ACMT060204R-G55 WKK25G WKK25G Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Gold coating, a dedicated WKK25G grade for abrasive materials, and the G55 chipbreaker for consistent chip control; order directly via Metav Werkzeuge or consult our team for tailored recommendations.

ACMT060204R-G55 WKK25G milling insert (Tiger·tec Gold) by Walter Tools — for cast iron machining

ACMT060204R-G55 WKK25G is an indexable milling insert engineered for efficient machining of cast iron components, combining a wear-resistant grade with a dedicated chipbreaker and a parallelogram geometry.

• Tiger·tec Gold coated for wear resistance
• Optimised for cast iron (ISO group K)
• Parallelogram 85° geometry for secure clamping
• Chipbreaker G55 for controlled, short chips

Consistent performance on abrasive cast iron

The combination of the WKK25G grade and the Tiger·tec Gold coating delivers a stable cutting edge designed to resist the abrasive wear characteristic of cast iron. The grade is specifically tuned to manage the short, breaking chips typical of cast materials, which results in fewer interruptions and a more predictable tool life. The G55 chipbreaker actively forms and controls chips, reducing the risk of re-cutting and helping to maintain a steady surface finish; this leads to measurable productivity gains and lower overall tooling costs. Technical terms: the coating increases hardness and thermal resistance, meaning less flank wear under comparable cutting conditions.

Robust geometry for reliable milling and repeatability

The insert’s parallelogram 85° shape and 7° relief angle ensure a secure seat in milling cutters and consistent engagement with the workpiece, while the 0.4 mm corner radius balances edge strength with surface quality. A nominal thickness of 2 mm provides structural rigidity for interrupted cuts common in cast iron components. Tolerance class M indicates a standardised dimensional accuracy that supports interchangeability and predictable tool setting. In practice, this geometry reduces chatter, improves tool life stability, and simplifies process planning for series production.

Application focus and process advice

Designed for machining cast iron per ISO grouping, the insert suits a range of finishing and mid-range roughing tasks where chip control and edge life are priorities. The WKK25G sort is categorised for abrasive, short-chip conditions and is therefore particularly effective when cutting grey and nodular cast irons. For best results use a toolholder matched to the parallelogram seat and ensure stable clamping; the controlled chip formation from the G55 breaker will help maintain coolant flow and surface integrity. If process parameters require fine-tuning or if there is uncertainty about compatibility with a specific cast grade, consult the technical team for tailored feed and speed recommendations.

Order Walter Tools Tiger·tec Gold inserts via Metav Werkzeuge for consistent cast iron machining performance — contact Metav Werkzeuge for application advice and local availability (info@metav-werkzeuge.com / +49 2822 7131930)

Technical data

• SKU: ACMT060204R-G55-WKK25G-WALTER
• Designation: ACMT060204R-G55 WKK25G
• Product type: Milling insert (indexable insert)
• Manufacturer: Walter Tools

Core data

• Grade: WKK25G
• Coating: Tiger·tec Gold
• Chipbreaker: G55
• Plate form: Parallelogram 85°
• Corner radius: 0.4 mm
• Relief angle: 7°
• Plate size: 06
• Thickness: 2 mm
• Tolerance class: M
• Execution: T

Special features

• Material application: cast iron (ISO group K)
• Sorteneinsatz: wear-resistant for abrasive cast materials
• Series: Tiger·tec Gold
• Material symbol: K
• Story trigger: indexable inserts

FAQ

Which materials is this insert intended for?
The ACMT060204R-G55 WKK25G insert is intended primarily for cast iron (ISO group K), with the WKK25G grade optimised for abrasive, short-chip conditions encountered in such materials.

How does the Tiger·tec Gold coating benefit machining?
The Tiger·tec Gold coating on the ACMT060204R-G55 enhances thermal resistance and wear protection, which contributes to longer edge life and improved process stability when machining abrasive cast iron.

What role does the G55 chipbreaker play?
The G55 chipbreaker produces short, controlled chips, reducing the risk of chip entanglement and improving surface quality; this is particularly useful when machining grey or nodular cast iron.

Which insert geometry suits interrupted cutting?
The parallelogram 85° form and 0.4 mm corner radius of this insert provide a rigid seat and robust cutting edge, making it suitable for interrupted and stable milling operations in cast iron applications.

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

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