P4840C-8R-F57 WKP35S Wendeplatten - Walter Tools

Benefit from the Tiger‑tec Silver coating and the WKP35S grade for extended tool life and consistent edge stability; the 8R‑F57 chipformer secures controlled chip flow for efficient material removal. Combine long service intervals with broad applicability for Stahl and Gusseisen machining. Order the insert directly via Metav Werkzeuge or consult our specialists for application advice.

P4840C-8R-F57 WKP35S — Drilling/Boring Indexable Insert, Tiger‑tec Silver, Walter Tools

The P4840C-8R-F57 WKP35S is a coated indexable insert designed for drilling and boring tasks, optimised for productive machining of Stahl and Gusseisen in industrial CNC operations

• Tiger‑tec Silver coating for long service life
• WKP35S grade optimised for mixed applications
• 8R‑F57 chipformer for stable chip control
• Suitable for drilling and boring indexable systems

Greater productivity for Stahl and Gusseisen

The Tiger‑tec Silver series combines a coated carbide substrate with an application‑focused microstructure, delivering improved wear resistance and predictable flank behaviour when machining Stahl and Gusseisen. This results in fewer tool changes and higher spindle utilisation on serial jobs. The grade's chemistry and coating architecture are tuned for the thermal and abrasive conditions typical of P and K material groups, so operators achieve reliable cutting performance without frequent parameter adjustments.

Stable chip control and repeatable edge life

Thanks to the 8R‑F57 chipformer, this indexable plate ensures consistent chip fragmentation and evacuation, reducing the risk of chatter and tool breakage in deep or interrupted cuts. The coated grade WKP35S supports a stable cutting edge under varied cutting speeds, which means longer time between indexings and a lower total cost per hole. For tool programmers, predictable chip behaviour simplifies cycle time estimation and reduces scrap rates in high‑mix production.

Practical application and integration benefits

The insert is supplied as a standard ISO designation and fits common drilling/boring toolholders, enabling quick retrofitting into existing tool assemblies. The insert's geometry supports both roughing and finishing passes when process parameters are set according to workpiece hardness and coolant strategy. For complex setups, technical documentation and cutting data are available to assist in selecting feeds and speeds that match machine rigidity and clamping conditions, ensuring consistent surface integrity and dimensional control.

Contact Metav Werkzeuge today to discuss Walter Tools Tiger‑tec Silver inserts and confirm suitability for specific Stahl and Gusseisen applications

Technical data

• SKU: P4840C-8R-F57-WKP35S-WALTER
• Designation: P4840C-8R-F57 WKP35S
• Type: Drilling/boring indexable insert
• Series: Tiger‑tec Silver
• Grade: WKP35S
• Chipformer: 8R‑F57
• Material group: P / K (Stahl / Gusseisen)
• Brand: Walter Tools

Data

• Compatible material groups: P, K
• Coating technology: Tiger‑tec Silver
• Cutting concept: Coated carbide grade with engineered microstructure

Special features

• Suitable for Stahl machining
• Suitable for Gusseisen machining
• Coated carbide (WKP35S)
• Optimised chip control via 8R‑F57
• Designed for drilling and boring operations

FAQ

Which materials are suitable for this insert?
The P4840C-8R-F57 WKP35S is specified for machining Stahl (P) and Gusseisen (K), with the grade and coating engineered for those ISO material groups.

How does the Tiger‑tec Silver coating improve performance?
Tiger‑tec Silver provides enhanced wear resistance and thermal stability, so the WKP35S grade maintains a sharper cutting edge longer under typical drilling and boring loads.

What benefit does the 8R‑F57 chipformer offer in practice?
The 8R‑F57 geometry produces consistent chip breaking and evacuation, reducing the chance of chip re-cutting and supporting stable surface finishes during deep or interrupted cuts.

Can the insert be used for both roughing and finishing passes?
Yes, the insert's coated carbide chemistry and chipformer allow acceptable performance in both roughing and finishing when cutting parameters are matched to machine rigidity and workpiece material.

Is the insert compatible with standard drilling/boring toolholders?
The insert follows ISO designation conventions and is intended for integration into common drilling and boring indexable systems; toolholder compatibility should be checked against the ISO designation.

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

Protected trademarks and product names are the property of their respective owners. Walter Tools and Tiger‑tec Silver are mentioned solely for explanatory purposes; there is no affiliation between Metav Werkzeuge and the manufacturers beyond the sale of original, factory‑new products.