P4840P-4R-E57 WKP35S Wendeplatten - Walter Tools Technical data: - coating: Tiger·tec Silver (coated carbide) - material: P / K - application: machining of steel and cast iron - suitable for: steel - suitable for: cast iron

Take advantage of the combination of Tiger·tec Silver coating, the WKP35S grade and the 4R-E57 chipbreaker for reliable machining of steel and cast iron; order directly via Metav Werkzeuge or consult the technical team for process adaptation.

P4840P-4R-E57 WKP35S Drill/bore indexable insert for steel and cast iron — Walter Tools

P4840P-4R-E57 WKP35S is an indexable insert designed for drilling and bore enlargement applications in steel and cast iron, combining a Tiger·tec Silver coating with a dedicated 4R-E57 chipbreaker for stable chip formation.

• Tiger·tec Silver coating technology
• Optimised chip control 4R-E57
• Suitable for steel and cast iron
• High wear resistance and process security

Proven coating technology for extended tool life and consistent results

The combination of the Tiger·tec Silver coating and the WKP35S grade provides high wear resistance and consistent performance when machining abrasive or heat-generating materials. The coating reduces adhesion and improves heat management, which leads to longer tool life and fewer interruptions in production. For workshops requiring dependable repeatability, this coated carbide solution supports sustained cutting under typical steel and cast iron conditions without frequent indexable insert changes.

Geometry and chip control that stabilise the machining process

The specific chipbreaker geometry 4R-E57 is engineered to produce predictable, short chips in cast iron and controlled chips in steel, reducing the risk of chip entanglement and improving surface integrity. This optimised chip control facilitates safer automatic chip evacuation and helps to maintain stable cutting forces, which in turn enhances hole quality and dimensional consistency during drilling and bore-enlargement operations.

Application-focused benefits for production efficiency

Designed for use in demanding production environments, the insert’s combination of grade WKP35S and Tiger·tec Silver technology enables higher cutting speeds with reliable edge stability. The result is improved productivity and fewer tool indices per component batch. Machine shop planners will appreciate the predictable wear behaviour and the potential for longer uninterrupted running times, supporting leaner setups and reduced tooling logistics.

Process guidance and compatibility information

The insert is certified for the ISO material classes P (steel) and K (cast iron), indicating suitability across common ferrous workpieces encountered in general machining. When selecting cutting data, consideration of material hardness and alloying is important; matching feed and speed to the chosen grade ensures the WKP35S performs as intended. For specific machining parameters or holder recommendations, consulting the technical advisors at Metav Werkzeuge can help to define optimal cutting conditions.

For production teams seeking enhanced wear resistance and reliable chip control with Walter Tools’ Tiger·tec Silver inserts, contact Metav Werkzeuge for tailored advice and procurement: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• SKU: P4840P-4R-E57-WKP35S-WALTER
• ISO designation: P4840P-4R-E57 WKP35S
• Product type: Drill/bore indexable insert
• Series: Tiger·tec Silver
• Grade: WKP35S
• Chipbreaker: 4R-E57
• Material class: P / K
• Manufacturer: Walter Tools

Facts

• ISO code and designation: P4840P-4R-E57 WKP35S
• Series name: Tiger·tec Silver
• Chipbreaker designation: 4R-E57

Special features

• Coating: Tiger·tec Silver (coated carbide technology)
• Base material: coated cemented carbide
• Applicable materials: steel, cast iron
• Typical applications: drilling and bore enlargement (indexable insert)

FAQ

Which materials is this insert intended for?
The insert is intended primarily for steel (ISO group P) and cast iron (ISO group K); the WKP35S grade and Tiger·tec Silver coating are tailored to these material classes.

What does the 4R-E57 chipbreaker deliver in practice?
The 4R-E57 geometry provides controlled chip formation that improves chip evacuation and surface quality during drilling and bore-enlargement operations with steel and cast iron.

Is this a coated carbide grade and what are the advantages?
Yes, WKP35S is a coated cemented carbide grade within the Tiger·tec Silver range; advantages include enhanced wear resistance, better heat management and improved edge life under typical machining conditions.

Can this insert be used for high-speed machining?
The combination of Tiger·tec Silver and WKP35S supports productive cutting regimes; suitable cutting speeds depend on the specific workpiece and machine setup, so refer to process guidelines for optimisation.

What is the full product designation and SKU for ordering?
The full ISO designation is P4840P-4R-E57 WKP35S, and the SKU is P4840P-4R-E57-WKP35S-WALTER for procurement and inventory purposes.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for clarification purposes only; there is no affiliation between Metav Werkzeuge and the mentioned brands. The offered item is an original factory-new product of the stated manufacturer.