TCMT090204-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of high process security, reliable chip control, and coated carbide performance for productive cast-iron machining; order directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TCMT090204-MK4 WKK20S — Triangle 60° indexable insert for cast iron machining, Walter Tools

TCMT090204-MK4 WKK20S is an indexable turning/drilling insert designed for efficient machining of cast iron components, combining a Tiger·tec Silver coating with a robust MK4 chipbreaker.

• Tiger·tec Silver coated carbide
• Optimised for cast iron machining
• MK4 chipbreaker for reliable chip control
• Triangle 60° with 0.4 mm corner radius

High-performance coating for consistent productivity

The Tiger·tec Silver surface treatment delivers a coated carbide layer engineered for abrasive resistance and stable cutting behaviour when working with cast iron. This microstructure reduces flank wear and supports longer intervals between tool changes, which directly improves machine uptime. As a result, shops experience a measurable increase in throughput and lower process interruptions, while maintaining consistent component tolerances. The material combination and coating technology target the short, brittle chips typical of cast iron, translating into predictable tool life and fewer edge failures.

Geometry that improves stability and reduces set-up time

The triangular 60° configuration and 0.4 mm corner radius provide a compact cutting edge geometry that is well suited to gnawing cuts and interrupted surfaces common in grey and nodular castings. The 7° clearance angle reduces rubbing and heat build-up at the flank, enhancing dimensional stability during longer cuts. Together with the MK4 chipbreaker, this geometry offers controlled chip formation and evacuation, lowering the need for frequent manual chip clearing and enabling steadier cycle times across production batches.

Process safety and repeatable results for production environments

Built to Walter Tools’ quality standards, the WKK20S grade provides a balance between wear resistance and toughness appropriate for abrasive cast-iron grades. The insert’s design supports predictable wear patterns and repeatable performance across multiple components, which helps to reduce scrap rates and inspection overhead. In automated or lights-out operations, this repeatability becomes a tangible economic advantage: fewer unplanned tool changes, less downtime and a more stable manufacturing rhythm.

Practical application notes and benefits for workshop planners

The insert suits a range of turning and drilling-upboring applications where cast iron is the predominant workpiece material. Its MK4 chip control reduces the risk of long, entangling swarf and supports safer machining at higher material removal rates. For maintenance planners and process engineers, the insert’s combination of coating and geometry often results in lower indirect costs—less downtime, reduced tool inventory turnover and simpler reconditioning cycles. For shops requiring tailored cutting data, Metav Werkzeuge’s consultants can advise on feeds and speeds adapted to machine rigidity and part geometry.

For application-specific recommendations or rapid delivery of Walter Tools' TCMT090204-MK4 WKK20S inserts, contact Metav Werkzeuge for expert guidance and ordering via info@metav-werkzeuge.com or call +49 2822 7131930.

Technical Data

• SKU: TCMT090204-MK4-WKK20S-WALTER
• Designation: TCMT090204-MK4 WKK20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WKK20S

Numbers / Core technical data

• Plate size: 09
• Thickness: 02
• Corner radius: 0.4 mm
• Relief angle: 7°
• Plate form: Triangle 60°
• Tolerance class: M

Special features / Applications

• Coating: Tiger·tec Silver (coated carbide)
• Chipbreaker: MK4
• Material application: Cast iron
• Product type: Indexable insert for drilling/turning

FAQ

What materials is this insert designed for?
The TCMT090204-MK4 WKK20S insert by Walter Tools is optimised for cast iron machined parts and the WKK20S grade targets abrasive wear typical of such materials.

How does the MK4 chipbreaker affect machining performance?
The MK4 chipbreaker on the TCMT090204-MK4 WKK20S promotes short, controllable chips, improving evacuation and reducing the risk of chip entanglement in cast-iron turning operations.

Is the coating suitable for high-speed applications?
The Tiger·tec Silver coating increases wear resistance and thermal stability, making the insert well suited to sustained cutting speeds used in productive cast-iron machining, while supporting consistent tool life.

Which insert geometry supports interrupted cuts and roughing?
The 60° triangular form combined with a 0.4 mm corner radius and 7° relief improves edge strength and stability, making this insert appropriate for interrupted cuts and robust roughing passes in cast iron.

Can this insert be used in automated production with lights-out shifts?
Yes; the WKK20S grade and coated carbide construction provide repeatable wear behaviour and process security suited to automated or unattended production where predictable tool life is essential.

Manufacturer: Walter Tools; Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen; Germany

Protected trademarks and trade names are the property of their respective owners. Brand names and registered product designations are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered item is original, factory-new merchandise from Walter Tools.