XNMF070508-D27 WKK25G WKK25G Wendeplatten - Walter Tools

Take advantage of long tool life, stable chip formation and process-safe cutting when machining cast iron by pairing high-performance Tiger·tec Gold coating with a robust 0° negative rake geometry; order directly via Metav Werkzeuge or consult the team for application support.

XNMF070508-D27 / XNMF070508-D27 WKK25G — Fräswendeschneidplatte for cast iron (Walter Tools)

The XNMF070508-D27 WKK25G is a coated carbide milling indexable insert optimised for productive machining of cast iron components in industrial milling applications.

• Tiger·tec Gold coated carbide for abrasion resistance
• Designed specifically for cast iron (ISO group K)
• 0° negative rake for robust cutting
• 0.8 mm corner radius for edge strength

High-performance coating for abrasion-prone cast-iron work

The combination of the Tiger·tec Gold technology and a coated carbide substrate supplies wear resistance where abrasive cast-iron materials demand it. This surface engineering reduces flank wear and extends usable life, resulting in fewer tool changes and higher uptime. For production environments dependent on predictable cycle times, the coated grade WKK25G balances wear resistance with toughness to cope with short, brittle chips typical of grey and nodular cast iron, thereby improving overall process stability.

Robust geometry that increases cutting reliability

A 0° negative rake and an 0.8 mm corner radius create a mechanically strong cutting edge that withstands high cutting forces and occasional interruptions. The negative relief angle supports improved edge security during heavy milling passes, while the medium corner radius secures repeatable surface finish and dimensional consistency. Together with the M tolerance class, these attributes help maintain predictable insert seating and runout behaviour in the toolholder, reducing the need for frequent rework and inspection.

Application-oriented chip control and handling

The D27 chipbreaker is tuned to the fracture-prone chips of cast-iron machining, promoting short, controlled chip formation and safe evacuation from the cutting zone. Assigned to ISO group K, the insert suits roughing and finishing operations where chip control and tool life are priorities. As an indexable milling insert, it simplifies inventory management and changeover: worn edges are rotated or replaced without regrinding, supporting lean production workflows and quicker spindle uptime.

For tailored advice on integrating the Walter Tools Tiger·tec Gold insert into production — including holder compatibility and recommended cutting parameters — contact Metav Werkzeuge for consultancy and swift delivery at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: XNMF070508-D27-WKK25G-WALTER
• Article designation: XNMF070508-D27 WKK25G
• Product type: Milling indexable insert
• Series: Tiger·tec Gold
• Grade: WKK25G

Facts

• Relief angle: 0° (negative)
• Corner radius: 0.8
• Plate size: 07
• Plate thickness: 05
• Chipbreaker: D27
• Execution: F
• Tolerance class: M
• Material group: K

Special features

• Coating: Tiger·tec Gold (coated carbide)
• Optimised for: Cast iron (ISO 513 group K)
• Application: productive milling of abrasive cast-iron materials
• Stable chip formation and edge protection
• Designed for industrial milling toolholders

FAQ

Which materials is this insert suitable for?
The XNMF070508-D27 WKK25G is designed primarily for cast iron (ISO group K); the WKK25G grade and Tiger·tec Gold coating target abrasive cast-iron machining.

What benefit does the Tiger·tec Gold coating provide?
The Tiger·tec Gold surface increases abrasion resistance and stabilises wear progression on the Walter Tools milling insert, extending tool life in demanding cast-iron applications.

How does the 0° negative rake affect cutting?
A 0° negative rake on this milling insert produces a stronger cutting edge and higher resistance to mechanical stresses, which improves reliability during heavy or interrupted cuts.

What is the role of the D27 chipbreaker?
The D27 chipbreaker on the insert promotes short, controlled chips when machining brittle cast iron, improving evacuation and reducing the risk of chip entanglement.

Is the XNMF070508-D27 WKK25G suitable for finishing passes?
Yes; the combination of the WKK25G grade and a 0.8 mm corner radius supports consistent edge strength and surface quality for both roughing and finishing operations on cast iron.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the mentioned brands. The offered item is original, brand-new goods of the manufacturer.