SPMT120408-F55 WKP25S Wendeplatten - Walter Tools

Take advantage of the Tiger·tec Silver coating and the robust WKP25S grade for consistent process security and long tool life; the 0.8 mm corner radius and F55 chipbreaker ensure controlled chips and reliable edge stability in heavy milling. Order the SPMT120408-F55 WKP25S directly via Metav Werkzeuge or consult our specialists for application advice.

SPMT120408-F55 WKP25S — indexable milling insert, Tiger·tec Silver, Walter Tools

The SPMT120408-F55 WKP25S is a square 90° indexable milling insert, engineered for productive machining of Stahl and cast iron with a focus on consistent chip control and extended service life.

• Tiger·tec Silver coating for long tool life
• Grade WKP25S for Stahl and cast iron machining
• Square 90° insert with 0.8 mm corner radius
• 11° clearance angle with F55 chipbreaker

High productivity through modern coating and grade

The combination of the Tiger·tec Silver coating and the WKP25S grade provides a clear advantage for industrial milling: enhanced wear resistance reduces flank wear and extends usable life under cyclic loads. This modern coated carbide is optimised for the thermal and abrasive conditions commonly encountered when machining Stahl and cast iron, so the tool maintains its cutting geometry for longer periods. The result is fewer interruptions for indexable insert changes and a more predictable production rhythm, which supports batch consistency and lowers overall machining costs.

Precise geometry for reliable chip control

The square 90° form and the 0.8 mm corner radius deliver a balance between edge strength and dimensional accuracy for a wide range of milling tasks. The F55 chipbreaker is designed to break and evacuate chips efficiently during medium to heavy cuts, reducing re-cutting and improving surface finish. With an 11° clearance angle, the insert minimises rubbing and heat build-up at the flank, preserving the cutting edge even in interrupted or trochoidal milling strategies. These geometric choices translate into stable forces at the tool–workpiece interface and more consistent component tolerances.

Application range and process advantages

Designed for the ISO material groups P and K (Stahl and cast iron), this insert suits shops that require a versatile solution across conventional structural steels and various cast components. The tolerance class M and the compact plate format (size 12, thickness 04) support precise seating and repeatability in standard indexable toolholders. For operations that prioritise process security and reproducible surface quality, the Walter Tools Tiger·tec Silver family provides a dependable balance of wear resistance and edge robustness, enabling longer tool cycles and fewer unplanned tool changes.

For chip-stable, high-productivity milling using Walter Tools' Tiger·tec Silver grade, contact Metav Werkzeuge for tailored recommendations and ordering at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: SPMT120408-F55-WKP25S-WALTER
• Article: SPMT120408-F55 WKP25S
• Product type: Indexable milling insert
• Brand: Walter Tools
• Series: Tiger·tec Silver

Facts

• Size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Clearance angle: 11°
• Tolerance class: M

Special features

• Grade: WKP25S
• Chipbreaker: F55
• Plate form: Square 90°
• Material suitability: P / K (Stahl, cast iron)
• Version: T
• Designation (base): SPMT120408-F55

FAQ

What materials is this insert suitable for?
The SPMT120408-F55 WKP25S is designed for the ISO groups P and K, meaning it is suited to machining Stahl (P) and cast iron (K) in general industrial applications.

What benefit does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the WKP25S grade increases wear resistance and thermal stability, which helps the insert keep a sharper cutting edge for longer and supports consistent machining performance.

How does the F55 chipbreaker affect milling results?
The F55 chipbreaker is engineered to break chips reliably during medium to heavy cuts, improving chip evacuation, reducing re-cutting, and supporting a better surface finish with stable cutting forces.

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

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