VBMT160408-FK6 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating, optimised FK6 chip control and a robust 0.8 mm corner radius for reliable cast iron turning and increased productivity. Order the VBMT160408-FK6 WKK20S directly via Metav Werkzeuge or ask our consultants if needed.

VBMT160408-FK6 WKK20S indexable turning insert, Tiger‑tec Silver, for cast iron – Walter Tools

The VBMT160408-FK6 WKK20S is an indexable turning insert engineered for productive cast iron machining, combining a Tiger‑tec Silver-coated cutting grade with an FK6 chipbreaker for stable, repeatable results.

• Tiger‑tec Silver coating for longer tool life
• Optimised FK6 chipbreaker for cast iron
• Rhombic 35° form with 0.8 mm corner radius
• 5° clearance and 4 mm plate thickness

High productivity for abrasive cast iron work

The combination of the WKK20S grade and Tiger‑tec Silver coating targets the specific challenges of abrasive cast iron. The coated carbide composition provides improved wear resistance and stable cutting behaviour, which reduces tool changes and downtime. As a result, cycle times are shortened while component quality remains consistent. The insert is matched to ISO group K, indicating suitability for a wide range of cast iron applications and ensuring predictable performance in batch and continuous production.

Better chip control and surface quality with the FK6 geometry

The FK6 chipbreaker is designed to shape and break chips reliably when turning cast iron, reducing the risk of long, stringy swarf and minimising operator intervention. Combined with the rhombic 35° form and a 0.8 mm corner radius, the geometry delivers a compromise between a durable cutting edge and a fine surface finish. In practice, this means fewer secondary operations and improved process stability, especially on interrupted cuts or varying workpiece sections.

Process security and easy integration in tool systems

Tolerance class M and the standard VBMT160408-FK6 ISO designation allow straightforward replacement and reproducible set-ups across toolholders. The modest 5° clearance angle and a plate thickness corresponding to the 04 series give mechanical stability under heavy cutting conditions. These attributes support a predictable service life and enable planners to calculate tool consumption more accurately, improving cost-efficiency in serial production. The robust design from Walter Tools also contributes to reduced scrap rates and higher first-pass yields.

For reliable cast iron turning with Walter Tools' Tiger‑tec Silver inserts, contact Metav Werkzeuge for tailored application advice and current availability via info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: VBMT160408-FK6-WKK20S-WALTER
• Type: Drehwendeschneidplatte
• Manufacturer: Walter Tools

Data

• ISO designation: VBMT160408-FK6 WKK20S
• Series: Tiger‑tec Silver
• Tolerance class: M
• Size: 16
• Plate thickness: 04

Special features

• Coating / grade: WKK20S (coated carbide)
• Chipbreaker: FK6
• Plate form: Rhombus 35°
• Clearance angle: 5°
• Corner radius: 0.8 mm
• Material application: Cast iron (K)

FAQ

What materials is this insert intended for? The VBMT160408-FK6 WKK20S is designed primarily for cast iron (ISO group K) machining and performs reliably on abrasive cast materials.

How does the FK6 chipbreaker improve the machining process? The FK6 chipbreaker on the VBMT160408-FK6 WKK20S shapes and fractures chips consistently, improving chip control and reducing interruptions during turning of cast iron.

What benefits does the Tiger‑tec Silver coating provide? The Tiger‑tec Silver coating enhances wear resistance and thermal stability, extending effective tool life and supporting stable cutting under demanding cast iron conditions.

Is the insert compatible with standard toolholders? Yes, the insert follows the VBMT ISO geometry and tolerance class M, enabling direct replacement in matching holders and predictable set-up repeatability.

What corner radius should be expected for surface finish and edge strength? This insert features a 0.8 mm corner radius, which balances a robust cutting edge with the ability to achieve a good surface finish on cast parts.

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