P4841P-4R-A57 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKP25S grade for extended tool life and stable chip formation in steel and cast iron machining; the optimised 4R‑A57 chipformer increases process reliability while reducing rework. Order the insert directly via Metav Werkzeuge or ask the consultants for tailored recommendations.

P4841P-4R-A57 WKP25S drilling/boring indexable insert – Tiger·tec Silver (steel, cast iron) by Walter Tools

The P4841P-4R-A57 WKP25S is a coated carbide insert designed for drilling and boring applications, delivering consistent chip control and durable cutting performance in steel and cast iron.

• Tiger·tec Silver coating for extended tool life
• WKP25S grade for robust wear resistance
• Optimised 4R‑A57 chipformer for stable chips
• Designed for steel (P) and cast iron (K)

Greater productivity through predictable performance

The combination of Tiger·tec Silver surface technology and the WKP25S grade provides a clear productivity advantage: longer edge life and consistent cutting behaviour reduce tool changes and downtime. The result is improved component throughput and fewer interruptions in series production. For operations where reproducible results matter, the insert’s measured balance of wear resistance and toughness supports repeatable hole quality and reduced scrap rates.

Reliable chip control for safer, faster machining

The 4R‑A57 chipformer is engineered to shape and evacuate chips reliably during drilling and boring, which lowers the risk of clogging and tool damage. Stable chip formation contributes directly to enhanced process stability and better surface finishes, particularly in interrupted-cuts typical of cast components. In practice, the optimised chip geometry shortens cycle times by maintaining cutting efficiency over longer operating periods.

Material-focused design for steel and cast iron

This insert is intended for the ISO material groups P (steel) and K (cast iron), making it suitable for a wide range of unalloyed and alloyed steels as well as abrasive cast materials. The coated cemented carbide substrate withstands the thermal and mechanical demands of these groups, giving a dependable balance between wear resistance and toughness. For workshops facing mixed production runs, the grade reduces tool complexity by covering both principal material types with one insert solution.

Practical benefits for workshop integration

Compatibility with standard drilling and boring tool holders means the insert can be integrated into existing toolsets without major retrofitting. The stable cutting edge reduces the need for frequent inspections, while the predictable wear behaviour simplifies tooling inventory planning. For engineering teams seeking measurable process improvements, the insert supports a rational approach to cost-per-hole and lifecycle management.

For high-productivity drilling and boring in steel and cast iron with Walter Tools Tiger·tec Silver inserts, contact Metav Werkzeuge for expert advice and availability at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: P4841P-4R-A57-WKP25S-WALTER
• Name: Bohr-/Aufbohrwendeschneidplatte P4841P-4R-A57 WKP25S Walter Tools
• Type: Bohr-/Aufbohrwendeschneidplatte (drilling/boring indexable insert)
• Grade: WKP25S
• Series: Tiger·tec Silver
• Manufacturer: Walter Tools
• ISO designation: P4841P-4R-A57 WKP25S

Facts

• Material groups: P / K
• Main applications: Steel, Cast iron
• Chipformer: 4R-A57
• Geometry designation: P4841P-4R-A57

Special features

• Coated cemented carbide grade (beschichtetes Hartmetall)
• Optimised chipformer for stable chips
• High process stability for drilling/boring
• Broad material coverage for steel and cast iron

FAQ

Which materials is this insert suitable for?
The P4841P-4R-A57 WKP25S insert from Walter Tools is suitable for ISO groups P (steel) and K (cast iron), covering unalloyed and alloyed steels as well as abrasive cast materials.

What is the advantage of the Tiger·tec Silver coating?
Tiger·tec Silver on the WKP25S grade improves edge stability and wear resistance, which extends service life and reduces the frequency of insert changes in demanding drilling operations.

How does the 4R‑A57 chipformer affect machining?
The 4R‑A57 chipformer promotes controlled chip breakage and evacuation, enhancing process stability and reducing the risk of chip-related interruptions during drilling or boring.

Can this insert be used in existing tool holders?
The insert is designed for common drilling and boring applications and is compatible with standard indexable insert holders intended for the corresponding ISO geometry.

Manufacturer: Walter Tools; Headquarters: Tübingen, Germany