CPGT050204-MK4 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of proven wear resistance, precise geometry and consistent chip control for reliable machining of cast iron; increase uptime with the high-performance Tiger‑tec Silver grade and request tailored cutting data from Metav Werkzeuge for seamless integration.

CPGT050204-MK4 WKK20S – Indexable Turning Insert for Cast Iron, Tiger‑tec Silver | Walter Tools

The CPGT050204-MK4 WKK20S is a rhombic 80° indexable turning insert designed for productive machining of cast iron components, offering a coated carbide grade optimised for abrasive, short-chip materials.

• Tiger‑tec Silver coating for extended tool life
• WKK20S grade optimised for cast iron
• Rhombic 80° geometry for versatile turning
• 11° clearance and 0.4 mm corner radius

Durable coating and material pairing for consistent performance

The combination of Tiger‑tec Silver coating and the WKK20S carbide grade provides a measurable advantage when machining abrasive cast iron. The specialised coating reduces flank and crater wear, which translates into longer service intervals and more predictable tool life. For production environments this reliability supports continuous operation and reduces machining variability, ensuring that the insert maintains dimensional stability even under interrupted cuts or heavy feed conditions.

Geometry and chip control that improve process security

The rhombic 80° shape and the chipbreaker MK4 are engineered to control the short, brittle chips typical of cast iron; this improves evacuation and minimises re-cutting. The 11° clearance prevents flank rubbing and helps to maintain a clean cutting edge, while the modest corner radius of 0.4 mm balances edge strength with surface finish—resulting in repeatable component quality and fewer rejected parts in series production.

Practical advantages for workshop integration and tool management

As an indexable turning insert, compatibility with standard toolholders and fast tool changes contribute directly to shop-floor efficiency. The insert's tolerance class G supports predictable seating and repeatable positioning, simplifying tool set-up and reducing downtime. Where process optimisation is required, pairing these inserts with appropriate cutting parameters enhances productivity and helps to meet throughput and surface-finish targets in cast-iron applications.

Contact Metav Werkzeuge for cutting data sheets, application recommendations or to discuss how the Tiger‑tec Silver WKK20S insert can be integrated into existing tool systems — eMail: info@metav-werkzeuge.com | Phone: +49 2822 7131930

Technical Data

• Article number: CPGT050204-MK4-WKK20S-WALTER
• Product designation: Drehwendeschneidplatte / indexable turning insert
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Grade: WKK20S

Facts

• Clearance angle: 11°
• Corner radius: 0.4 mm
• Insert size: 05
• Plate thickness: 02
• Tolerance class: G

Special features

• Coating: Tiger‑tec Silver
• Chipbreaker: MK4
• Shape: Rhombic 80°
• Material suitability: cast iron (ISO group K)
• Designation: CPGT050204-MK4 WKK20S

FAQ

Which materials is this insert intended for?
The CPGT050204-MK4 WKK20S from Walter Tools is intended primarily for cast iron (ISO group K), with the grade and coating optimised for abrasive, short‑chip behaviour.

What benefits does the Tiger‑tec Silver coating provide?
The Tiger‑tec Silver coating on the WKK20S grade increases wear resistance and thermal stability, which helps to extend effective tool life and maintain cutting-edge integrity during extended runs.

How does the MK4 chipbreaker affect machining?
The MK4 chipbreaker is designed for reliable chip control in cast iron, producing short, manageable chips that are easier to evacuate and less likely to interfere with the cutting process.

Is the rhombic 80° geometry suitable for shoulder and profile turning?
Yes, the rhombic 80° geometry provides a versatile cutting angle that performs well in general turning operations, offering a balance between strength and accessibility for shoulder and profile work.

What does the 11° clearance and 0.4 mm radius mean for surface finish?
An 11° clearance reduces rubbing at the flank face, while a 0.4 mm corner radius offers improved edge robustness with a favourable surface finish for typical cast‑iron components.

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

Protected trademarks and trade names remain the property of their respective owners. Walter Tools is mentioned for product identification purposes only. The offered article is an original, factory‑new product of the manufacturer. There is no affiliation between Metav Werkzeuge and the trademark owners.