LNHU160708R-L55T WKK25G Wendeplatten - Walter Tools

High process reliability and extended tool life result from the combination of the Tiger·tec Gold coating and the WKK25G grade, optimised for abrasive cast iron machining; the rectangular 16 mm insert with a 0.8 mm corner radius and 0° negative rake delivers stable chip control and consistent surface quality. Order the LNHU160708R-L55T WKK25G directly via Metav Werkzeuge or ask our consultants if needed.

LNHU160708R-L55T WKK25G – rectangular milling indexable insert, 16 mm, Tiger·tec Gold (Walter Tools)

LNHU160708R-L55T WKK25G is a rectangular milling insert engineered for efficient machining of cast iron, combining a wear-resistant coating and a chipformer tailored to brittle chips.

• Tiger·tec Gold coating for wear resistance
• Optimised for cast iron (ISO K) machining
• 16 mm rectangular format, 0.8 mm radius
• 0° negative rake for stable cutting

Higher productivity on abrasive cast iron

The combination of the Tiger·tec Gold coating and the WKK25G grade provides a targeted response to the abrasive nature of cast iron. The grade is a coated carbide formulation designed to resist abrasive wear while maintaining a robust cutting edge; this reduces flank wear and extends the usable life of the insert. For operations where short, brittle chips dominate, the geometry and coating work together to prolong uptime and lower tooling costs, delivering measurable productivity gains in series production.

Stable cutting geometry for repeatable surface finish

The rectangular insert geometry and a 0.8 mm corner radius ensure a predictable contact area and improved edge stability during milling. The 0° negative rake supports secure engagement in interrupted cuts, reducing chatter and maintaining a repeatable surface quality across multiple indexings. Such stability benefits both roughing and light finishing passes where consistent dimensional results and surface integrity are required in cast iron components.

Controlled chip formation and process security

The integrated L55T chipbreaker is optimised for the short, breaking chips typical of cast iron (ISO K). The chipformer promotes reliable chip evacuation and prevents chip packing at the cutter periphery, which in turn safeguards the cutting edge and the workpiece finish. This technical design increases process security and simplifies cycle planning, especially on operations with variable engagement or intermittent contact.

Practical advantages and application notes

As a coated indexable insert, the component facilitates quick indexing and cost-effective reconditioning of the cutting edge, supporting lean tool management. The rectangular 16 mm format allows compact pocket designs and multiple effective cutting edges per insert. Given its focus on cast iron, the grade offers a balanced combination of wear resistance and edge robustness, making it suitable for continuous production runs where consistent tool life and surface quality are priorities.

For specific application advice, batch availability or to request a specification sheet for the Walter Tools LNHU160708R-L55T WKK25G insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: LNHU160708R-L55T-WKK25G-WALTER
• Product type: Fräswendeschneidplatte / milling indexable insert
• Series: Tiger·tec Gold
• Grade: WKK25G
• Manufacturer: Walter Tools

Facts

• Insert size: 16
• Thickness code: 07
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Tolerance class: H

Special features

• Coating: Tiger·tec Gold
• Chipbreaker: L55T
• Shape: Rectangular
• Suitable for: cast iron (ISO K)
• Base material type: coated carbide

FAQ

Which materials is this insert intended for?
The LNHU160708R-L55T WKK25G insert from Walter Tools is intended primarily for machining cast iron (ISO K), with its grade and coating tuned to resist abrasive wear typical of those materials.

What advantage does the Tiger·tec Gold coating provide?
The Tiger·tec Gold coating on the LNHU160708R-L55T WKK25G increases wear resistance and improves edge life, leading to longer intervals between indexings and more consistent production output.

How does the L55T chipbreaker affect machining?
The L55T chipbreaker promotes the formation of short, controlled chips during milling of cast iron, aiding chip evacuation and reducing the risk of chip-related edge damage with the LNHU160708R-L55T WKK25G insert.

Is the 0° negative rake suitable for interrupted cuts?
Yes, the 0° negative rake geometry contributes to stable engagement and resistance to mechanical shock, making the insert well suited to interrupted milling operations in cast iron.

What are the key dimensional features to check when selecting a pocket?
Verify the rectangular 16 mm format, the thickness code 07 and the 0.8 mm corner radius to ensure correct seating and clamping for the LNHU160708R-L55T WKK25G insert.

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

Protected trademarks and product names remain the property of their respective owners. Brand names and trademarks are mentioned for clarification only; there is no affiliation between Metav Werkzeuge and the trademark owners. The offered item is an original, factory-new product from Walter Tools.