XNMF070508-F57 WKK25G Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Gold coating and the wear-resistant WKK25G grade for consistent, productive cast iron machining; the insert’s chipbreaker F57 and 0° (negative) free angle ensure controlled chips and robust cutting edges. Order the XNMF070508-F57 WKK25G milling indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

XNMF070508-F57 WKK25G — Milling indexable insert for cast iron, Tiger‑tec Gold, Walter Tools

The XNMF070508-F57 WKK25G is an indexable milling insert designed for efficient machining of cast iron components, combining a Tiger‑tec Gold coated substrate with a chipbreaker for reliable chip control.

• Tiger‑tec Gold coated carbide
• Optimised for cast iron (ISO K)
• Chipbreaker F57 for controlled chips
• 0° (negative) free angle for interrupted cuts

Consistent edge life and wear resistance for abrasive cast iron

The combination of the Tiger‑tec Gold coating and the WKK25G carbide grade provides a balanced resistance to abrasive wear while maintaining edge stability under cyclic loading. This coating system is engineered to reduce flank wear and maintain cutting geometry for longer tool life, which translates into fewer index changes and less unplanned downtime. The insert’s material pairing is particularly suitable for components where short, brittle chips and abrasive graphite in cast iron demand a coating that prevents premature crater and flank wear.

Reliable chip formation and secure cutting for higher productivity

Built with a chipbreaker F57 and a 0° (negative) free angle, the geometry of this insert delivers predictable chip segmentation and reinforced cutting edges, especially under interrupted cuts. The insert’s corner radius 0.8 mm increases edge robustness, allowing higher feed rates in roughing passes without sacrificing stability. For workshop planning, this means improved material removal rates and a steadier production flow when machining grey or nodular cast iron in series operations.

Practical handling and process-adapted performance on the shop floor

As an indexable insert, the XNMF070508-F57 WKK25G simplifies tool inventory and changeover: single-sided indexing reduces preparation time and supports repeatable positioning with tolerance class M. The format code (plate size 07, plate thickness 05) reflects a compact geometry compatible with a wide range of milling cutter bodies designed for cast iron milling. Given its focused ISO K application, this insert is a pragmatic choice when process reliability and predictable replacement intervals are priorities in production environments.

For availability, tooling advice or to discuss the best insert configuration for a specific cast iron application, contact Metav Werkzeuge for expert support and fast supply.

Technical Data

• SKU: XNMF070508-F57-WKK25G-WALTER
• Product designation: XNMF070508-F57 WKK25G
• Grade: WKK25G
• Series: Tiger‑tec Gold
• Chipbreaker: F57
• Free angle: 0° (negative)
• Corner radius: 0,8
• Plate size: 07
• Plate thickness: 05
• Version: F
• Tolerance class: M
• Material group: K (cast iron)
• Manufacturer: Walter Tools

Data

• Corner radius: 0.8 mm
• Free angle: 0° (negative)
• Plate size code: 07
• Plate thickness code: 05
• Tolerance class: M

Special features

• Coated carbide insert (Tiger‑tec Gold)
• Application group: ISO K (cast iron)
• Designed for abrasive wear and short breaking chips
• Suitable for interrupted cuts and roughing operations
• Manufacturer brand: Walter Tools

FAQ

What materials is this insert intended for?
The XNMF070508-F57 WKK25G insert is optimised for machining cast iron (ISO group K) and is formulated to manage the abrasive and short, brittle chips typical of those materials.

How does the chipbreaker F57 affect machining?
The chipbreaker F57 promotes controlled chip formation, reducing the risk of long stringy chips and improving evacuation during both roughing and semi-finish passes with cast iron.

Is the negative free angle suitable for interrupted cuts?
Yes. The 0° (negative) free angle increases edge strength and resistance to chipping, which benefits interrupted cutting conditions commonly encountered in milling cast iron components.

What does the WKK25G grade mean in practical terms?
WKK25G is a Walter Tools coated carbide grade from the Tiger‑tec Gold family, chosen for its wear resistance and stable cutting behaviour in abrasive cast iron applications.

Can this insert be used for finishing passes?
While optimised for robust removal and roughing in cast iron, the insert can be used for semi‑finishing where the corner radius and cutting geometry meet the surface finish and tolerance requirements of the component.

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 registered trademarks are mentioned solely for explanatory purposes. There is no affiliation between Metav Werkzeuge and the named manufacturers. The offered item is an original, brand-new product from the manufacturer Walter Tools.