LNGX130720R-L55 WKP25S Wendeplatten - Walter Tools

Take advantage of the high wear resistance and consistent chip control of the Tiger‑tec Silver grade to boost machining productivity, while the rectangular 2 mm corner radius and 0° negative rake ensure stable cuts in steel and cast iron; order directly via Metav Werkzeuge or consult our specialists for application advice.

LNGX130720R-L55 WKP25S rectangular milling insert, Tiger‑tec Silver for steel and cast iron — Walter Tools

The LNGX130720R-L55 WKP25S is a rectangular milling indexable insert engineered for productive roughing and finishing in steel (P) and cast iron (K) applications.

• Tiger‑tec Silver coating for extended life
• Optimised for steel and cast iron machining
• 0° negative rake for stable cutting
• Rectangular insert with 2 mm corner radius

Reliable wear resistance for higher uptime

The coated WKP25S grade combines a hard base with the Tiger‑tec Silver surface to reduce abrasive wear and maintain edge integrity over longer cutting intervals. This translates into fewer indexings and predictable tool life, which supports higher machine utilisation and lower tooling overhead. The coating also helps to improve surface finish on typical ferrous materials, reducing rework and enhancing process reliability.

Stable cutting geometry for consistent chip control

With a 0° negative rake and a dedicated chipbreaker L55, the insert provides controlled chip formation under mixed cutting conditions. The negative rake increases cutting edge stability at higher feed rates, while the L55 geometry encourages short, manageable chips in both steel and cast iron. Together, these features reduce vibration and improve dimensional repeatability in serial production.

Geometry and handling that simplify tool planning

The rectangular form and 2 mm corner radius support robust entry and exit behaviour on interrupted cuts and shoulder milling. The insert’s dimensioning (size code 13) and thickness code 07 make it suitable for standard rectangular-holder systems, simplifying tool inventory. The tolerance class G ensures consistent fit and repeatability in tool assemblies, helping to streamline setup and reduce scrap.

Application benefits and material compatibility explained

Designed for the ISO material groups P (steel) and K (cast iron), this insert addresses the typical challenges of each: heat generation and continuous chips in steel, and abrasive wear plus brittle chip breakage in cast iron. By matching the WKP25S carbide grade and Tiger‑tec Silver coating to these demands, the insert offers a balanced compromise between toughness and wear resistance, improving performance across a wide range of production tasks.

Contact Metav Werkzeuge today to discuss process-specific recommendations and secure Walter Tools Tiger‑tec Silver inserts that match the machining requirements of steel and cast iron parts

Technical Data

• SKU: LNGX130720R-L55-WKP25S-WALTER
• Label: Fräswendeschneidplatte LNGX130720R-L55 WKP25S Walter Tools
• Product type: Fräswendeschneidplatte
• Series: Tiger‑tec Silver
• Grade: WKP25S

Facts

• Insert size: 13
• Thickness code: 07
• Corner radius: 2 mm
• Rake angle: 0° (negative)
• Tolerance class: G

Special features

• Coating: Tiger‑tec Silver
• Chipbreaker: L55
• Shape: Rectangular
• Applicable materials: Steel (P), Cast iron (K)
• Execution: X
• Material code: P / K
• Manufacturer: Walter Tools

FAQ

What materials is this insert suitable for?
The LNGX130720R-L55 WKP25S insert in WKP25S grade is specified for steel (ISO group P) and cast iron (ISO group K), offering balanced wear resistance and edge strength for both material families.

How does the Tiger‑tec Silver coating benefit machining?
The Tiger‑tec Silver coating on the Walter Tools insert reduces abrasive wear and improves heat resistance, which helps to extend tool life and maintain a consistent surface finish over longer production runs.

What is the effect of the 0° negative rake?
A 0° negative rake increases cutting-edge stability and reduces the risk of chipping during heavy or interrupted cuts, contributing to reproducible results and steadier tool performance.

Which chip behaviour is expected with the L55 chipbreaker?
The chipbreaker L55 promotes short, manageable chips in both steel and cast iron, supporting safer evacuation and reduced recutting of chips in serial machining.

Is this insert compatible with standard rectangular holders?
Yes, the insert’s rectangular form and size code 13 are intended for use in standard rectangular milling holders; the tolerance class G supports consistent seating and repeatability.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are mentioned solely for explanatory purposes. There is no connection between our company and the mentioned brands. The offered item is original, factory-new goods of the manufacturer. Walter Tools is part of the global precision tooling community and is recognised for high-quality cutting solutions and process security.