P4840P-5R-E57 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, stable chip formation and broad material compatibility for reliable, productive machining; order the insert directly via Metav Werkzeuge or consult our technical advisors for application support.

P4840P-5R-E57 WKP25S – Drill/Boring Indexable Insert with 5R-E57 Chipbreaker (Walter Tools)

The P4840P-5R-E57 WKP25S is an indexable insert designed for drilling and boring applications, optimised for machining steel and cast iron with a Tiger-tec Silver coated-carbide grade.

• Tiger-tec Silver coated-carbide grade WKP25S
• Chipbreaker type 5R-E57 for controlled chips
• Suitable for ISO P and ISO K materials
• Designed for high process reliability and tool life

Consistent chip control for uninterrupted production

The insert uses the 5R-E57 chipbreaker, engineered to produce predictable, compact chips when machining both steel and cast iron. This geometry reduces the risk of chip jams in drilling and boring operations and supports a steady material flow from the cutting zone. Built on a coated carbide substrate, the grade provides improved wear resistance under the heat and abrasion typical of these material groups. The result is fewer interruptions, simpler chip management in automated processes and a measurable increase in uptime for production runs.

Broad material range with clear application guidelines

Designed for the ISO material groups P (steel) and K (cast iron), the grade WKP25S belongs to the Tiger-tec Silver family and is optimised for the cutting conditions typical of these alloys. The coating technology and carbide substrate work together to balance toughness and hardness: toughness to resist chipping in interrupted cuts and hardness to withstand abrasive cast-iron faces. For process planners this means predictable tool life across a range of steels and grey or nodular cast irons, enabling fewer tool changes and a simplified tool inventory for mixed-production environments.

Economical machining through stability and repeatability

The combination of grade and geometry is aimed at achieving stable chip formation and consistent cutting forces, which translate into reproducible hole quality and longer edge life. Fewer edge failures and consistent performance reduce scrap rates and the need for frequent rework. The insert’s behaviour under load supports higher average productivity per tool, improving the cost-efficiency of the machining cycle. In practice, this leads to lower unit costs and a steadier process window for serial drilling and boring tasks.

Practical advantages for workshop integration

The insert’s specification and ISO designation make it straightforward to match to existing tool holders and drilling systems. The WKP25S grade and the Tiger-tec Silver coating are documented choices for users seeking a balance between wear resistance and process security. Technical teams benefit from the clear assignment to ISO groups P and K, while purchasing and production managers gain from reduced complexity in the tooling portfolio. Where higher cutting speeds or more abrasive cast irons are involved, the coated-carbide technology offers additional margin before wear limits are reached.

For machining projects that require the proven wear resistance of Walter Tools and the process security of Tiger-tec Silver, contact Metav Werkzeuge for order placement and technical guidance

Technical data

• Article number: P4840P-5R-E57-WKP25S-WALTER
• Designation: P4840P-5R-E57 WKP25S
• Series: Tiger-tec Silver
• Grade: WKP25S
• Manufacturer: Walter Tools
• Product type: Drill/boring indexable insert
• Chipbreaker: 5R-E57
• Material group: P / K

Facts

• ISO material groups: P, K
• Coating technology: Tiger-tec Silver
• Carbide type: coated carbide
• SKU: P4840P-5R-E57-WKP25S-WALTER

Special features

• Coated carbide grade optimised for steel and cast iron
• Stable chip formation for drilling and boring
• Enhanced wear resistance and process reliability
• Suited to catalogue-dependent drilling geometries

FAQ

What materials is the insert suitable for?
The insert is suitable for steel (ISO P) and cast iron (ISO K) applications; the WKP25S grade and chipbreaker 5R-E57 are tuned for these material groups.

How does the 5R-E57 chipbreaker affect machining?
The 5R-E57 chipbreaker promotes compact, controllable chips and helps maintain consistent cutting forces during drilling and boring operations for improved process stability.

Is this insert part of a coated-carbide family?
Yes, the grade belongs to the Tiger-tec Silver coated-carbide family, offering a balance of wear resistance and toughness for demanding production use.

Can this insert be used for automated drilling lines?
The controlled chip behaviour and reproducible edge life make the insert appropriate for automated drilling and boring processes where predictable chip evacuation is required.

Does the designation indicate compatibility with specific holders?
The ISO-style designation P4840P-5R-E57 WKP25S allows straightforward matching to compatible drill and boring tool holders; consult toolholder documentation for exact fit.

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

Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns. Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.

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