VBMT160404-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from a combination of high wear resistance, reliable chip control and consistent tolerance class that keeps turning cycles stable; the Tiger‑tec Silver grade and MK4 chipbreaker ensure productive machining of cast iron and predictable tool life — order details and availability via Metav Werkzeuge or consult our specialists for application advice.

VBMT160404-MK4 WKK20S – Turning insert, Tiger‑tec Silver for cast iron | Walter Tools

The VBMT160404-MK4 WKK20S is a rhombic 35° turning insert engineered for productive machining of cast iron, offering a coated carbide grade optimised for abrasive cast materials.

• Tiger‑tec Silver coating for robust wear resistance
• Optimised for cast iron machining (ISO group K)
• Rhombic 35° form with 0.4 mm corner radius
• MK4 chipbreaker and 5° clearance for secure chip control

Increased throughput through optimised wear resistance

The coated carbide grade from the Tiger‑tec Silver series provides enhanced wear resistance and temperature stability, which directly translates into longer tool life and fewer indexings. The WKK20S specification is tailored to the abrasive nature of cast iron, so the insert retains edge integrity under intermittent, brittle-chip conditions. By choosing a coating and grade aligned to the application, machine shops achieve higher machining rates and reduced downtime, supporting predictable process planning and consistent component quality.

Consistent chip control for fewer interruptions

Built with the MK4 chipbreaker and a 35° rhombic form, the geometry delivers controlled chip formation and evacuation when turning cast iron, reducing the risk of built-up edge and workpiece surface damage. The modest 5° clearance minimises flank rubbing while maintaining cutting stability, which is especially valuable during plunge cuts or profile turning. Together these features make the insert suitable for steady material removal and improved surface finishes, lowering the need for secondary operations and rework.

Practical dimensions and reliable tolerances for everyday use

The insert’s designation indicates the standard format and handling expected in modern turning operations: 16 mm size, a plate thickness marked as 04 and a 0.4 mm corner radius for a balance between edge strength and finish capability. The tolerance class M ensures repeatable seating and alignment in common toolholders, simplifying setup and reducing fixture verification time. These characteristics support quick tool changes and keep cycle times predictable on batch production runs.

For tailored recommendations on integrating the Walter Tools Tiger‑tec Silver WKK20S insert into production, contact Metav Werkzeuge for technical guidance and current availability at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number / SKU: VBMT160404-MK4-WKK20S-WALTER
• Name / Label: Drehwendeschneidplatte VBMT160404-MK4 WKK20S Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series / Grade: Tiger-tec Silver / WKK20S

Facts

• Size / Inscribed circle: 16 mm
• Corner radius: 0.4 mm
• Clearance angle: 5°
• Shape: Rhombus 35°
• Plate thickness: 04
• Tolerance class: M

Special features

• Coating / Technology: Tiger‑tec Silver
• Chipbreaker: MK4
• Material suitability: cast iron (ISO group K)
• Grade type: coated carbide

FAQ

What materials is this insert designed for?
The VBMT160404-MK4 WKK20S from Walter Tools is optimised for cast iron applications (ISO group K), with a coated carbide grade suited to abrasive and short‑chip conditions.

How does the MK4 chipbreaker improve performance?
The MK4 chipbreaker promotes predictable chip formation and evacuation during turning, reducing interruptions and improving surface finish for cast iron components.

What does the designation VBMT160404 indicate?
The code denotes the insert format and geometry family; the VBMT family with the 16 size and 04 thickness corresponds to common turning insert dimensions used in standard toolholders.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no association between our company and the named brands. The item offered is original factory‑new merchandise of the manufacturer.