LNGX130708R-L55 WKK25G Wendeplatten - Walter Tools

The combination of Tiger·tec Gold coating, the WKK25G grade and the L55 chipbreaker delivers reliable wear resistance and predictable chip formation for cast iron machining; order the insert directly via Metav Werkzeuge or contact the technical team for application advice.

LNGX130708R-L55 WKK25G – Milling indexable insert, Tiger·tec Gold grade for cast iron (Walter Tools)

LNGX130708R-L55 WKK25G is a rectangular milling indexable insert engineered for productive machining of cast iron, featuring a Tiger·tec Gold coating and a neutral 0° negative rake for robust cutting performance

• Tiger·tec Gold coating for enhanced wear resistance
• Optimised for cast iron machining (ISO group K)
• Negative 0° rake for stable cutting conditions
• Rectangular insert with 0.8 mm corner radius

Extended wear life and consistent edge performance

The combination of the Tiger·tec Gold coating and the WKK25G carbide grade is designed to resist the abrasive wear typical of cast iron applications. This coating-system pairing reduces flank and crater wear under high abrasive loads, which results in more predictable tool life and fewer unscheduled tool changes. For production environments where repeatability matters, the improved wear resistance translates directly into steady component quality and reduced process variation.

Geometry that stabilises heavy cuts and intermittent milling

The insert’s negative 0° rake and rectangular form factor provide enhanced mechanical support at the cutting edge, making the geometry well suited to interrupted cuts and heavy engagement. The 0.8 mm corner radius increases edge strength and helps prevent premature chipping, while the robust body supports consistent seating in the toolholder. Together, these features help maintain surface finish and dimensional stability during demanding milling operations.

Controlled chips and reliable process security

Equipped with the L55 chipbreaker, the insert manages the short, brittle chips typical of cast iron, promoting reliable chip evacuation and reducing the risk of re-cutting. The tool’s tolerance class G ensures repeatable indexing and seating accuracy, which simplifies tool changes and keeps cycle times steady. Integrating this insert into a workflow supports higher process security and helps maintain throughput across batch production.

For application-specific cutting data, machined-surface targets or to discuss suitable toolholder pairings for the Tiger·tec Gold WKK25G insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to arrange technical consultation and supply options

Technical data

• SKU: LNGX130708R-L55-WKK25G-WALTER
• Label: Fräswendeschneidplatte LNGX130708R-L55 WKK25G Walter Tools
• Manufacturer: Walter Tools

Facts

• Insert size: 13 mm
• Thickness: 7.0 mm
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Tolerance class: G

Special features

• Coating: Tiger·tec Gold
• Grade: WKK25G
• Chipbreaker: L55
• Shape: Rectangular
• Material application: cast iron (ISO group K)
• Series: Tiger·tec Gold
• Execution: X

FAQ

Which materials is this insert intended for?
This insert is optimised for machining cast iron (ISO group K); the WKK25G grade and Tiger·tec Gold system are tuned for abrasive grey and nodular cast irons.

What advantages does the Tiger·tec Gold coating bring?
The Tiger·tec Gold coating on the WKK25G grade improves resistance against abrasive wear and thermal softening, extending effective cutting life under the short-chip conditions typical of cast iron.

How does the negative 0° rake affect cutting behaviour?
A negative 0° rake contributes to a stronger cutting edge and greater mechanical stability, which benefits interrupted cuts and heavy material engagement by reducing edge deflection and chipping.

What chip control can be expected with the L55 chipbreaker?
The L55 chipbreaker shapes and fractures short chips reliably for cast iron, aiding evacuation and lowering the risk of chip build-up that can affect surface quality.

Does the insert offer consistent positioning and repeatability?
Yes. The tolerance class G and standardised geometry provide reliable seating and repeatable indexing, supporting consistent part quality across multiple insert changes.

Protected trademarks and trade names are the property of their respective owners and are mentioned here for descriptive purposes only. There is no affiliation between our company and the trademark owners. The offered item is an original, factory-new product from the manufacturer.

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