P4840P-6R-E67 WKP25S Wendeplatten - Walter Tools Technical details: - coating: Tiger-tec Silver - material: coated carbide - suitable for steel: yes - suitable for cast iron: yes - main application: drilling and boring inserts

Take advantage of the combination of Tiger-tec Silver coating and an optimised 6R‑E67 chipbreaker for reliable chip control and prolonged tool life; benefit from consistent machining in steel and cast iron and contact Metav Werkzeuge for application advice or to order the insert directly.

P4840P-6R-E67 WKP25S indexable insert for drilling/boring, Tiger‑tec Silver coating, Walter Tools

P4840P-6R-E67 WKP25S is a coated carbide indexable insert designed for drilling and enlarging operations in steel and cast iron, combining Tiger‑tec Silver technology with a dedicated chipbreaker for stable production

• Insert »P4840P-6R-E67 WKP25S« by Walter Tools
• Tiger‑tec Silver coating for improved wear resistance
• Optimised 6R‑E67 chipbreaker for controlled chips
• Suitable for steel and cast iron machining

Longer tool life through modern coating technology

The Tiger‑tec Silver coating, paired with the WKP25S grade, provides a robust wear barrier that extends tool life under the thermal and mechanical loads typical of drilling and enlarging processes. Coated carbide substrates reduce abrasive wear and increase resistance to flank and crater wear, which results in fewer tool changes and more predictable production cycles. For shops focused on uptime, this translates into measurable productivity gains and lower per‑hole tooling costs. The insert’s construction supports stable cutting conditions, maintaining a reliable cutting edge over repeated cycles and reducing the frequency of regrinding or replacement.

Predictable chips and safer machining in demanding materials

The 6R‑E67 chipbreaker is engineered to produce short, controlled chips when machining both steel and cast iron, improving evacuation from the hole and reducing the risk of chip intertwining or tool damage. A chipbreaker shapes the swarf so that it breaks into manageable segments, helping coolant and chip conveyors to work more effectively and minimising manual intervention. This is particularly beneficial in stacked or interrupted cuts where uncontrolled chips can compromise surface quality or tool life. The combination of chip geometry and coated substrate supports consistent cutting forces and enhances component quality.

Productivity and consistent surface results for production environments

Designed for repeatable performance, the insert delivers improved surface finish and dimensional consistency in serial operations. The graded properties of WKP25S allow stable performance across varying cutting speeds, helping to maintain tolerances and reduce scrap rates. Integration into established toolholders for drilling and boring yields straightforward toolset planning; the insert supports efficient process windows and quick index changes, contributing to overall productivity. For precision shops and jobbers alike, the result is a dependable machining solution that balances life and performance.

Contact Metav Werkzeuge for tailored recommendations on Walter Tools Tiger‑tec Silver inserts and application support — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: P4840P-6R-E67-WKP25S-WALTER
• Name: P4840P-6R-E67 WKP25S
• Manufacturer: Walter Tools
• Product type: Bohr-/Aufbohrwendeschneidplatte
• Series: Tiger‑tec Silver

Facts

• Material group: P / K
• Chipbreaker: 6R‑E67
• Grade: WKP25S
• Suitable materials: Steel, Cast iron

Special features

• Coated carbide grade (Tiger‑tec Silver)
• Optimised chipformer for controlled chips
• Intended for drilling and enlarging applications
• Stable wear behaviour for serial machining

FAQ

What materials is this insert suited for?
The P4840P‑6R‑E67 WKP25S insert from Walter Tools is specified for machining steel (P) and cast iron (K), matching the ISO material groups for which the grade and geometry are designed.

How does the 6R‑E67 chipbreaker improve machining?
The 6R‑E67 chipbreaker shapes and breaks chips into short segments, improving evacuation during drilling and enlarging and reducing chip‑related interruptions when using the Walter Tools indexable insert.

What benefit does the Tiger‑tec Silver coating bring?
The Tiger‑tec Silver coating on the WKP25S grade increases wear resistance and thermal stability, extending tool life and supporting consistent performance in production environments.

Is this insert suitable for serial production and repeatability?
Yes — the Walter Tools P4840P‑6R‑E67 WKP25S package is engineered to provide repeatable cutting performance and consistent surface finish, making it appropriate for serial machining tasks.

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

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