P4840P-8R-E57 WKP35S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating, the WKP35S grade and the 8R‑E57 chipbreaker for consistent productivity when machining steel and cast iron; order this component via Metav Werkzeuge or consult the team for application advice.

P4840P-8R-E57 WKP35S drilling/reaming indexable insert – Tiger‑tec Silver coated, for Steel & Cast Iron (Walter Tools)

A P4840P-8R-E57 WKP35S indexable insert engineered for high‑productivity drilling and reaming in ISO groups P and K, combining a Tiger‑tec Silver coating with a dedicated chipbreaker geometry for reliable metalcutting performance

• Tiger‑tec Silver coated carbide
• Grade WKP35S for steel and cast iron
• Chipbreaker 8R‑E57 for controlled chips
• Optimised for drilling and reaming operations

Increase throughput with proven cutting performance

The Tiger‑tec Silver series delivers a balance of wear resistance and toughness that improves tool life in demanding operations. With the WKP35S grade, the insert is tailored for the thermal and mechanical conditions typical when machining steel and cast iron, offering stable cutting edge behaviour and predictable flank wear. The combination of a modern coating system and coated carbide substrate reduces friction at the cutting interface, which translates into longer tool life and fewer interruptions for tool changes, thereby raising machine uptime and lowering unit costs per hole.

Controlled chip formation for safer, faster cycles

The integrated chipbreaker 8R‑E57 geometry is designed to produce short, manageable chips in both ductile and brittle materials, improving evacuation from deep holes and bores. Controlled chip flow reduces the risk of surface damage and tool breakage, supporting higher feed rates and more aggressive cutting parameters where the machine and workholding permit. For operations where chip control is critical, the geometry helps maintain consistent hole quality and contributes to a reliable production rhythm, especially in batch drilling or successive reaming tasks.

Predictable results through ISO‑aligned application

This insert is specified for ISO material groups P (steel) and K (cast iron), which helps programming and process planning across mixed production runs. The clear assignment to these groups simplifies selection for planners and operators and supports stable process windows. Because the grade and coating are engineered for the characteristic heat and abrasion of these materials, operators can expect repeatable dimensional accuracy and surface integrity when machining common steels and cast components under recommended cutting data.

Practical guidance for workshop integration

When integrating the insert into existing toolholders, ensure the seat and clamping match the designation P4840P‑8R‑E57 and that the holder supports the intended coolant and speed regime. The coated carbide substrate benefits from consistent coolant application in many drilling tasks, although exact cutting data should be validated on the specific machine, workpiece and tolerance requirements. The insert’s design supports efficient replacement cycles and reduces set‑up variability, helping maintain steady production quality across shifts.

For tailored process recommendations or to secure the Walter Tools P4840P-8R-E57 WKP35S insert for production use, contact Metav Werkzeuge – phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• SKU: P4840P-8R-E57-WKP35S-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte P4840P-8R-E57 WKP35S Walter Tools
• Product type: Bohr-/Aufbohrwendeschneidplatte (drilling/reaming indexable insert)
• Grade: WKP35S
• Series: Tiger‑tec Silver
• Chipbreaker: 8R‑E57
• Material groups: P / K
• Manufacturer: Walter Tools

Facts

• ISO material groups: P, K
• Suitable materials: Steel, Cast iron
• Designation: P4840P-8R-E57 WKP35S
• Coating technology: Tiger‑tec Silver

Special features

• Coated carbide substrate
• Optimised chip control geometry 8R‑E57
• Application: drilling and reaming operations
• Stable edge performance for serial production
• Brand: Walter Tools

FAQ

What materials is this insert suitable for?
The P4840P‑8R‑E57 WKP35S insert from Walter Tools is specified for ISO groups P and K, making it suitable for machining steel and cast iron.

How does the Tiger‑tec Silver coating benefit machining?
The Tiger‑tec Silver coating on the WKP35S grade reduces friction and improves wear resistance, enabling longer tool life and more consistent cutting forces when used in drilling and reaming applications.

What advantage does the 8R‑E57 chipbreaker offer?
The 8R‑E57 chipbreaker fosters short, controlled chips across ductile and brittle materials, aiding evacuation from holes and supporting higher feed rates with reduced risk of surface damage.

Is this insert compatible with standard P4840P holder types?
The insert uses the P4840P‑8R‑E57 designation and is intended for holders and systems compatible with that geometry; confirmation of holder compatibility is recommended before assembly.

Who manufactured this insert and where can technical data be requested?
This insert is a Walter Tools product; for detailed cutting data or application support, Metav Werkzeuge can provide supplementary information and advice.

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

Trademarks and trade names are the property of their respective owners. Brand names and protected product names are mentioned for explanatory purposes only. There is no affiliation between our company and the brands cited. The offered article is an original, factory‑new product from the manufacturer Walter Tools.