TNMA160412-RK5 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of Tiger·tec Silver performance and the WKK10S grade for reliable, productive cast iron turning; the triangular 60° geometry with an RK5 chipbreaker and 1.2 mm corner radius offers controlled short chips and long tool life. Order the inserts via Metav Werkzeuge or consult our specialists for application advice.

TNMA160412-RK5 WKK10S – Turning indexable insert, Tiger·tec Silver, for cast iron — Walter Tools

TNMA160412-RK5 WKK10S is a precision turning insert designed for efficient machining of cast iron components, combining a coated carbide grade with a triangular 60° geometry for robust performance

Tiger·tec Silver coated carbide WKK10S
Optimised for abrasive cast iron machining
Triangle 60° insert with 1.2 mm corner radius
RK5 chipbreaker for controlled short chips

Improved productivity through wear-resistant grade and coating

The TNMA160412-RK5 WKK10S turning insert uses the Tiger·tec Silver technology and a coated carbide substrate to deliver stable wear behaviour and extended edge life when cutting abrasive cast iron. The WKK10S grade is tuned for ISO group K (cast iron), reducing flank and crater wear in interrupted or continuous cuts. For production environments this translates into fewer tool changes, more consistent surface quality and an improved cost-in-use ratio. The coated surface also contributes to thermal resistance, allowing higher cutting parameters where machine rigidity permits.

Secure seating and predictable chip control for machining cycles

The triangular 60° plate geometry with a 1.2 mm corner radius and the RK5 chipbreaker are engineered for reliable chip formation and short, breakable chips during roughing and semi-finishing in cast iron. The 0° clearance (negative) geometry provides a strong cutting edge that resists edge chipping under heavy cuts, while the RK5 groove pattern controls chip flow to avoid entanglement and improve evacuation. This combination ensures repeatable performance on lathes and turning centres, improving process stability and reducing secondary operations.

Practical handling and application guidance for workshop use

Selection and use are straightforward: the insert is suitable for roughing and medium feed operations in cast iron where abrasive wear and short chips are typical. The plate thickness code and tolerance class M support consistent clamping and repeatability; users benefit from predictable seating and interchangeability across compatible toolholders. For unfamiliar applications, machining data should start conservatively and be increased until the desired balance of productivity and tool life is achieved. If further machining data or compatibility checks are required, technical advice is available from Metav Werkzeuge; contact info@metav-werkzeuge.com or call +49 2822 7131930 for tailored recommendations.

For high-performance cast iron turning with Walter Tools, contact Metav Werkzeuge for application support on the TNMA160412-RK5 WKK10S insert and to arrange supply or batch recommendations

Technical Data

• Article number: TNMA160412-RK5-WKK10S-WALTER
• Designation: TNMA160412-RK5 WKK10S
• Product type: Turning indexable insert
• Manufacturer: Walter Tools

Core data

• Size: 16 mm
• Thickness code: 04
• Corner radius: 1.2 mm
• Clearance angle: 0° (negative)
• Tolerance class: M

Special features

• Grade / series: Tiger·tec Silver — WKK10S (coated carbide)
• Chipbreaker: RK5
• Plate shape: Triangle 60°
• Material application: Cast iron (ISO group K)
• Execution: A

FAQ

What materials is this insert intended for?
The TNMA160412-RK5 WKK10S insert is intended primarily for cast iron (ISO group K); the WKK10S grade and Tiger·tec Silver coating are optimised for abrasive, short-chip cast materials.

How does the RK5 chipbreaker affect machining?
The RK5 chipbreaker on this triangular insert produces controlled, short chips that improve evacuation and safety during roughing and semi-finishing in cast iron components.

What does a 0° (negative) clearance mean for tool life?
A 0° negative clearance gives a stronger cutting edge and better resistance to edge chipping under heavy loads, contributing to stable tool life in interrupted cuts and tough cast iron conditions.

Is the insert suitable for finishing passes?
The TNMA160412-RK5 WKK10S is optimised for roughing and medium finishing; for fine finishing on cast iron, consider the corner radius and surface requirements when selecting feeds and speeds.

Which chipbreaker and geometry should be chosen for high-volume roughing?
For high-volume roughing in cast iron, the RK5 chipbreaker with triangular 60° geometry and a 1.2 mm corner radius offers a robust balance between material removal and edge security.

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