TCMW110208-RK6 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the Tiger·tec Silver coating and the WKK20S grade for stable, wear‑resistant performance in cast‑iron machining; the combination of a RK6 chipbreaker and a 60° triangular form reduces downtime through reliable chip control. Order directly via Metav Werkzeuge or consult the sales team for application support.

TCMW110208‑RK6 WKK20S — indexable turning/boring insert, Tiger·tec Silver, for cast iron, Walter Tools

TCMW110208‑RK6 WKK20S is a coated carbide indexable insert designed for machining cast iron with optimised chip control and reliable edge performance

• TCMW110208‑RK6 WKK20S by Walter Tools
• Tiger·tec Silver coating for wear resistance
• Optimised for cast iron machining
• Triangle 60°, 7° relief, 0.8 mm nose radius

Extended tool life through a hard, coated grade

The WKK20S grade, part of the Tiger·tec Silver series, is a coated carbide formulation developed specifically for abrasive cast‑iron applications. Its composition and coating reduce flank and crater wear when turning cast materials, which commonly produce short, brittle chips. As a result, tools last longer and require fewer interruptions for changeovers, increasing overall throughput. The coated surface also improves heat resistance during sustained cutting, supporting consistent cutting parameters and predictable edge life.

Geometry engineered for consistent surfaces and chip control

A 60° triangular shape with a 0.8 mm nose radius and 7° relief creates a balance between strength and finish: the nose radius helps achieve a reliable surface quality while the relief angle reduces rubbing on the flank, lowering heat generation. The integrated RK6 chipbreaker produces short, controlled chips when machining cast iron, easing chip evacuation and protecting the workpiece and toolholder from entanglement. These geometric choices translate directly into repeatable component quality and fewer rejects.

Stable process capability and predictable production rhythm

Manufactured to tolerance class M, the insert offers consistent seat and location accuracy for reliable toolholder fitment. The coated grade and chipbreaker combination support a stable cutting edge, reducing the frequency of unscheduled interventions. For production environments where reproducibility and uptime matter, this insert contributes to a measurable improvement in process stability and overall productivity, particularly on abrasive cast‑iron workpieces (material group K).

Practical integration into machining setups

As an indexable insert, the design allows multiple cutting edges to be used sequentially, which is cost‑effective in high‑volume operations. The triangular 60° form provides three usable edges per insert, and the RK6 chipbreaker is suited to interrupted and continuous cast‑iron cuts. Installation requires a compatible toolholder for the TCMW geometry; matching the insert to the correct seat and clamping torque guarantees the expected performance. For tailored recommendations on toolholders and cutting data, Metav Werkzeuge can provide application guidance.

For reliable cast‑iron machining with Walter Tools' Tiger·tec Silver inserts, contact Metav Werkzeuge for technical advice and ordering information at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: TCMW110208‑RK6‑WKK20S‑WALTER
• Manufacturer: Walter Tools
• Product type: Indexable turning/boring insert
• Series: Tiger·tec Silver
• Grade: WKK20S
• Chipbreaker: RK6

Facts

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

Special features

• Coated carbide grade WKK20S (Tiger·tec Silver)
• Optimised for cast iron (K)
• Short‑chip RK6 geometry
• 3 cutting edges per triangular insert
• Stable, wear‑resistant coating for abrasive materials

FAQ

Which workpieces is this insert intended for?
The TCMW110208‑RK6 WKK20S insert is optimised for cast iron (material group K); the WKK20S grade and RK6 chipbreaker are tailored to the abrasive nature and short‑chip behaviour of cast components.

How does the RK6 chipbreaker affect machining?
The RK6 chipbreaker produces short, broken chips on cast iron, improving chip evacuation and reducing the risk of chip‑related damage to the workpiece and toolholder when using the TCMW110208‑RK6 WKK20S insert.

What role does the 0.8 mm nose radius play?
A 0.8 mm nose radius offers a compromise between strength and surface finish: it contributes to a consistent workpiece finish while maintaining sufficient edge strength for stable cutting with the coated grade.

Can the insert be indexed to use multiple edges?
Yes — the triangular 60° form provides three usable cutting edges, allowing economical re‑indexing of the TCMW110208‑RK6 WKK20S insert before replacement.

What does tolerance class M mean for tool mounting?
Tolerance class M indicates a consistent dimensional and positional tolerance, ensuring repeatable seating in compatible toolholders and predictable cutting behaviour for production setups.

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

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