SCMT120408-FK6 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver wear resistance, a FK6 chipbreaker for controlled chips and the 7° relief to maintain stable, productive turning of cast-iron components; order directly via Metav Werkzeuge or consult our advisers for application support.

SCMT120408-FK6 WKK20S turning insert — Tiger·tec Silver for cast iron, Walter Tools

The SCMT120408-FK6 WKK20S is a square 90° indexable turning insert optimised for efficient machining of cast iron components in industrial turning operations.

• Tiger·tec Silver coating for high wear resistance
• Designed for cast-iron machining (ISO K)
• FK6 chipbreaker for controlled chip formation
• Square 90° insert with 0.8 mm corner radius

Reliable results for cast-iron turning operations

The combination of the WKK20S grade and the Tiger·tec Silver coating delivers consistently low wear when machining abrasive cast-iron materials. The grade is tuned to the characteristic short, breaking chips of cast iron (designated ISO K), so the cutting edge keeps its geometry longer under typical loading. For production environments this means fewer insert changes and more predictable cycle times, improving overall throughput without sacrificing surface quality.

Engineered chip control and geometry for productivity

The FK6 chipbreaker is designed to produce short, stable chips when cutting cast iron, reducing the risk of chip entanglement and improving process reliability. Together with a relief angle of 7° and a 0.8 mm corner radius, the geometry supports secure cutting edge engagement and controlled cutting forces. These features help to maintain dimensional accuracy over extended tool life and simplify chip management at the machine interface.

Precision dimensions and tolerance for repeatable tool life

A square 90° insert form with a nominal size of 12 mm and a plate thickness of 4 mm provides a robust seat in the toolholder and good resistance to mechanical shock. The specified tolerance class M indicates consistent manufacturing precision and interchangeability between inserts and holders, supporting repeatable set-ups and reduced downtime. In practical terms this results in reliable part-to-part accuracy and less need for incremental adjustments in series production.

For dependable cast-iron performance choose Walter Tools' SCMT120408-FK6 WKK20S with Tiger·tec Silver grade — contact Metav Werkzeuge for tailored application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: SCMT120408-FK6-WKK20S-WALTER
• Item designation: SCMT120408-FK6 WKK20S
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series: Tiger·tec Silver
• Grade: WKK20S

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Insert size: 12 mm
• Thickness: 4 mm
• Tolerance class: M

Special features

• Chipbreaker: FK6
• Insert form: Square 90°
• Suitable for: Cast iron (ISO K)
• Execution: T

FAQ

Is this insert suitable for machining cast iron?
Yes. The SCMT120408-FK6 WKK20S from Walter Tools is specifically designed for cast iron (ISO K) applications and its WKK20S grade optimises wear resistance for these materials.

What benefit does the FK6 chipbreaker provide?
The FK6 chipbreaker produces short, controlled chips when turning cast iron, improving chip evacuation and reducing the risk of entanglement at the toolholder.

What are the key dimensions to consider for toolholder compatibility?
Key dimensions are 12 mm nominal insert size, 4 mm thickness and a 0.8 mm corner radius; these define seat fit and cutting edge engagement for compatible holders.

Can this insert be used for other materials besides cast iron?
The insert is optimised for ISO K materials (cast iron). For other materials, a different grade or geometry may be more appropriate to achieve optimal performance.

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