P4840P-7R-F57 WKP35S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKP35S grade for extended tool life and consistent chip control in steel and cast-iron drilling operations; order or request tailored advice via Metav Werkzeuge for seamless tool integration and process reliability.

P4840P-7R-F57 WKP35S — drill/reamer indexable insert for steel and cast iron | Walter Tools

A P4840P-7R-F57 WKP35S indexable insert engineered for high-productivity drilling and boring in steel and cast iron applications.

• Tiger·tec Silver coating for long tool life
• WKP35S optimised for steel and cast iron
• 7R‑F57 chipbreaker for controlled chips
• Coated carbide grade for stable productivity

Durable coating that extends productive runtime

The Tiger·tec Silver technology provides a multi-layer coating designed to resist abrasive and adhesive wear, which directly translates into longer intervals between tool changes and fewer unscheduled interruptions. For production environments where uptime and repeatability matter, the coated carbide substrate gives a measurable improvement in tool life and process stability. This means fewer indexable insert replacements per production run, reduced tool inventory complexity and a clearer cost-per-part calculation for operations working predominantly with steel and cast iron.

Controlled chip formation improves safety and cycle time

The 7R‑F57 chipbreaker geometry was developed to promote predictable chip shapes and breakage behaviour during drilling and boring. In practice, this leads to easier chip evacuation, reduced risk of entanglement and more consistent surface quality on the machined bore. For operators and programmers, predictable chip control reduces machine downtime caused by chip jams and simplifies coolant and cycle-time optimisation, ultimately improving both safety and throughput on CNC centres.

Reliable performance across steel and cast-iron families

The WKP35S grade is tuned for ISO groups P (steel) and K (cast iron), accommodating the thermal and mechanical demands typical of these materials. For steel, the grade manages heat and continuous chips; for cast iron, it withstands abrasive wear and the tendency for short, brittle chips. This cross-material capability reduces the need for multiple specialised grades, enabling more efficient tool selection and fewer changeovers while maintaining consistent results across mixed production batches.

Seamless integration and predictable results in production

Designed as a direct fit for drilling and reaming toolholders, the insert’s designation and geometry align with common holder standards to facilitate quick implementation. The combination of a coated carbide base and the Tiger·tec Silver surface treatment provides a balance between wear resistance and edge stability, supporting tighter tolerances and reliable dimensional repeatability. For procurement and process engineering teams, this results in easier qualification, reproducible surface finishes and a clear basis for productivity calculations when comparing cutting tools across tool families.

For integration support or to specify the correct P4840P-7R-F57 WKP35S insert for a defined application, contact Metav Werkzeuge for expert guidance and ordering assistance at info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• SKU: P4840P-7R-F57-WKP35S-WALTER
• Article designation: P4840P-7R-F57 WKP35S
• Product type: Bohr-/Aufbohrwendeschneidplatte
• Manufacturer: Walter Tools

Core data

• Grade: WKP35S
• Series: Tiger·tec Silver
• Chipbreaker: 7R-F57
• Material application: P (steel), K (cast iron)

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Material composition: P / K suitability
• Typical applications: high-productivity drilling and boring
• Origin SKU: P4840P-7R-F57-WKP35S-WALTER

FAQ

What materials is this insert suitable for?
The P4840P-7R-F57 WKP35S insert is specified for ISO groups P and K, which cover steel and cast iron machining respectively.

How does the Tiger·tec Silver coating benefit production?
Tiger·tec Silver on this Walter Tools insert improves wear resistance and edge stability, resulting in longer tool life and more consistent cycle times in drilling and boring operations.

What advantage does the 7R‑F57 chipbreaker offer?
The 7R‑F57 geometry supports controlled chip formation and evacuation, reducing the likelihood of chip-related interruptions and improving surface quality.

Can the WKP35S grade be used for mixed batches of steel and cast iron?
Yes, the WKP35S grade was developed to perform reliably across both steel and cast-iron workpieces, minimising the need for frequent grade changes.

Is the insert compatible with standard drilling toolholders?
The designation P4840P-7R-F57 indicates standardised geometry for drilling/boring systems; holders designed for this insert family will accept it for straightforward integration.

Manufacturer: Walter Tools

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