XNHF070508-D27 WKK25G Wendeplatten - Walter Tools

Take advantage of a high-performance carbide grade and the Tiger·tec Gold coating for stable chip formation and long tool life; the insert combines robust edge integrity with geometry tuned for abrasive cast-iron work. Order directly via Metav Werkzeuge or consult our application specialists for process optimisation.

XNHF070508-D27 WKK25G indexable milling insert for cast iron, Tiger·tec Gold – Walter Tools

A XNHF070508-D27 WKK25G indexable milling insert designed for efficient machining of cast iron components, combining a coated carbide grade with a proven chipbreaker geometry for industrial milling operations

• Tiger·tec Gold coated carbide for wear resistance
• Optimised for abrasive cast-iron machining
• 0.8 mm corner radius for stable cutting edge
• Chipbreaker D27 for controlled chip formation

Durable grade optimised for cast-iron machining

The WKK25G grade within the Tiger·tec Gold family delivers coated carbide performance tailored to the abrasive nature of cast iron. The coating reduces flank and crater wear under typical grey and nodular cast-iron conditions, which leads to longer component runs and fewer tool changes. For production environments that require dependable cycle times, this grade offers a balanced combination of hardness and fracture resistance: the result is improved process stability and predictable insert life. The explanation of "coated carbide": a thin, engineered layer bonded to a cemented carbide substrate that enhances heat resistance and reduces abrasive wear during intermittent or continuous milling.

Geometry and chip control that reduces rework

Precise geometry enables the insert to manage frequently short, breaking chips typical of cast-iron materials. The integrated chipbreaker D27 and a 0.8 mm corner radius ensure consistent chip segmentation and a robust cutting edge, while the 0° negative rake contributes to shock resistance in interrupted cuts. These features translate to fewer built-up edges and a more consistent surface finish, reducing the need for rework. In practice, the specified corner radius and chipbreaker work together to maintain edge strength during heavy engagement, so operators observe more uniform component tolerances and extended indexable insert cycles.

Process benefits and practical application guidance

The insert is supplied in the standard industrial format 07 with thickness 05, making it compatible with indexable milling cutters specified for these plate codes. Classified for group K under ISO 513, the grade is explicitly intended for cast iron machining; this helps when selecting tooling assortments for mixed workshops. Using this insert in production supports higher uptime through reduced insert consumption and stable chip control. For shops transitioning from less abrasion-resistant grades, the Tiger·tec Gold series typically delivers better edge life and can support improved overall productivity without extensive parameter experimentation.

Contact Metav Werkzeuge for tailored application advice on Walter Tools Tiger·tec Gold inserts or to arrange a materials suitability review by phone +49 2822 7131930 or e‑mail info@metav-werkzeuge.com

Technical Data

• Article number: XNHF070508-D27-WKK25G-WALTER
• Name: XNHF070508-D27 WKK25G
• Manufacturer: Walter Tools

Facts

• Corner radius: 0.8 mm
• Free angle / rake: 0° (negative)
• Format: 07
• Thickness code: 05
• Tolerance class: H

Special features

• Series: Tiger·tec Gold
• Grade: WKK25G
• Chipbreaker: D27
• Material code: K (suitable for cast iron)
• Execution: F
• Coated cemented carbide

FAQ

Which materials is this insert intended for?
The grade WKK25G in the XNHF070508-D27 WKK25G insert is engineered primarily for cast iron (material group K under ISO 513), offering wear resistance and chip control suited to abrasive cast-iron machining.

What advantages does the Tiger·tec Gold coating provide?
Tiger·tec Gold on this insert improves heat and wear resistance, which extends the cutting life of the XNHF070508-D27 WKK25G and stabilises performance during long production runs in cast iron.

What do the codes XNHF070508-D27 and D27 indicate?
The designation XNHF070508-D27 identifies the insert geometry and size series (format 07, thickness 05) while D27 specifies the chipbreaker style designed for controlled chip formation.

Is the insert suitable for interrupted cuts or heavy engagement?
Yes, the negative 0° rake and robust WKK25G grade provide shock resistance and maintain edge integrity under interrupted cutting typical in milling cast-iron components.

Can this insert be used for steel or stainless applications?
The data for this insert indicates suitability for cast iron (K); no specifications for steel or rostfreier Stahl are provided for this grade, so alternate grades should be selected for those materials.

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

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