XNMU070508-F57 WKP25S Wendeplatten - Walter Tools

Combining the Tiger·tec Silver coating, the WKP25S cutting grade and the robust F57 chipbreaker, the insert offers steady edge life and reliable chip control in steel and cast-iron milling; order directly via Metav Werkzeuge or consult our application specialists for tailored recommendations.

XNMU070508-F57 WKP25S milling insert — Tiger·tec Silver coated, for steel & cast iron | Walter Tools

The XNMU070508-F57 WKP25S is a milling indexable insert engineered for productive machining of steel (P) and cast iron (K), featuring a dedicated F57 chipbreaker and a 0° negative free angle.

• Tiger·tec Silver coating for extended tool life
• WKP25S grade optimised for steel and cast iron
• 0.8 mm corner radius for increased edge strength
• F57 chipbreaker for controlled chip formation

Consistent machining performance through coated-carbide technology

The Tiger·tec Silver coating combined with the WKP25S grade provides a balance of wear resistance and toughness that is particularly effective in the thermal and mechanical conditions encountered when machining steel and cast iron. The coated-carbide construction ensures steady edge life under cyclic loads and abrasive contact, while the F57 chipbreaker supports predictable chip breakage and evacuation. These technical characteristics translate into fewer tool changes and more stable cycle times on production lines, which benefits both single-piece flow and batch operations.

Stable geometry for secure milling and reproducible results

A negative free angle of 0° and a corner radius of 0.8 mm make this insert well suited to operations where cutting-edge stability and strength are priorities. The geometry reduces the risk of edge chipping during interrupted cuts and supports consistent surface integrity on roughing passes. With tolerance class M and the ISO designation present in the marking, users gain reliable interchangeability and repeatability when matching inserts to toolholders and cutter bodies specified for this ISO style.

Practical application guidance and selection criteria

Compatibility with ISO material groups P (steel) and K (cast iron) defines the typical application window for this grade and chipbreaker combination. In practice, the insert excels in medium- to heavy-duty milling tasks where controlled chip flow and resistance to abrasive wear are required. Selection should focus on matching the insert size and thickness codes to the cutter body, and on choosing machining parameters that exploit the coating’s strengths—moderate to high cutting speeds with appropriate feeds for chip control. For specialised conditions or mixed-material batches, consult the toolmaker’s recommendations to align cutter geometry, coolant strategy and parameter windows with the insert’s capabilities.

For application-specific advice on Walter Tools Tiger·tec Silver inserts such as the XNMU070508-F57 WKP25S, contact Metav Werkzeuge's cutting-tool specialists at info@metav-werkzeuge.com or +49 2822 7131930 for detailed recommendations and availability

Technical data

• SKU: XNMU070508-F57-WKP25S-WALTER
• Name: Fräswendeschneidplatte XNMU070508-F57 WKP25S Walter Tools
• Series: Tiger·tec Silver
• Grade: WKP25S
• Manufacturer: Walter Tools

Core technical data

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

Special features

• Chipbreaker: F57
• Coating technology: Tiger·tec Silver
• Material compatibility: steel (P); cast iron (K)
• Execution: U
• ISO designation: XNMU070508-F57 WKP25S
• Material indication: P / K

FAQ

Which materials can be machined with this insert?
The XNMU070508-F57 WKP25S milling insert by Walter Tools is specified for ISO groups P (steel) and K (cast iron), making it suitable for both unalloyed/low-alloy steels and a range of cast-iron types.

What advantage does the WKP25S grade provide?
WKP25S is a Walter coated-carbide grade in the Tiger·tec Silver family; it offers a compromise between wear resistance and toughness that favours longer tool life and reliable performance in typical steel and cast-iron milling tasks.

How does the F57 chipbreaker affect machining?
The F57 chipbreaker promotes controlled chip formation and evacuation, reducing the risk of entanglement and improving process stability during medium to heavy milling operations.

What is the significance of the 0.8 mm corner radius?
A 0.8 mm corner radius increases edge strength and helps absorb cutting forces during interrupted cuts, supporting robust roughing performance and improved resistance to edge chipping.

How should the geometry code be interpreted when selecting holders?
The ISO-style designation XNMU070508-F57 WKP25S identifies the insert’s shape, size family and chipbreaker; match this marking with toolholder specifications to ensure correct seating, clamping and cutting clearance.

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

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is among the world's leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and product names belong to their respective owners. Mention of brand names serves explanatory purposes only and does not imply any affiliation; the offered item is an original, factory-new product of the manufacturer.