-enlargement tasks, offering predictable chip formation and straightforward inventory coding.

• Uncoated carbide grade WN15
• 6R-E77 chipbreaker for controlled chips
• Designed for drilling and bore-enlargement

Consistent chip control for uninterrupted production

The combination of WN15 and an uncoated carbide substrate is tuned for economical performance in general machining; the 6R-E77 chipbreaker actively shapes chips to reduce re-cutting and minimise thread-up in bores. As an indexable insert, the geometry provides repeatable cutting angles and a stable cutting edge, which translates into fewer tool changes and steadier cycle times. For non-specialist planners, the term chipbreaker simply means a designed groove or edge that breaks chips into manageable lengths, reducing clogging and easing swarf evacuation.

Optimised for efficient drilling and bore-enlargement operations

Built for drilling and bore-enlargement, this insert supports efficient material removal while maintaining bore integrity and surface finish. The product documentation advises checking the product matrix for workpiece compatibility; this short compatibility check helps to match feed and speed ranges to the material at hand and avoids trial-and-error during setup. The result is a pragmatic increase in throughput and fewer aborted operations, which benefits both job shops and production lines aiming for consistent component quality.

Simplified logistics and predictable procurement

Marked with the standard designation P4840C-6R-E77, the insert simplifies ordering and stock control across maintenance and production teams. The open Walter series naming supports easy cross-referencing against tooling system catalogues, while the uncoated grade reduces complexity where specialised coatings are unnecessary. If uncertainty remains about holder compatibility or the ideal operating window, Metav Werkzeuge can supply the necessary product references and advise on integration into existing toolholders and machine setups.

Contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored application advice, availability and compatibility checks for the P4840C-6R-E77 WN15 from Walter Tools

Technical data

• Article number: P4840C-6R-E77-WN15-WALTER
• Article name: Bohr-/Aufbohrwendeschneidplatte P4840C-6R-E77 WN15 Walter Tools
• Product type: Drilling / bore-enlargement indexable insert
• Manufacturer: Walter Tools
• Grade: WN15
• Series: Walter Schneidstoffsorte - Serie offen
• Chipbreaker: 6R-E77
• Designation (ISO): P4840C-6R-E77 WN15
• Designation (without grade): P4840C-6R-E77
• Material info: Katalogabhängig
• UID: P4840C-6R-E77-WN15-WALTER

Facts

• Designation code: P4840C-6R-E77
• Chipbreaker code: 6R-E77
• Grade code: WN15
• SKU: P4840C-6R-E77-WN15-WALTER

Special features

• Uncoated carbide (WN15)
• Open series Walter grade
• Indexable insert for drilling and bore-enlargement
• Intended for general machining applications; check product matrix for workpiece suitability

FAQ

What materials can this insert machine effectively?
The P4840C-6R-E77 WN15 is an uncoated carbide insert; workpiece suitability should be checked in the product matrix provided for the Walter Tools grade WN15 to confirm whether a specific material is recommended.

Is the chipbreaker suitable for deep-hole drilling?
The 6R-E77 chipbreaker is designed to produce controlled chips and aid evacuation; the effectiveness for deep-hole drilling depends on hole depth, coolant strategy and holder geometry when using the P4840C-6R-E77 insert.

How is the insert identified for reordering?
Reorder using the designation P4840C-6R-E77 WN15 or the SKU P4840C-6R-E77-WN15-WALTER to ensure the same Walter Tools grade and chipbreaker are supplied.

Can the insert be used without a coating?
Yes, WN15 is an uncoated carbide grade; this can be advantageous where coating is unnecessary or when a specific surface interaction is required. Compatibility with the application should be verified via the product matrix.

Does the design support reliable repeatability in production runs?
The standardised geometry and Walter Tools grade provide consistent cutting behaviour and repeatable edge positions, which supports predictable cycle times and easier process control when deploying the insert in production environments.

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

The Walter AG (brand: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned solely for explanatory purposes. There is no connection between our company and the mentioned brands. The offered item is original, factory-new goods from the manufacturer.