DNMG150608-MW5 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of robust edge strength, reliable chip control and the Tiger·tec Silver coating for consistent performance in cast iron turning; order the insert via Metav Werkzeuge or consult our specialists for process-adapted advice.

Turning insert DNMG150608-MW5 WKK20S — Rhombic 55°, Tiger·tec Silver (Walter Tools)

The DNMG150608-MW5 WKK20S is a negative-rake, rhombic indexable turning insert optimised for efficient machining of cast iron components.

• Tiger·tec Silver coating for high wear resistance
• Optimised MW5 chipbreaker for stable chips
• Designed for cast iron (K) machining
• Rhombic 55° geometry, 0.8 mm corner radius

High process reliability through coating and grade

The combination of the Tiger·tec Silver series and the WKK20S grade delivers a balance of wear resistance and toughness tailored to abrasive cast iron applications. The deposited coating reduces flank wear and maintains a sharper cutting edge for longer, which translates into fewer tool changes and steadier part quality. In practical terms, this means improved process stability during longer production runs and reduced interruptions caused by premature wear. The negative relief angle supports interrupted cuts and strengthens the cutting edge, making it suitable for demanding workpieces where edge security is essential.

Consistent chip control and geometric advantages

Equipped with an MW5 chipbreaker and a rhombic 55° plate form, the insert produces predictable, manageable chips when cutting Gusseisen. The chipformer geometry is designed to break and evacuate chips efficiently, lowering the risk of re-cutting and improving surface finish. The 0.8 mm corner radius balances edge strength with achievable surface quality; a larger radius increases stability, while the rhombic form provides good accessibility in shoulder and profile turning. These design choices reduce cycle-time variability and help maintain dimensional accuracy across batches.

Practical benefits for shop-floor integration

The insert’s designation corresponds to standard toolholder systems, enabling straightforward tool changes and minimal setup time. With a plate thickness code of 06 and an insert size reference of 15, holders and tool posts commonly used in turning centres can be fitted without special adaptations. The tolerance class M ensures repeatable seating and stable clamping, which supports reliable tool life forecasting and simpler inventory management. For workshops aiming to improve throughput while keeping maintenance predictable, the combination of geometry, chip control and coating technology supports measurable efficiency gains.

Application guidance and safety considerations

This grade is specifically formulated for cast iron (designation K); the cutting data should be selected to suit the casting type and machining strategy. Using the negative relief and robust chipbreaker, higher feeds can be considered for stable setups to accelerate material removal, while finishing passes benefit from moderate feeds and cutting speeds that respect the coating’s recommended range. When switching to this insert from a different grade, monitor initial runs to establish optimal feeds and speeds and verify surface finish and dimensional stability.

Contact Metav Werkzeuge for tailored recommendations on toolholders, cutting data and stock availability — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical data

• Article number: DNMG150608-MW5-WKK20S-WALTER
• WPL designation: DNMG150608-MW5 WKK20S
• Series: Tiger·tec Silver
• Grade: WKK20S
• Manufacturer: Walter Tools

Facts

• Insert size: 15
• Thickness: 06
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Shape angle: 55°

Special features

• Chipbreaker: MW5
• Coating: Tiger·tec Silver
• Material group: Cast iron (K)
• Tolerance class: M
• Plate form: Rhombus 55°

FAQ

Is this insert suitable for machining grey and nodular cast iron?
The DNMG150608-MW5 WKK20S from Walter Tools is formulated for Gusseisen (cast iron) applications; the Tiger·tec Silver coating and MW5 chipbreaker support both grey and nodular cast iron under appropriate cutting conditions.

Which chipbreaker action can be expected with the MW5 geometry?
The MW5 chipbreaker on this indexable insert promotes short, controlled chips during turning of cast iron, improving evacuation and reducing the likelihood of entanglement at typical feeds used for roughing and semi-finishing.

Can this insert be used in interrupted cuts or roughing operations?
Yes, the 0° negative relief and robust corner radius give the insert enhanced edge strength, making it suitable for interrupted cuts and heavier engagement when matched with stable toolholding.

What identifiers should be used when ordering replacements or spare inserts?
Order using the article number DNMG150608-MW5-WKK20S-WALTER or the WPL designation DNMG150608-MW5 WKK20S to ensure the correct Tiger·tec Silver grade and chipbreaker configuration are supplied.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the brands listed. The offered item is an original, factory-new product of the manufacturer.