VBMT160412-FK6 WKK20S WKK20S Wendeplatten - Walter Tools

The combination of a Tiger·tec Silver coating, a WKK20S grade optimised for Gusseisen and a stable Rhombic 35° geometry ensures reliable chip control and extended tool life in abrasive cast iron turning; order the insert directly via Metav Werkzeuge or request application advice from the consultants.

VBMT160412-FK6 WKK20S — Rhombic 35° indexable turning insert for cast iron (Tiger·tec Silver) — Walter Tools

The VBMT160412-FK6 WKK20S is a rhombic 35° indexable turning insert designed for productive machining of cast iron components, offering a coated cemented‑carbide grade optimised for abrasive wear and short, breaking chips.

• Tiger·tec Silver coated for wear resistance
• Optimised for abrasive cast iron machining
• Rhombic 35° geometry for versatile turning
• 1.2 mm corner radius for stable cutting

Consistent performance for cast iron operations

The combination of a coated cemented‑carbide substrate and the Tiger·tec Silver technology delivers high abrasion resistance and a stable cutting edge when machining Gusseisen. The WKK20S grade is formulated to manage the typically short, brittle chips of cast iron and to reduce flank wear under intermittent contact. In practice, this means fewer unscheduled tool changes, more predictable tool life and improved part consistency — benefits that translate directly into higher throughput and reduced production variance.

Geometry engineered for cutting stability and surface quality

The Rhombic 35° form and 1.2 mm corner radius combine to moderate cutting forces while maintaining a robust cutting edge. The insert’s FK6 chipbreaker is configured for reliable chip formation with short, easily evacuated fragments, which reduces risk of chip entanglement and improves process reliability. The plate size and thickness data are matched to industry standard toolholders, enabling quick indexation and repeatable seating accuracy. These geometric choices result in stable machining conditions and a consistent surface finish on cast iron components.

Integration and productivity advantages in series production

Tolerance class M and the systematic design of the insert support reproducible clamping and interchangeability across tool assemblies. The coated grade and chip control reduce the need for frequent coolant adjustments and allow for a stable cutting window, supporting higher material removal rates where appropriate. Operators benefit from predictable wear patterns and straightforward insert replacement, while process planners gain from a component that is suited to both single‑pass finishing and heavier roughing strategies in cast iron workflows.

Contact Metav Werkzeuge for tailored application recommendations on Walter Tools Tiger·tec Silver inserts and to ensure optimal set‑up for cast iron turning tasks

Technical data

• Article number: VBMT160412-FK6-WKK20S-WALTER
• Product type: Drehwendeschneidplatte
• Brand: Walter Tools
• Series: Tiger-tec Silver
• Grade: WKK20S
• ISO designation: VBMT160412-FK6 WKK20S

Core data

• Plate size: 16
• Plate thickness: 04
• Corner radius: 1,2 mm
• Relief angle: 5°
• Plate form: Rhombus 35°
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Chipbreaker: FK6
• Material suitability: Gusseisen (ISO group K)
• Sortenbeschreibung: beschichtetes Hartmetall

FAQ

What materials is this insert intended for?
The VBMT160412-FK6 WKK20S from Walter Tools is intended primarily for machining cast iron (ISO group K) and is optimised for the abrasive, short‑chipping behaviour of those materials.

What is the purpose of the Tiger·tec Silver coating?
The Tiger·tec Silver coating on the WKK20S grade improves wear resistance and thermal stability, which helps to extend the effective tool life of the Walter Tools turning insert under abrasive conditions.

How does the FK6 chipbreaker affect machining?
The FK6 chipbreaker is designed to produce short, controlled chips when cutting Gusseisen, reducing the risk of chip buildup and facilitating reliable evacuation in automated and manual setups.

Is the geometry compatible with standard toolholders?
The Rhombic 35° form and ISO designation VBMT160412-FK6 correspond to common clamping systems; the insert is intended for use in standard toolholders specified for VBMT plates.

What does tolerance class M mean for series production?
Tolerance class M denotes dimensional consistency that supports repeatable seating and interchangeability, aiding predictable performance and easier process control in production environments.

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 product names are mentioned solely for explanation. No affiliation is implied between Metav Werkzeuge and the named brands. The offered item is original factory‑new product of the stated manufacturer.