XNMF090612-D57 WKK25G WKK25G Wendeplatten - Walter Tools

Benefit from the combination of the Tiger‑tec Gold coating, the WKK25G cast‑iron grade and the 0° negative geometry for secure chip control and extended tool life; order directly via Metav Werkzeuge or contact our consultants for tailored recommendations.

XNMF090612-D57 WKK25G milling insert for cast iron by Walter Tools — Tiger‑tec Gold, D57 chipbreaker

A XNMF090612-D57 WKK25G milling insert engineered for high‑performance machining of cast iron, featuring Tiger‑tec Gold coated carbide and a D57 chipbreaker for stable, reproducible results.

• Tiger‑tec Gold coating for long tool life
• Optimised for cast iron (ISO group K)
• 0° negative rake for robust cutting
• 1.2 mm corner radius for stable edges

Stable chip control for abrasive cast‑iron machining

The Tiger‑tec Gold grade WKK25G is formulated to address the abrasive wear and typically short, brittle chips encountered when machining cast iron. The combination of a purpose‑designed chipbreaker D57 and the coated carbide substrate ensures chips are fractured and evacuated reliably, reducing the risk of built‑up edge and uncontrolled tool loading. From a production perspective, this results in fewer interruptions, more consistent surface quality and a measurable improvement in process reliability—key parameters for efficient series production.

Coating and grade deliver longer service intervals

The Tiger‑tec Gold coating applied to this grade enhances resistance to abrasive wear and thermal loading compared with uncoated grades. The coating, together with the WKK25G substrate, provides a balance between hardness and toughness tailored for grey and nodular cast irons (ISO group K). For shops seeking predictable tool life and fewer insert changes, this coated carbide solution reduces downtime and contributes to lower overall machining costs while maintaining dimensional accuracy.

Geometry and dimensions that improve edge stability

The insert’s 0° negative rake geometry and 1.2 mm corner radius offer a robust cutting edge that tolerates intermittent cuts and variable chip thickness typical of cast‑iron components. The nominal plate size 09 and plate thickness 06 align with common milling cutter bodies, enabling straightforward integration into existing holder systems. The negative rake increases edge strength, making the insert suitable for heavier engagements where edge stability and repeatability are priorities.

Practical usage and process considerations

When integrating this insert into a machining process, selection of appropriate cutting speeds and feed per tooth for cast iron is essential to exploit the WKK25G advantages fully. The coated grade performs well under conventional coolant regimes and dry machining in many cases; however, application‑specific trials are recommended to optimise parameters. The insert’s tolerance class M and execution F indicate manufacturing precision and a defined finish state, supporting consistent assembly into toolholders and predictable runout behaviour at standard spindle speeds.

Contact Metav Werkzeuge today to request a cutting concept or application notes for Walter Tools Tiger‑tec Gold inserts and secure the right configuration for cast‑iron production.

Technical data

• Article number (SKU): XNMF090612-D57-WKK25G-WALTER
• Product designation: XNMF090612-D57 WKK25G
• Brand: Walter Tools

Facts

• Corner radius: 1.2 mm
• Plate size: 09
• Plate thickness: 06
• Free rake angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger‑tec Gold
• Grade: WKK25G (coated carbide)
• Chipbreaker: D57
• Material application: Cast iron (ISO group K)
• Execution: F

FAQ

What materials is this insert designed for?
The XNMF090612-D57 WKK25G insert is optimised for cast iron (ISO group K) and is formulated to manage abrasive wear and short, breaking chips typical for these materials.

How does the Tiger‑tec Gold coating benefit production?
Tiger‑tec Gold on the WKK25G grade improves abrasion resistance and thermal stability, leading to longer tool life and reduced frequency of insert changes during cast‑iron machining.

What does the 0° negative rake mean for cutting performance?
A 0° negative rake increases edge strength and robustness, making the insert suitable for interrupted cuts and heavier engagements where a stable cutting edge is required.

Is the chipbreaker D57 suitable for finishing or roughing operations?
The D57 chipbreaker is designed to ensure reproducible chip formation for cast iron; depending on the cutter body and parameters it can be used in both productive roughing and semi‑finishing applications.

Can this insert be integrated into existing milling systems?
Yes, the plate size 09 and plate thickness 06 match common toolholder configurations, and the tolerance class M supports consistent assembly and repeatable results.

Walter Tools — The Walter AG (brand appearance: Walter Tools) is a leading manufacturer of precision cutting tools; the supplied article is original and factory‑new. Protected trademarks and trade names remain the property of their respective owners. This reference to brand names is for explanation only and does not indicate any affiliation.

Hersteller: Walter Tools