TCMT110208-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from the combination of Tiger‑tec Silver coating and the WKK20S grade for durable, productive cast‑iron turning; the MK4 chipbreaker and a 7° relief angle ensure controlled chip formation and reliable edge life. Order directly via Metav Werkzeuge or ask the consultants for application support.

TCMT110208‑MK4 WKK20S – indexable turning insert, Tiger‑tec Silver coating for cast iron | Walter Tools

TCMT110208‑MK4 WKK20S is a triangular 60° indexable insert with a 7° relief angle, designed for efficient machining of cast‑iron workpieces.

• Tiger‑tec Silver for improved wear resistance
• Optimised for cast‑iron machining ISO K
• Triangular 60° form with 0.8 mm corner radius
• MK4 chipbreaker for controlled short chips

High wear resistance for abrasive cast‑iron work

The combination of the Tiger‑tec Silver coating and the WKK20S carbide grade is tailored to the abrasive nature of cast‑iron materials (ISO K). The coating is engineered to reduce abrasive wear and improve thermal stability, which translates into longer edge life and fewer interruptions for index changes. Because many cast‑iron materials produce short, brittle chips, the insert’s geometry and grade are matched to maintain consistent cutting performance under interrupted cuts. This configuration supports a stable process and predictable part quality in series production.

Consistent chip control and secure cutting geometry

Mechanical stability is delivered by the MK4 chipbreaker together with the triangular 60° plate form and a 0.8 mm corner radius, producing short, controllable chips and reducing vibration on the toolholder. The 7° relief angle frees the cutting edge to run smoothly, while the plate size (11) and thickness code (02) provide a compact, rigid package that suits many toolholders. These design choices result in a reliable cutting edge that preserves dimensional accuracy and reduces the risk of built‑up edge or premature tool wear.

Practical integration for productive turning lines

Designed for industrial turning operations, the insert is supplied in the Walter Tools Tiger‑tec Silver series and is intended for productive machining of cast‑iron components where repeatable performance matters. The clear specification—grade WKK20S, MK4 chipbreaker and defined geometry—allows process engineers to select the insert with confidence for batch production or single‑part manufacturing. Cutting data should be chosen according to the workpiece grade and operation type; when set correctly, tool life and process stability are maximised, contributing directly to efficient cycle times and lower overall production costs.

Contact Metav Werkzeuge for a tailored recommendation on integrating Walter Tools Tiger‑tec Silver inserts into the production process — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss availability and cutting data

Technical data

• SKU: TCMT110208-MK4-WKK20S-WALTER
• Designation: TCMT110208‑MK4 WKK20S
• Product type: Drilling/boring indexable insert / turning indexable insert
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Grade: WKK20S

Facts

• Relief angle: 7°
• Corner radius: 0.8 mm
• Plate form: triangular 60°
• Plate size: 11
• Plate thickness code: 02
• Tolerance class: M

Special features

• Chipbreaker: MK4
• Material group: cast‑iron (ISO K)
• Execution: T
• Material code: K
• Cast‑iron application: yes

FAQ

What materials is this insert best suited for?
The TCMT110208‑MK4 WKK20S insert is optimised for cast‑iron machining (ISO K); the WKK20S grade and the Tiger‑tec Silver coating are chosen for abrasive wear resistance typical of these materials.

How does the MK4 chipbreaker influence machining?
The MK4 chipbreaker promotes short, consistent chips and improves chip control in interrupted or steady cuts, reducing the risk of entanglement and helping to maintain surface quality with the TCMT110208‑MK4 WKK20S insert.

What does the 0.8 mm corner radius deliver in turning operations?
A 0.8 mm corner radius balances edge strength and finish; it supports stable cutting forces and provides a good compromise between tool life and achievable surface quality when using the TCMT110208‑MK4 WKK20S insert.

Can the triangular 60° form be used for profile and roughing operations?
The triangular 60° geometry offers multiple indexed edges and rigidity that suit general turning and certain profiling tasks, while the grade and chipbreaker are geared towards efficient roughing in cast‑iron applications.

How should the Tiger‑tec Silver coating be interpreted for process planning?
The Tiger‑tec Silver coating enhances thermal stability and wear resistance, enabling higher productivity in abrasive environments; the coating with the WKK20S grade provides a good baseline for selecting cutting speeds and feeds for cast‑iron.

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

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