P4841P-8R-E57 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of the WKP25S grade and Tiger·tec Silver coating for consistent edge life and reliable chip control in demanding steel and cast iron machining; order directly via Metav Werkzeuge or consult product specialists for process data.

P4841P-8R-E57 WKP25S — drill/reamer indexable insert, Tiger·tec Silver (Walter Tools)

The P4841P-8R-E57 WKP25S is a robust drill/reamer indexable insert engineered for productive machining of steel and cast iron, optimised for stable chip formation and repeatable performance.

• Tiger·tec Silver coating for extended tool life
• WKP25S grade optimised for steel and cast iron
• Geometry 8R-E57 for controlled chip formation

Higher productivity through reliable edge behaviour

The combination of Tiger·tec Silver surface technology and the WKP25S carbide grade gives the insert a high resistance to abrasive wear and thermal loading when machining steel and cast iron. The result is fewer tool changes and more machining time per shift, which translates directly into measurable productivity gains. The coating reduces built-up edge tendencies on tougher steels, while the substrate maintains edge stability under continuous cutting conditions.

Predictable chip control and process stability

The 8R-E57 chipbreaker geometry is designed for consistent chip control across typical turning and drilling parameters for P and K material groups. Controlled chips lower the risk of machine interruptions and ease swarf handling, which benefits cycle times and shop-floor safety. In practical terms, shops will observe more consistent surface finishes and reduced downtime caused by erratic chip formation.

Versatile application across steel and cast iron

Rated for the ISO groups P and K, this insert supports a broad range of unalloyed and alloyed steel types as well as various cast iron grades. The specific matching of grade and coating means the cutting system tolerates the heat and chip characteristics typical of these materials, enabling stable cutting at productive feeds and speeds. For less familiar materials or unusual component geometries, reference cutting data from Walter Tools is advisable to select the optimal parameters.

Efficient integration and handling in production

As an indexable component, the insert is intended for quick replacement to minimise machine idle time; its ISO-style designation simplifies cross-referencing with compatible toolholders designed for drilling and bore-widening operations. The design supports standard operational practises in modern CNC shops, allowing effective use in batch production and mixed-series workflows where repeatability and reproducible surface quality are required.

Contact Metav Werkzeuge for tailored cutting data and application advice on Walter Tools Tiger·tec Silver inserts via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: P4841P-8R-E57-WKP25S-WALTER
• Article designation: P4841P-8R-E57 WKP25S
• Product type: drill/reamer indexable insert
• Manufacturer: Walter Tools

Facts

• Grade: WKP25S
• Series: Tiger·tec Silver
• Chipbreaker: 8R-E57
• Material code: P / K

Special features

• Coated cemented carbide
• Suitable for steel and cast iron (ISO P and K)
• Designed for controlled chip formation and long tool life
• Indexable geometry for quick replacement

FAQ

What materials is this insert suited to machine?
The P4841P-8R-E57 WKP25S is designed for machining steel and cast iron, corresponding to ISO material groups P and K.

What benefit does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating improves wear resistance and thermal stability, which helps maintain cutting-edge integrity and extends the effective tool life under typical steel and cast iron cutting conditions.

How does the 8R-E57 geometry affect performance?
The 8R-E57 chipbreaker promotes consistent chip control, reducing the likelihood of irregular chips and contributing to stable machining and improved surface quality.

Is this insert compatible with standard drill/reamer holders?
The insert uses an ISO-style designation intended for compatible drill and bore-widening toolholders; verify the toolholder catalogue for exact seat and clamp compatibility.

Are these inserts reconditionable?
Indexable inserts are generally consumable components; replacement is the common approach when cutting edges reach wear limits, and the design supports rapid change-out to maintain process uptime.

Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik group. Protected trademarks and trade names belong to their respective owners and are mentioned here for explanation only; there is no affiliation implied with our company. The offered item is an original, factory-new product of the manufacturer.