LNHU100508-B57T WKK25G Wendeplatten - Walter Tools

Benefit from high process reliability and extended tool life thanks to the Tiger·tec Gold coating and the wear‑resistant WKK25G grade; the negative 0° geometry and the B57T chipbreaker secure consistent chip formation and stable cutting. Order the insert directly via Metav Werkzeuge or consult our technical team for application support.

LNHU100508-B57T WKK25G milling insert — Tiger·tec Gold for cast iron, Walter Tools

A LNHU100508-B57T WKK25G indexable milling insert developed for productive machining of cast iron, combining a coated‑carbide grade with an optimised chipbreaker for repeatable performance

• Tiger·tec Gold coating for long tool life
• Optimised for cast iron applications
• Chipbreaker B57T for controlled chip formation
• Negative 0° rake for stable cutting

Consistent wear resistance for abrasive cast iron

The WKK25G grade, implemented in the Tiger·tec Gold series, is a coated carbide formulation tuned for the abrasive nature of cast iron (ISO group K). This composition addresses short, brittle chips and high abrasive wear by combining a wear‑resistant substrate with a protective multilayer coating. For production environments this means fewer insert changes, reduced downtime and more predictable machining cycles. The result is improved component quality while maintaining cutting performance across longer tool lives.

Geometry engineered for predictable chip control

The insert’s chipbreaker B57T, combined with a negative 0° rake, actively shapes chip flow and reduces the risk of built‑up edge in interrupted cuts. The rectangular form and corner radius 0.8 improve edge stability during radial engagement, translating into consistent surface finish and reduced vibration. For tool planners, these geometric traits simplify parameter selection: conservative feeds and stable depths of cut yield reliable metal removal rates without excessive tool wear.

Process benefits and integration into production

Specified with tolerance class H and an industrial execution that supports standard toolholders, this insert integrates smoothly into existing milling systems. The Tiger·tec Gold technology together with the WKK25G grade reduces frequency of regrinds and tool changes, contributing to lower overall machining costs. For engineers seeking repeatable results in series production, the combination of grade, coating and chipbreaker offers a balance of productivity and component integrity that supports lean machining strategies.

For tailored tool recommendations and fast availability from Metav Werkzeuge, contact our technical sales at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss the LNHU100508-B57T WKK25G and optimal machining parameters.

Technical Data

• Article number: LNHU100508-B57T-WKK25G-WALTER
• Designation: LNHU100508-B57T WKK25G
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold

Core data

• Plate size: 10
• Plate thickness: 05
• Corner radius: 0.8
• Rake angle: 0° (negative)
• Tolerance class: H

Special features

• Shape: Rectangle
• Chipbreaker: B57T
• Grade: WKK25G (coated carbide)
• Material group: Cast iron (ISO K)
• Execution: U

FAQ

Which materials is this insert designed for?
The LNHU100508-B57T WKK25G is optimised for cast iron (ISO group K); the WKK25G grade and Tiger·tec Gold coating address abrasive wear typical of these materials.

How does the B57T chipbreaker affect machining?
The B57T chipbreaker promotes controlled chip segmentation and evacuation, improving surface integrity and reducing the chance of chip entanglement during milling.

What are the advantages of the negative 0° rake?
A negative 0° rake increases edge strength and stability, which is beneficial for interrupted cuts and heavy engagement where a robust cutting edge is required.

Is the grade suitable for series production?
Yes, the WKK25G grade in Tiger·tec Gold is formulated for repeatable performance and extended tool life, making it well suited to series production on cast iron components.

Can the insert be used for finishing operations?
With its corner radius and stable geometry, the insert supports robust finishing when appropriate feeds and speeds are applied; chip control and coating both contribute to consistent surface results.

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

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