TCMW16T304-RK6 WKK20S WKK20S Wendeplatten - Walter Tools

Combining the Tiger‑tec Silver coating with the WKK20S carbide grade and an RK6 chipbreaker delivers reliable, wear‑resistant performance for cast iron machining; order the insert directly via Metav Werkzeuge or consult the technical team for application advice.

TCMW16T304-RK6 WKK20S indexable turning insert – Triangle 60°, Tiger‑tec Silver (Walter Tools)

TCMW16T304-RK6 WKK20S is an indexable turning and boring insert engineered for dependable, high‑productivity machining of cast iron components

• Tiger‑tec Silver coated grade WKK20S
• Optimised RK6 chipbreaker for cast iron
• Triangle 60° insert, 0.4 mm corner radius
• Clearance angle 7° for robust cutting

Boosted wear resistance for steady production

The combination of the Tiger‑tec Silver technology and the WKK20S coated carbide grade provides enhanced wear resistance tailored to abrasive cast iron applications. This coating technology reduces flank wear and helps maintain a consistent cutting edge life across long runs, which translates into fewer tool changes and higher uptime. Because the grade is formulated specifically for cast iron, the insert sustains cutting performance even under interrupted cuts and discontinuous chip forms typical of grey and nodular cast irons.

Controlled chip formation for safer machining

The RK6 chipbreaker is optimised for the fracturing and evacuation behaviour of cast iron chips, enabling predictable chip control and reduced risk of built‑up edge formation. Together with the triangle 60° geometry and 0.4 mm corner radius, the design balances edge strength and cutting stability, delivering cleaner surface finishes and minimised vibration. For operations where chip handling and machine cleanliness matter, this insert offers a pragmatic solution that improves operator safety and downstream handling.

Designed for practical integration and toolroom efficiency

The T3 thickness and 7° clearance angle make the insert straightforward to integrate into standard toolholders for turning and boring. The triangular form provides three indexable cutting edges per insert, lowering tooling costs per edge and simplifying inventory. Selecting this insert reduces setup complexity: fewer changes, predictable wear patterns and consistent tolerances support cycle‑time stability and efficient production planning.

Application guidance and selection rationale

Intended specifically for cast iron applications, the grade and chipformer combination is most effective in medium to high‑volume finishing and semi‑roughing where surface quality and tool life must be balanced. When choosing inserts, consider feed and depth of cut that match the 0.4 mm corner radius to avoid premature edge overload. For interrupted cuts or rougher cast surfaces, the robust geometry and coated grade help maintain process security and extend the period between regrinds or replacements.

Contact Metav Werkzeuge for availability and tailored advice on Walter Tools Tiger‑tec Silver inserts via info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: TCMW16T304-RK6-WKK20S-WALTER
• Description: Indexable turning and boring insert TCMW16T304-RK6 WKK20S (Walter Tools)
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Core specifications

• Clearance angle: 7°
• Edge radius: 0.4 mm
• Plate size: 16 mm
• Plate form: triangle 60°
• Thickness: T3
• Tolerance class: M
• Chipbreaker: RK6

Materials and features

• Carbide grade: WKK20S (coated carbide, Tiger‑tec Silver)
• Suitable for: cast iron (K)
• Geometry: triangle 60° offers three indexable edges
• Application focus: machining of cast iron components

FAQ

What materials is this insert designed for?
The TCMW16T304-RK6 WKK20S insert from Walter Tools is specifically formulated for machining cast iron (ISO group K) and offers wear resistance suited to abrasive cast materials.

How does the RK6 chipbreaker affect performance?
The RK6 chipbreaker promotes controlled chip breaking and reliable evacuation when cutting cast iron, improving surface finish and reducing the likelihood of built‑up edge on the insert.

Can this insert be used for roughing operations?
Yes, the robust triangular geometry and 0.4 mm corner radius make the insert appropriate for light to medium roughing and finishing in cast iron, while maintaining edge stability for interrupted cuts.

How many usable edges does the insert provide?
The triangle 60° shape yields three indexable cutting edges per insert, which helps to lower tooling costs per edge and simplifies replacement logistics.

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 named brands. The offered article is original, brand‑new factory goods of the manufacturer. The Walter brand is used for clarification of product origin.