LNMU120608-F57T WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coated carbide, a robust F57T chipbreaker and a 0° (negative) clearance for stable, high-productivity milling of steel and cast iron; order the insert directly via Metav Werkzeuge or consult the technical team for application-specific advice.

LNMU120608-F57T WKP25S milling insert (for steel & cast iron) – Walter Tools

The LNMU120608-F57T WKP25S is a rectangular indexable milling insert engineered for productive machining of steel and cast iron in demanding milling operations

• Tiger·tec Silver coated carbide for long life
• Rectangular insert with 0.8 mm corner radius
• Geometry F57T for controlled chip formation
• Suitable for steel and cast iron machining

Prolonged tool life through modern coating technology

The Walter Tools insert benefits from the Tiger·tec Silver coating on coated carbide, which is designed to resist abrasive wear and heat generation typical in steel and cast iron machining. This combination reduces flank and crater wear, resulting in more consistent tool life and fewer index changes during batch production. The documented coating technology supports productivity by maintaining a stable cutting edge under cyclic thermal loads and ensures predictable reconditioning intervals for scheduled tool management.

Consistent chip control for secure processes and surface quality

Equipped with the F57T chipbreaker, the insert promotes controlled chip formation, reducing the risk of long, entangling swarf and improving evacuation in conventional milling cycles. Controlled chips contribute directly to machine uptime and the resulting workpiece finish, especially when machining interrupted cuts or mixed features. In practice, effective chip control minimises secondary operations and supports repeatable process parameters across different batches, which is particularly valuable in production environments prioritising throughput and quality.

Robust geometry and mounting for stable cutting forces

The insert’s rectangular format and 0° (negative) clearance deliver enhanced edge strength and rigidity compared with positive-clearance geometries. A 0.8 mm corner radius balances edge durability with the capability to achieve good surface integrity; radii of this size absorb shock loads without compromising run-out behaviour. The overall geometry is therefore suited to milling tasks where stability and resistance to chipping are essential, such as shoulder milling and general roughing operations on medium- to high-strength steels and cast materials.

Application range and handling notes for process planning

Designed for the ISO material groups P (steel) and K (cast iron), the insert is applicable where abrasive wear and fragmented chips are expected. Selection of feeds, speeds and depth of cut should follow machine and workholding capabilities, bearing in mind that the Tiger·tec Silver grade and F57T chipbreaker favour operations that challenge thermal resistance and swarf control. For process certainty, trial cuts with incremental parameter adjustments are recommended to establish the optimum balance between metal removal rate and insert life; the insert designation provides a clear reference for tooling lists and CAM libraries.

Contact Metav Werkzeuge for tailored application advice and to secure Walter Tools Tiger·tec Silver inserts for reliable, high-output milling

Technical data

• Article number: LNMU120608-F57T-WKP25S-WALTER
• Product: Fräswendeschneidplatte (milling insert)
• Manufacturer: Walter Tools
• Grade: WKP25S
• Series: Tiger·tec Silver

Facts

• Size: 12
• Thickness: 06
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Shape: Rectangular
• Chipbreaker: F57T
• Tolerance class: M

Special features

• Material: P / K
• Suitable for: Steel (P)
• Suitable for: Cast iron (K)
• Coating/grade type: coated carbide
• Designation: LNMU120608-F57T WKP25S

FAQ

What materials can be machined with this insert?
The LNMU120608-F57T WKP25S insert is intended for ISO groups P (steel) and K (cast iron), covering unalloyed and alloyed steels as well as common cast materials.

What advantages does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the WKP25S grade enhances wear resistance and thermal stability, extending insert life and supporting consistent performance in high-demand milling.

What is the purpose of the F57T chipbreaker?
The F57T geometry improves chip control, producing short, manageable chips that aid evacuation and protect the workpiece surface from re-cutting and built-up edge.

How does the 0° (negative) clearance affect machining?
A 0° (negative) clearance increases edge strength and rigidity, reducing the tendency for chipping under heavy or interrupted cuts and contributing to process security in robust milling tasks.

When is a 0.8 mm corner radius recommended?
A 0.8 mm corner radius provides a compromise between edge strength and surface finish; it is recommended where load absorption is required without significantly impacting dimensional accuracy.

Hersteller: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns. Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.