LNMU130608R-L55T WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKP25S grade for extended tool life and consistent chip control when machining steel and cast iron; order the LNMU130608R-L55T WKP25S insert directly via Metav Werkzeuge or request tailored advice from our consultants for optimal process integration.

LNMU130608R-L55T WKP25S – Milling indexable insert (Tiger·tec Silver, 0° negative) by Walter Tools

The LNMU130608R-L55T WKP25S is a rectangular milling insert designed for stable, high-productivity machining of steel and cast iron, combining a wear-resistant coated grade with a geometry optimised for controlled chip formation.

• Tiger·tec Silver coating for extended tool life
• WKP25S grade optimised for steel and cast iron
• Rectangular form with 0.8 mm corner radius
• 0° negative rake for stable cutting performance

Consistent cutting performance and prolonged service life

The insert’s Tiger·tec Silver technology and the WKP25S coated carbide grade deliver high resistance to abrasive and thermal wear, which translates into fewer tool changes and longer productive tool life. Designed specifically for machining materials in groups P (steel) and K (cast iron) according to ISO 513, the coated grade manages the typical heat and chip characteristics of these substrates. The result is a predictable tool wear pattern, improved process reliability and the potential for higher metal removal rates without sacrificing component quality.

Geometry and chip control for stable milling

The rectangular form and the integrated chipbreaker L55T provide consistent chip segmentation and evacuation, reducing the risk of built-up edge and workpiece damage during intermittent or continuous cuts. The 0° negative rake increases edge robustness and damping under heavy cuts, while the 0.8 mm corner radius supports edge strength for roughing and semi-finishing operations. Together, these geometric attributes help maintain a stable cutting process with lower vibration and a more repeatable surface finish on serial production runs.

Application flexibility that improves productivity

Engineered for a broad range of steels and cast irons, this insert reduces the need for frequent tool changes across mixed-production environments. Compatibility with common milling bodies and standard clamping systems means quick insertion and repeatable positioning on the toolholder. The coating and grade combination favour processes where a balance of wear resistance and toughness is required, enabling higher cycle output and fewer interruptions for regrinding or replacement.

Practical benefits for workshop workflows

The insert’s design supports efficient stock removal and reliable tool life, contributing to reduced setup time and predictable production planning. Its tolerance class M ensures dimensional consistency for repeat operations, while the compact dimensions lend themselves to flexible toolpath strategies in both roughing and finishing passes. Clear identification by ISO-style designation simplifies inventory management and ordering within established procurement processes.

Contact Metav Werkzeuge today to specify the LNMU130608R-L55T WKP25S for the intended machining tasks and obtain application-focused recommendations from our technical advisors

Technical data

• Article number: LNMU130608R-L55T-WKP25S-WALTER
• Name: LNMU130608R-L55T WKP25S
• Manufacturer: Walter Tools

Facts

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

Special features

• Series: Tiger·tec Silver
• Grade: WKP25S (coated carbide)
• Chipbreaker: L55T
• Form: Rectangular
• Material applicability: Steel (P), Cast iron (K)

FAQ

Which materials is this insert suitable for?
The LNMU130608R-L55T WKP25S milling insert from Walter Tools is specified for machining steel (P) and cast iron (K) in line with ISO 513; the WKP25S grade and Tiger·tec Silver coating are optimised for those groups.

What advantages does the Tiger·tec Silver series provide?
Tiger·tec Silver, as applied to the WKP25S grade, offers improved wear resistance and thermal stability, which helps the insert maintain cutting performance over longer tool life spans in demanding milling applications.

How does the 0° negative rake affect cutting?
The 0° negative rake increases edge robustness and stability during heavy cuts; in the case of this rectangular insert, it complements the 0.8 mm corner radius to reduce edge chipping and support consistent material removal.

Can this insert be used for both roughing and semi-finishing?
Yes, the geometry and chip control features of the LNMU130608R-L55T WKP25S make it suitable for a combination of roughing and semi-finishing operations, providing a balance between durability and surface quality.

What identification should be used when reordering?
Order using the ISO-style designation LNMU130608R-L55T WKP25S and specify Walter Tools as the manufacturer to ensure the correct coated carbide grade and chipbreaker variant are supplied.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Swedish Sandvik group. Protected trademarks and product names are the property of their respective owners. Mention of brand names is for identification and explanatory purposes only; the described article is an original, factory-new product of the stated manufacturer.