CNMU080508-D57T WKP25S Wendeplatten - Walter Tools

Benefit from the combination of the Tiger‑tec Silver coating, the WKP25S grade and a robust rhombic 80° geometry for productive, wear‑resistant milling of steels and cast irons; order this insert via Metav Werkzeuge or consult their specialists for application support.

CNMU080508-D57T WKP25S milling indexable insert, Tiger‑tec Silver – Walter Tools

The CNMU080508-D57T WKP25S is a rhombic 80° milling indexable insert engineered for reliable machining of steel and cast iron in general milling operations.

• Tiger‑tec Silver coating for extended tool life
• Grade WKP25S optimised for steel and cast iron
• Rhombic 80° shape for versatile milling applications
• 0.8 mm corner radius with 0° negative rake

Achieve higher productivity with advanced coating technology

The combination of the Tiger‑tec Silver surface treatment and the WKP25S carbide grade delivers improved wear resistance and consistent cutting performance under typical milling loads. The coating is designed to reduce abrasive wear and thermal damage during high material removal rates, which translates into longer in‑service intervals and fewer tool changes. For operations focused on throughput, this insert supports steady cutting conditions and contributes to overall shopfloor efficiency.

Geometry engineered for stability and chip control

A rhombic 80° shape gives the insert versatility for both side and face milling, while the 0° negative rake increases edge strength for interrupted cuts and heavy engagement conditions. The built‑in D57T chipbreaker promotes effective chip control, reducing the risk of entangling or long chips and improving surface finish. The 0.8 mm corner radius balances edge robustness with achievable surface quality, making the geometry suitable for general‑purpose milling where both life and workpiece integrity matter.

Clear material scope: Steel and cast iron (ISO P / K)

The insert is specified for ISO material groups P (Steel) and K (Cast iron), meaning the grade is tailored to handle the heat and continuous chips typical when machining steels, as well as the abrasive behaviour and brittle chips encountered with cast irons. This makes the insert a practical choice for mixed production runs or job shops processing both unalloyed and alloyed steels plus cast components, without the need for frequent tool grade changes.

Shopfloor reliability and dimensional consistency

With tolerance class M, the insert meets medium tolerance requirements for secure seating and repeatable performance in standard toolholders. The coded dimensions (plate size 08, thickness code 05) and proven chipformer design support stable cutting over a range of feeds and speeds, contributing to predictable tool life and process stability. For specific cutting data or to confirm compatibility with a given holder, refer to the toolholder manufacturer’s guidelines or contact Metav Werkzeuge for tailored advice.

Contact Metav Werkzeuge for application advice or to secure genuine Walter Tools CNMU080508‑D57T WKP25S inserts with Tiger‑tec Silver coating; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CNMU080508-D57T-WKP25S-WALTER
• Name: CNMU080508-D57T WKP25S
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Grade: WKP25S
• Product type: milling indexable insert
• Execution: U
• SKU: CNMU080508-D57T-WKP25S-WALTER

Numbers / Core technical data

• Corner radius: 0.8 mm
• Free rake: 0° (negative)
• Plate size: 08
• Thickness code: 05
• Tolerance class: M

Designs / Special features

• Plate form: Rhombus 80°
• Chipbreaker: D57T
• Material designation: P / K (Steel / Cast iron)
• Base designation: CNMU080508-D57T
• Series name: Tiger‑tec Silver

FAQ

What materials is this insert suitable for?
The CNMU080508‑D57T WKP25S insert is specified for ISO groups P and K, making it suitable for machining steel and cast iron applications.

How does the D57T chipbreaker affect machining?
The D57T chipbreaker on this indexable insert improves chip formation and evacuation, which helps to maintain stable cutting and a better surface finish in both continuous and interrupted milling.

Is the negative rake suitable for heavy milling?
Yes. The 0° negative rake increases edge strength and is beneficial for heavier milling cuts or interrupted cutting, offering greater resistance to chipping.

What does tolerance class M mean for fit and repeatability?
Tolerance class M indicates medium dimensional tolerance, ensuring predictable seating in standard toolholders and consistent repeatability across indexable inserts.

Can the CNMU080508‑D57T WKP25S be used for mixed production runs?
Yes. The WKP25S grade and Tiger‑tec Silver series are designed to handle a range of steels and cast irons, making this insert practical for mixed production without frequent grade changes.

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

The Walter AG brand (market appearance: Walter Tools) is part of the global group and stands for precision toolmaking and engineering excellence. Protected trademarks and trade names belong to their respective owners and are mentioned for clarification only. There is no affiliation between our company and the trademark owners; the offered item is an original, factory‑new product of the manufacturer.