DNMG150612-RP5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKK20S grade for consistent tool life and efficient cast iron machining; order directly via Metav Werkzeuge or consult the technical team for application support.

DNMG150612-RP5 WKK20S indexable turning insert, Rhombus 55° / 1.2 mm corner radius — Walter Tools

The DNMG150612-RP5 WKK20S is a coated carbide indexable turning insert engineered for productive turning of cast iron, combining a robust chipbreaker with a stable cutting edge for general turning operations.

• Tiger·tec Silver coating
• Optimised for cast iron machining
• Rhombus 55° insert form
• 1.2 mm corner radius

Delivering reliable productivity with advanced coating technology

The Tiger·tec Silver coating and the WKK20S grade provide a balance between wear resistance and toughness, which translates into longer tool life and fewer indexings. This coated carbide formulation is tuned for the abrasive nature and short, breaking chips typical of cast iron; as a result, the machining process benefits from consistent cutting performance and reduced downtime. The concrete advantage is higher process stability in serial production, with predictable tool-change intervals and a reliable surface finish on workpieces.

Clear advantages when machining cast iron

Designed specifically for grey and nodular cast iron, the insert’s RP5 chipbreaker promotes controlled chip formation and evacuation, reducing the risk of built-up edge and erratic chip flow. The negative rake (0°) geometry contributes to stronger cutting-edge support under interrupted cuts, making the solution particularly suitable for roughing and medium turning operations. The technical setup therefore yields a favourable cost-to-performance ratio through fewer tool failures and improved cycle-time consistency.

Geometry that aids handling and application flexibility

The Rhombus 55° form and 1.2 mm corner radius deliver a versatile cutting edge for a range of turning profiles while maintaining strength at the corner. The compact size specification supports installation in common DNMG toolholders, allowing straightforward retrofitting into existing tool systems. The combination of form, radius and chipbreaker provides predictable tool behaviour, simplifying process planning and reducing the need for frequent parameter adjustments during batch production.

Discuss the Walter Tools DNMG150612-RP5 WKK20S Tiger·tec Silver indexable insert with Metav Werkzeuge to optimise cast iron turning operations and receive tailored application advice

Technical data

• Article number: DNMG150612-RP5-WKK20S-WALTER
• Label: Drehwendeschneidplatte DNMG150612-RP5 WKK20S Walter Tools
• Type: indexable turning insert
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver
• Grade: WKK20S

Facts

• Insert size: 15
• Corner radius: 1.2 mm
• Thickness: 06
• Free rake angle: 0° (negative)
• Insert form: Rhombus 55°
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Chipbreaker: RP5
• Suitable material group: cast iron
• Execution: G
• Designation: DNMG150612-RP5 WKK20S

FAQ

Which materials is this insert intended for?
The DNMG150612-RP5 WKK20S from Walter Tools is designed for machining cast iron, with the coating and chipbreaker optimised for abrasive, short-chipping cast materials.

How does the RP5 chipbreaker influence chip control?
The RP5 chipbreaker on the WKK20S grade promotes short, manageable chips during cast iron turning, reducing entanglement and improving surface integrity.

Is the insert suitable for interrupted cuts?
Yes; the 0° negative rake and robust geometry make this insert appropriate for interrupted and heavy engagement turning in cast iron applications.

What are the geometric specifications to consider when selecting a toolholder?
Key dimensions include the Rhombus 55° form, size 15, thickness 06 and a 1.2 mm corner radius; the insert fits standard DNMG-compatible toolholders.

Can this grade be used for finishing passes?
While optimised for general and tougher turning operations in cast iron, the grade’s balance of wear resistance and toughness can deliver acceptable finishing results depending on cutting parameters and machine stability.

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