P4840P-4R-A57 WKP35S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating and the WKP35S grade for reliable tool life and consistent chip control in steel and cast iron machining; order the insert via Metav Werkzeuge or consult the team for application-specific recommendations.

P4840P-4R-A57 WKP35S – Drilling/Boring Indexable Insert for Steel & Cast Iron by Walter Tools

The P4840P-4R-A57 WKP35S is an indexable insert engineered for drilling and bore‑enlargement tasks, offering a balance of wear resistance and controlled chip formation for production environments where process stability matters.

• Tiger‑tec Silver coating for extended life
• WKP35S grade for steel and cast iron
• 4R‑A57 chipbreaker for controlled chips
• Optimised for consistent surface finish

Maximise uptime with predictable tool life and wear resistance

The combination of a Tiger‑tec Silver coating and the WKP35S cemented‑carbide grade provides enhanced resistance to abrasive wear and thermal loading during metal removal. For operations in steel and cast iron, this results in fewer insert changes and more predictable cycle times, supporting continuous production. The coating reduces flank wear and helps maintain cutting geometry under elevated temperatures, which translates directly into higher overall machine utilisation.

Achieve reliable chip control and improved surface quality

The 4R‑A57 chipbreaker geometry is designed to promote short, controllable chips when machining both unalloyed and alloyed steels as well as cast iron. Controlled chip formation reduces the risk of clogging and improves evacuation from deep bores, leading to a consistent surface finish and fewer interruptions for chip clearing. In practice, this means fewer secondary operations and a more efficient downstream workflow.

Broad material capability for flexible shop use

Rated for material groups P (steel) and K (cast iron), this insert supports a wide range of workpiece grades commonly encountered in general and precision engineering. The combination of substrate and coating technology is tailored to handle the typical heat generation and abrasive tendencies of these materials. As a result, one insert type can cover multiple part families, simplifying inventory and streamlining tooling decisions on the shop floor.

Integration into production — simple selection and consistent results

The insert’s ISO designation and chipbreaker make it straightforward to specify for drilling and boring tools that accept indexable inserts. Its predictable wear characteristics and chip behaviour help standardise machining parameters across shifts and operators, supporting process stability and repeatable part quality. When combined with appropriate cutting data, the insert contributes to reduced scrap rates and steady machining output.

For machining operations demanding robust wear resistance and controlled chip evacuation, contact Metav Werkzeuge to specify the Walter Tools P4840P-4R-A57 WKP35S insert and to discuss grade and geometry choices for specific production requirements – eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: P4840P-4R-A57-WKP35S-WALTER
• Article name: P4840P-4R-A57 WKP35S
• Product type: Drilling/Boring indexable insert
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Facts

• Material groups: P / K (steel, cast iron)
• Chipbreaker: 4R‑A57
• Grade: WKP35S
• Designation: P4840P-4R-A57 WKP35S

Special features

• Coating technology: Tiger‑tec Silver
• Substrate: coated cemented carbide
• Main applications: drilling and bore enlargement
• Story trigger: indexable inserts

FAQ

What materials is this insert suitable for?
The P4840P-4R-A57 WKP35S insert from Walter Tools is suitable for machining steel and cast iron, corresponding to ISO material groups P and K.

How does the Tiger‑tec Silver coating improve performance?
The Tiger‑tec Silver coating on the insert reduces abrasive and thermal wear, extending tool life and helping to maintain cutting geometry during demanding drilling and boring cycles.

What benefit does the 4R‑A57 chipbreaker provide?
The 4R‑A57 chipbreaker produces short, controlled chips for efficient evacuation in bore operations, which improves surface finish and reduces interruptions for chip removal.

Can this insert be used across different part families?
Yes, the WKP35S grade and Tiger‑tec Silver technology offer broad applicability across various steels and cast irons, allowing one insert type to serve multiple workpiece families.

Is the insert compatible with standard indexable drilling systems?
The insert’s ISO designation and geometry make it compatible with drilling and boring toolholders designed for P4840P‑type inserts; verify holder compatibility before selecting.

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

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