SNMG150612-MK5 WKK20S Wendeplatten - Walter Tools

Benefit from the combination of durable coated carbide, reliable chip control and high process stability for efficient turning of cast iron components; this insert reduces downtime and tooling cost while delivering consistent surface quality. Order directly via Metav Werkzeuge or consult the technical team for process recommendations.

SNMG150612-MK5 WKK20S indexable insert — Tiger·tec Silver, for cast iron (Walter Tools)

The SNMG150612-MK5 WKK20S is a square 90° indexable turning insert engineered for productive machining of cast iron, combining a specialised chipformer with a robust coated-carbide grade.

• Tiger·tec Silver coating for long tool life
• Grade WKK20S optimised for cast iron
• Square 90° form with 1.2 mm corner radius
• MK5 chipbreaker for controlled chip formation

Consistent wear resistance for predictable process efficiency

The combination of Tiger·tec Silver coating and the WKK20S grade results in a coated carbide insert that is optimised to resist abrasive wear typical of cast iron machining. This chemistry and coating pairing extends tool life under intermittent cutting conditions and supports steady cutting parameters, which in turn reduces unexpected tool changes and improves overall machine utilisation. The result is measurable productivity gains and a lower cost per component through longer edge life and fewer interventions.

Stable, controlled chips for safer, faster turning of cast iron

Engineered specifically for material group K (cast iron), the insert’s MK5 chipbreaker delivers short, easy-to-manage chips that reduce the risk of tangling and enable higher feed rates in many operations. The chipformer is designed to match the brittle chip behaviour of cast irons, converting short breakage into stable evacuation. This stability helps maintain uninterrupted cycles and contributes to consistent surface finish without complex toolpath adjustments.

Robust geometry that supports reliable setups and repeatable quality

The square 90° plate geometry with a 1.2 mm corner radius and negative rake 0° gives a strong cutting edge and predictable wear progression. This geometry simplifies indexing strategy—four usable cutting edges per insert—while the corner radius balances edge strength and surface integrity. The insert’s format supports straightforward clamping and repeatable alignment, which reduces setup time and supports stable tolerances in serial production.

Practical choice backed by recognised tooling expertise

As an application-focused turning solution, this insert is suited for demanding cast-iron operations where process reliability and ease of use matter. The combination of grade, coating and chipbreaker means fewer trial cuts and accelerated ramp-up to production parameters. For additional application support, Metav Werkzeuge offers process advice and cutting-data recommendations to match machine and component requirements.

Contact Metav Werkzeuge for tailored cutting data and ordering of Walter Tools inserts – expert consultation and fast delivery guidance available from Metav Werkzeuge.

Technical Data

• SKU: SNMG150612-MK5-WKK20S-WALTER
• Product: Indexable turning insert SNMG150612-MK5 WKK20S
• Manufacturer: Walter Tools
• Grade: WKK20S
• Series: Tiger·tec Silver

Core data

• Insert shape: Square 90°
• Inscribed circle / size: 15
• Thickness: 06
• Corner radius: 1.2 mm
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Chipbreaker: MK5
• Coating technology: Tiger·tec Silver (coated carbide)
• Primary application: cast iron
• Execution: G
• Plate form: Quadrat 90°

FAQ

What materials is this insert intended for?
This insert is intended primarily for cast iron applications; the WKK20S grade and Tiger·tec Silver coating are tuned for abrasive wear and the short, breaking chips typical of cast iron.

How does the MK5 chipbreaker affect machining?
The MK5 chipbreaker produces short, controlled chips in cast iron turning, improving chip evacuation and enabling steadier feeds and safer operation with less manual intervention.

Can the insert be indexed to use multiple cutting edges?
Yes, the square 90° geometry provides four usable cutting edges per insert, allowing fast indexing and reduced tooling cost per edge.

Which features contribute most to tool life?
The combination of the Tiger·tec Silver coating and the WKK20S coated-carbide grade delivers high abrasive-wear resistance and a stable cutting edge, which together extend effective tool life in cast iron machining.

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