P4840P-3R-A57 WKP25S Wendeplatten - Walter Tools

Take advantage of the Tiger‑tec Silver coated carbide grade and the 3R‑A57 chipbreaker to achieve stable chip formation and reliable performance in steel and cast iron machining; order the insert directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

P4840P-3R-A57 WKP25S drill/boring indexable insert — Tiger‑tec Silver, for steel and cast iron (Walter Tools)

The P4840P-3R-A57 WKP25S is a Tiger‑tec Silver coated drill/boring indexable insert designed to deliver consistent results in demanding steel and cast iron operations.

• P4840P-3R-A57 WKP25S insert, Tiger‑tec Silver
• Coated carbide grade for steel and cast iron
• 3R‑A57 chipbreaker for stable chip formation
• Optimised for productive drilling and boring

Consistent performance on steel and cast iron

The combination of the Tiger‑tec Silver series and the WKP25S coated carbide grade provides enhanced wear resistance and thermal stability for continuous drilling and boring operations. Designed specifically for the ISO groups P (steel) and K (cast iron), this insert copes with the heat and abrasive conditions typical of such materials. The result is a predictable tool life and fewer unplanned tool changes, which supports efficient production planning and reduced process variability.

Improved chip control and machining security

The 3R‑A57 chipbreaker geometry is engineered to control chip formation and evacuation during cutting. By shaping and breaking chips reliably, this geometry reduces the risk of long, entangling swarf and supports consistent surface finishes in axial and radial drilling passes. In practical terms, stable chip control lowers the likelihood of workpiece damage and simplifies machine handling during high‑volume cycles, benefitting shopfloor safety and throughput.

Productivity through repeatable indexable insert design

As an indexable insert, the component allows quick re-indexing or replacement, restoring cutting performance without complex regrinding. The coated carbide construction provides the mechanical strength needed for drilling and boring while the coating enhances edge protection against abrasive wear. These properties combine to improve process reliability and contribute to higher overall productivity by shortening downtime for tool changes and maintaining cutting accuracy over repeated cycles.

Application guidance and material compatibility

The insert is intended primarily for machining within ISO groups P and K, meaning unalloyed and alloyed steels as well as a range of cast irons. For users less familiar with chipbreaker nomenclature: a chipbreaker modifies the flow and fracture of the swarf to suit the workpiece and cutting parameters. Selection of the WKP25S grade from the Tiger‑tec Silver family supports a wide material range while keeping a focus on process stability and surface integrity in drilling and boring tasks.

Choose the Tiger‑tec Silver grade from Walter Tools for demanding steel and cast iron operations — contact Metav Werkzeuge for tailored technical advice and reliable supply.

Technical data

• Article number: P4840P-3R-A57-WKP25S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte P4840P-3R-A57 WKP25S Walter Tools
• Product type: Drill/boring indexable insert
• Designation: P4840P-3R-A57 WKP25S
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Material grade: P / K

Core specifications

• Applicable ISO groups: P, K

Special features

• Coated carbide (beschichtetes Hartmetall)
• Chipbreaker: 3R‑A57
• Suitable for steel and cast iron machining
• Indexable insert geometry for drilling/boring

FAQ

What materials is this insert suitable for?
The P4840P-3R-A57 WKP25S insert is specified for ISO groups P and K, making it suitable for machining steels and cast irons with the WKP25S Tiger‑tec Silver grade.

How does the 3R‑A57 chipbreaker affect machining?
The 3R‑A57 chipbreaker is designed to control chip formation and evacuation; this reduces long swarf, improves surface quality and aids stable drilling and boring cycles with the P4840P-3R-A57 WKP25S insert.

Is this a coated or uncoated grade?
The WKP25S is a coated carbide grade from the Tiger‑tec Silver series, offering improved wear resistance and thermal stability for continuous operations.

Can this insert be used for reaming or finishing passes?
The geometry and chip control of the insert support drilling and boring tasks; suitability for reaming or fine finishing depends on the machine setup and cutting parameters when using the P4840P-3R-A57 WKP25S insert.

Hersteller: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

The Walter AG (marketed as Walter Tools) is part of the Sandvik group and is recognised as a leading manufacturer of precision metal‑cutting tools. Protected trademarks and trade names are the property of their respective owners. The mention of brand names and trademarks is for explanatory purposes only and does not imply any affiliation between Metav Werkzeuge and the trademark holders. The offered article is an original, factory‑new product of the respective manufacturer.