DNMA150408-RK5 WKK10S WKK10S Wendeplatten - Walter Tools

Benefit from robust chip control, Tiger‑tec Silver wear resistance and a stable rhombic geometry that boost productivity in cast iron turning; the DNMA150408‑RK5 WKK10S combines reliable edge strength with predictable performance. Order the DNMA150408‑RK5 WKK10S directly via Metav Werkzeuge or ask our consultants if needed.

DNMA150408-RK5 WKK10S — Turning insert for cast iron, Tiger‑tec Silver — Walter Tools

The DNMA150408‑RK5 WKK10S is a rhombic 55° turning insert engineered for efficient machining of cast iron, featuring a Tiger‑tec Silver coating and an RK5 chipbreaker for improved chip control.

• Tiger‑tec Silver coating for improved wear resistance
• RK5 chipbreaker for controlled chip formation
• Rhombic 55° geometry for versatile turning
• 0.8 mm corner radius for robust edge strength

Optimised wear resistance for abrasive cast iron conditions

The Tiger‑tec Silver coating, paired with the WKK10S carbide grade, is engineered to resist the abrasive wear typical of cast iron applications. This combination extends tool life and helps maintain consistent dimensional accuracy over longer production runs. Coating technology reduces flank wear by improving thermal stability at the cutting edge; as a result, wear resistance and repeatable surface quality are achieved with fewer insert changes, supporting steady process throughput.

Stable geometry that improves cutting reliability

The rhombic 55° insert form and the 0° negative rake produce a stable cutting action suited to a range of turning operations. The 0.8 mm corner radius offers enhanced edge strength for interrupted cuts and heavier engagement, while the plate thickness code 04 contributes to rigidity in the clamping system. Together these geometric features result in improved load distribution across the cutting edge and reduced tendency for sudden edge failure, which benefits overall process reliability.

Effective chip control and production efficiency

The RK5 chipbreaker is tuned for the short, brittle chips typical of cast iron, promoting safe chip flow and preventing entanglement. Controlled chip formation reduces machine downtime for clearing, shortens cycle interruptions and supports higher net productivity. As an indexable insert, the item allows quick rotation to a fresh cutting edge, lowering tool change time and improving overall equipment utilisation in batch and continuous production environments.

Application guidance and material suitability

Designed specifically for cast iron (ISO group K), the insert accommodates the abrasive and often fracturing chip behaviour encountered with these materials. The combination of coating, chipformer and geometry is selected to balance wear resistance with reliable chip breakage. For newcomers, a chipbreaker is a machined relief on the rake face that shapes chips as they form; the RK5 option helps ensure chips break into manageable segments for safe evacuation and consistent surface finish. Handling is performed using standard insert seats compatible with DNMA‑style turning toolholders.

Contact Metav Werkzeuge for tailored application advice on Walter Tools inserts and to request a specification sheet or quotation for the DNMA150408‑RK5 WKK10S.

Technical data

• SKU: DNMA150408-RK5-WKK10S-WALTER
• Product: Turning insert DNMA150408-RK5 WKK10S
• Brand: Walter Tools
• Series: Tiger‑tec Silver
• Designation: DNMA150408-RK5

Facts

• Insert size: 15
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Thickness code: 04
• Tolerance class: M

Special features

• Coating: Tiger‑tec Silver
• Carbide grade: WKK10S
• Chipbreaker: RK5
• Shape: Rhombic 55°
• Material group suitability: K (cast iron)

FAQ

What materials is this insert suitable for? The DNMA150408‑RK5 WKK10S is intended for machining cast iron; the grade and chipbreaker are optimised for abrasive cast materials.

How does the RK5 chipbreaker affect chip control? The RK5 chipformer on this turning insert promotes short, controlled chip segments during cast iron turning, reducing chip-related interruptions.

Is the rhombic 55° geometry versatile for different turning tasks? Yes; the rhombic 55° form provides a balance of accessibility and edge strength, making it suitable for a variety of external turning applications.

What does the 0° negative rake signify in practice? A 0° negative rake means a neutral to slightly reinforced cutting angle that stabilises the cutting edge for tougher or interrupted cuts, improving robustness.

Can this insert be used in standard DNMA toolholders? The DNMA150408‑RK5 WKK10S corresponds to the DNMA family and is compatible with standard toolholders designed for that insert profile.

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

The Walter AG (brand presentation: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik group. Protected trademarks and brand names are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands; the offered item is an original, factory‑new product of the manufacturer.