LNMU130608R-L55T WKK25G Wendeplatten - Walter Tools

Take advantage of the combination of proven Tiger·tec Gold coating, a chipformer optimised for cast iron and a robust rectangular geometry to maintain productive machining cycles and predictable tool life; order the insert directly via Metav Werkzeuge or consult our application specialists for process optimisation.

LNMU130608R-L55T WKK25G — indexable milling insert for cast iron | Walter Tools

The LNMU130608R-L55T WKK25G is a rectangular indexable milling insert designed for efficient machining of cast iron components, offering a coated carbide grade and a chipbreaker tuned for broken, abrasive chips.

• Tiger·tec Gold coated grade WKK25G
• Optimised for cast iron (K)
• L55T chipbreaker for secure chip control
• Rectangular insert with 0.8 mm radius

Maximise productivity on cast iron with a purpose-built insert

This indexable milling insert delivers a clear productivity advantage when machining cast iron. The WKK25G grade, part of the Tiger·tec Gold series, is engineered to resist abrasive wear common in grey and ductile castings; this reduces the frequency of insert changes and supports longer uninterrupted production runs. The rectangular geometry and the 0° negative relief contribute to stable cutting forces and predictable chip formation. For operations requiring repeatable cycle times and consistent surface quality, this configuration supports higher uptime and fewer interruptions.

Coating and chip control that reduce downtime and rework

The combination of a coated carbide substrate and an optimised L55T chipbreaker helps to manage the short, often brittle chips typical of cast iron. The coating enhances edge stability and wear resistance under abrasive conditions, while the chipbreaker promotes controlled fragmenting of swarf to avoid entanglement and reduce the risk of recutting. As a result, the machining process becomes more robust against variable cast structures, translating into fewer incidents of tool damage and less rework — an important factor for cost-effective production.

Practical specifications and application guidance for shop-floor success

Key dimensions and the 0.8 mm corner radius make this insert suitable for general face and shoulder milling where a balance between edge strength and profile detail is required. The insert’s rectangular form factor provides secure clamping and repeatable orientation in compatible tool holders. Use in rigid tool bodies and stable setups is recommended to exploit the grade’s wear resistance; moderate feeds help maintain edge life while ensuring effective chip breaking. For tailored advice on feeds, speeds and suitable cutter bodies, consult the technical advisers at Metav Werkzeuge to align the insert’s strengths with specific component geometries.

For application-specific recommendations or to secure supply of the Walter Tools LNMU130608R-L55T WKK25G insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt technical support and delivery guidance

Technical Data

• SKU: LNMU130608R-L55T-WKK25G-WALTER
• Product type: Indexable milling insert (rectangular)
• Designation: LNMU130608R-L55T WKK25G
• Manufacturer: Walter Tools

Facts

• Plate size: 13
• Corner radius: 0.8 mm
• Thickness code: 06
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger·tec Gold
• Grade: WKK25G (coated carbide)
• Chipbreaker: L55T
• Shape: rectangular
• Application: cast iron machining (K)
• Execution: U

FAQ

What materials is this insert intended to machine? The LNMU130608R-L55T WKK25G insert is specified for cast iron machining (material group K) and is tuned to resist abrasive wear typical of cast components.

What advantages does the Tiger·tec Gold technology provide? Tiger·tec Gold coating enhances edge stability and wear resistance, enabling the WKK25G grade to maintain cutting performance and reduce insert change frequency under abrasive cast iron conditions.

How does the L55T chipbreaker affect operation? The L55T chipbreaker promotes secure chip control by fragmenting short, brittle chips from cast iron, reducing swarf issues and lowering the risk of recutting or tool damage during milling.

Is this insert compatible with general milling tool holders? The rectangular form and standard ISO designation of the insert allow use in matching cutter bodies designed for rectangular indexable inserts; ensure the toolholder supports the insert’s thickness and clamping geometry.

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

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