TCMT16T308-FK6 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver wear resistance, an FK6 chipbreaker for controlled chip formation, and a compact triangular geometry to achieve reliable cast iron turning with low downtime; order directly via Metav Werkzeuge or consult our specialists for application guidance.

TCMT16T308-FK6 WKK20S indexable insert for cast iron machining — Walter Tools

A TCMT16T308-FK6 WKK20S indexable insert designed for turning and boring operations, optimised for cast iron machining and equipped with Tiger·tec Silver coating for extended tool life

• Tiger·tec Silver coating for wear resistance
• Optimised for cast iron machining (ISO K)
• Triangle 60° form with 0.8 mm corner radius
• FK6 chipbreaker for reliable chip control

High productivity and predictable tool life for cast iron components

The coated carbide grade is engineered for abrasive cast iron applications: the WKK20S grade within the Tiger·tec Silver family balances hardness and toughness to reduce flank wear and maintain a stable cutting edge. This results in a consistent tool life and fewer unexpected changeovers, which supports uninterrupted batch production. The dedicated chip control design mitigates short, brittle chips typical of cast materials, reducing the risk of tool clogging and machine interruptions while maintaining surface integrity on the workpiece.

Geometry and tolerances that support repeatable accuracy

A robust triangle 60° form with a 0.8 mm corner radius and 7° clearance provides an optimal compromise between edge strength and finishing capability. The insert’s T3 thickness and tolerance class M ensure precise seating in compatible toolholders, which reduces indexing errors and contributes to constant dimensional results. The relatively large corner radius helps absorb cutting forces during interrupted cuts, improving edge stability and surface finish without sacrificing component tolerances.

Seamless integration into production systems and selection advice

The FK6 chipbreaker is tailored for the fracture-prone chips of grey and nodular cast irons (ISO group K), promoting short, controllable chips under typical turning parameters. The insert is suitable for both roughing and finishing passes when appropriate feeds and speeds are selected. When specifying tooling, match the insert seat and clamping system to the triangular 60° form to ensure correct clamping and heat dissipation; compatible toolholders for turning and boring will accept the indexable geometry and allow straightforward re-indexing for minimal set-up time. For applications requiring predictable wear behaviour and broad cast iron coverage, this grade offers a practical balance of economy and performance.

For reliable cast iron performance with Walter Tools’ Tiger·tec Silver grade, contact Metav Werkzeuge for tailored application support and fast supply — info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: TCMT16T308-FK6-WKK20S-WALTER
• Product label: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte TCMT16T308-FK6 WKK20S Walter Tools
• Manufacturer: Walter Tools

Facts

• Insert size: 16
• Thickness: T3
• Clearance angle: 7°
• Corner radius: 0.8 mm
• Shape: Triangle 60°
• Grade: WKK20S

Special features

• Coating technology: Tiger·tec Silver
• Chipbreaker: FK6
• Series: Tiger-tec Silver
• Tolerance class: M
• Material group suitability: K (cast iron)

FAQ

What materials is this insert best suited to machine?
The TCMT16T308-FK6 WKK20S is optimised for cast iron applications (ISO group K); the WKK20S grade and Tiger·tec Silver coating address the abrasive and brittle nature of these materials.

What are the key geometric specifications of the insert?
The insert has a triangle 60° form, size 16, T3 thickness, 0.8 mm corner radius and 7° clearance, which together ensure a stable cutting edge and consistent seating in compatible toolholders.

Which chipbreaker is fitted and what benefit does it provide?
The FK6 chipbreaker delivers controlled, short chips when turning cast iron, improving chip evacuation and reducing the likelihood of built-up edge or clogging during operation.

Can this insert be used for both turning and boring operations?
Yes, the product is designed as an indexable insert for turning and boring; correct toolholder matching is important to ensure secure clamping and optimal heat dissipation with the TCMT16T308-FK6 WKK20S.

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

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