SNMX090408-F57 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKP25S grade for stable, high-productivity milling of steel and cast iron; the square 90° geometry with a 0.8 mm corner radius and chipbreaker F57 promotes predictable chip formation and process reliability. Order directly via Metav Werkzeuge or contact our consultants for application advice.

SNMX090408-F57 WKP25S milling indexable insert – square 90°, 0° negative rake (Walter Tools)

SNMX090408-F57 WKP25S is an indexable milling insert designed for productive machining of steel and cast iron in general milling applications

• Tiger·tec Silver coated carbide
• WKP25S grade for steel and cast iron
• Square 90° geometry with 0.8 mm radius
• Chipbreaker F57 for reliable chip control

Improved productivity through a robust, coated cutting grade

The combination of the Tiger·tec Silver coating and the WKP25S cutting grade delivers a high level of wear resistance and thermal stability, which translates into longer tool life and fewer index changes on the machine. Coated carbide grades such as this are formulated to withstand the heat and abrasive conditions that occur when machining steel and cast iron, so cycle times remain steady and tool cost per part is reduced. The result is a direct improvement in machine uptime and predictable process outputs.

Stable cutting geometry that enhances surface quality

A square 90° insert geometry paired with a 0° negative rake provides a robust cutting edge that tolerates interrupted cuts and shoulder milling. The 0.8 mm corner radius increases edge strength and helps maintain dimensional accuracy on heavy engagement passes. By favouring stability over aggressive shearing, this insert supports consistent surface finish and repeatable tolerances, making it suitable for batch production where reproducibility matters.

Controlled chip formation for safer, more efficient machining

The integrated chipbreaker F57 is engineered to manage the typical swarf behaviour of steel and cast iron, encouraging short, controllable chips that evacuate reliably from the cutting zone. Improved chip control reduces the risk of entanglement and minimises secondary finishing work. For shops aiming to optimise process flows, the combination of geometry and chipbreaker reduces both cycle interruptions and the need for manual clearing, supporting a cleaner, safer working environment.

Application clarity and grade selection for reliable results

The insert’s material compatibility is expressly with workpiece groups P and K according to ISO classification — that is, steel and cast iron — which aligns with the grade’s thermal and wear characteristics. The WKP25S grade is a coated carbide variety within the Tiger·tec Silver family, offering balanced performance across a broad range of steels and grey or nodular cast irons. For process engineers, this provides a straightforward selection for versatile milling tasks without frequent revalidation of cutting data.

For process-specific recommendations using Walter Tools’ Tiger·tec Silver inserts, contact Metav Werkzeuge for tailored cutting-data support and fast supply via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: SNMX090408-F57-WKP25S-WALTER
• Designation: SNMX090408-F57 WKP25S
• Product type: Milling indexable insert
• Manufacturer: Walter Tools
• Grade/series: WKP25S / Tiger·tec Silver

Core specifications

• Shape: Square 90°
• Corner radius: 0.8 mm
• Free angle: 0° (negative)
• Chipbreaker: F57
• Size: 09
• Thickness: 04
• Tolerance class: M
• Material designation: P / K

Special features

• Coating technology: Tiger·tec Silver
• Insert material: Coated carbide
• Main applications: Steel and cast iron machining
• Series: Tiger-tec Silver

FAQ

What materials is this insert suited for?
The SNMX090408-F57 WKP25S insert (Walter Tools, WKP25S grade) is specified for ISO groups P and K, meaning it is suitable for machining steel and cast iron.

How does the 0° negative rake affect cutting performance?
A 0° negative rake gives the insert a robust cutting edge that resists chipping under interrupted cuts; the SNMX090408-F57 WKP25S benefits from this geometry when heavy engagement or shoulder milling is required.

Can the chipbreaker F57 handle long continuous cuts?
Yes. The chipbreaker F57 on this SNMX090408-F57 WKP25S insert is designed to produce controlled, short chips in steel and cast iron, improving evacuation during sustained milling operations.

Which series does this grade belong to and what advantage does it bring?
The WKP25S grade is part of the Tiger·tec Silver series by Walter Tools; this coating technology enhances thermal and abrasive wear resistance, supporting longer tool life and consistent component quality.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected designations are mentioned solely for explanatory purposes. There is no affiliation between our company and the named manufacturers. The item offered is an original, new product from the manufacturer Walter Tools.