CPMT060208-MK4 WKK20S Wendeplatten - Walter Tools

Take advantage of the Tiger‑tec Silver coating and the WKK20S grade for reliable performance in cast‑iron turning; the MK4 chipbreaker and Rhombus 80° geometry ensure controlled chips and consistent surface quality. Order directly via Metav Werkzeuge or request advice from our specialists for the optimal toolholder and cutting data.

CPMT060208-MK4 WKK20S indexable turning insert – Tiger‑tec Silver, for cast iron, Walter Tools

The CPMT060208-MK4 WKK20S is a rhombic, 80° indexable insert designed for productive turning of cast iron components, fitted with a MK4 chipbreaker and the Tiger‑tec Silver coating for extended tool life.

High wear resistance for cast iron cutting Tiger‑tec Silver coating for improved process stability Rhombus 80° form for versatile turning applications MK4 chipbreaker for predictable chip control

Accurate chip control tailored to cast iron cutting

The coated carbide grade, WKK20S, is engineered specifically for abrasive cast‑iron workpieces. The combination of the Tiger‑tec Silver coating and the MK4 chipbreaker reduces flank wear and adapts to the characteristic short, brittle chips of grey and nodular cast iron. This yields more predictable machining cycles and longer tool life, which supports higher uptime in series production. The technical design tackles the most common cause‑and‑effect chain in cast‑iron turning: abrasive wear → surface degradation → reduced component consistency.

Stable geometry for reproducible turning results

Rhombus 80° geometry with a clearance angle of 11° and a corner radius of 0.8 delivers a balanced edge strength and surface finish. The insert’s format and tolerance class M contribute to repeatable seating in standard toolholders, so set‑up variation is reduced. For workshops seeking dependable component tolerances, the insert’s form minimises chatter and supports consistent dimensional outcomes, making it suitable for batch production where reproducibility matters.

Seamless integration into existing tool systems

The insert size and thickness codes (plate size 06, thickness 02) match common holder systems, enabling easy replacement without major process changes. The coated, PVD/CVD‑style technology within the Tiger‑tec Silver family provides a robust protective layer that improves edge stability at typical turning speeds for cast iron. Process planners benefit from a straightforward selection logic: the grade targets cast iron (material group K), the chipbreaker promotes safe chip evacuation, and the plate form fits conventional toolholders, simplifying tool inventory management.

Practical advantages that support productivity

Selecting this insert supports a cost‑efficient machining strategy through reduced insert changes and less scrap due to surface defects. The design focuses on one primary benefit per argument: wear resistance for abrasive materials, and controlled chips for safer, uninterrupted operation. Technical purchasers will appreciate the clear allocation to cast‑iron applications and the compatibility with established turning systems, allowing the insert to be adopted with minimal qualification effort.

For an application review or to order the Walter Tools CPMT060208-MK4 WKK20S, contact Metav Werkzeuge for tailored advice and delivery options via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CPMT060208-MK4-WKK20S-WALTER
• SKU: CPMT060208-MK4-WKK20S-WALTER
• Designation: CPMT060208-MK4
• Grade: WKK20S
• Series: Tiger‑tec Silver

Facts

• Clearance angle: 11°
• Corner radius: 0.8
• Plate size: 06
• Plate thickness: 02
• Shape: Rhombus 80°
• Tolerance class: M

Special features

• Chipbreaker: MK4
• Coating: Tiger‑tec Silver (coated carbide)
• Material suitability: cast iron (K)
• Execution: T
• Application focus: turning of cast‑iron materials

FAQ

Is this insert suitable for grey and nodular cast iron?
Yes. The CPMT060208-MK4 WKK20S from Walter Tools is formulated for cast‑iron machining and is optimised for the abrasive wear and short, breaking chips typical of these materials.

What advantages does the Tiger‑tec Silver coating provide?
The Tiger‑tec Silver coating on the WKK20S grade enhances edge stability and wear resistance, improving process reliability and extending the interval between index changes.

Which chipbreaker is fitted and what is its benefit?
The MK4 chipbreaker is integrated to promote consistent chip formation and evacuation, reducing the risk of entanglement and supporting uninterrupted turning cycles.

Can this insert be used in standard toolholders for 80° rhombic plates?
Yes. The Rhombus 80° form and standard size coding (06/02) allow the insert to be mounted in commonly used turning holders with compatible seatings.

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

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