DCMT11T304-MK4 WKK20S Wendeplatten - Walter Tools

High wear resistance, reliable chip control and a compact rhombic geometry ensure consistent productivity and predictable tool life; order the insert directly via Metav Werkzeuge or consult our specialists for machining support.

DCMT11T304-MK4 WKK20S turning insert — Tiger‑tec Silver, for cast iron | Walter Tools

The DCMT11T304-MK4 WKK20S is a rhombic 55° turning insert designed for productive and reliable machining of cast iron components.

• Tiger‑tec Silver coated grade WKK20S
• Optimised for cast iron machining
• MK4 chipbreaker for controlled chips
• 0.4 mm corner radius for stable edges

Increased productivity for abrasive cast iron

The coated carbide grade WKK20S from the Tiger‑tec Silver family is formulated to resist abrasive wear typical of cast iron. The combination of a robust coating and a geometry tailored to cast materials delivers consistent tool life and fewer unplanned tool changes, which improves machine utilisation. The rhombic 55° insert shape and the MK4 chipbreaker cooperate to produce short, predictable chips, reducing stoppages for chip clearing and supporting higher uninterrupted cutting periods.

Stable cutting performance and surface quality

A 0.4 mm corner radius provides a compromise between edge strength and surface finish: it stabilises the cutting edge under intermittent engagement while helping to maintain a steady component surface. The 7° clearance angle reduces flank rubbing, lowering heat build‑up and helping to preserve the edge for longer. These geometrical choices yield reliable dimensional results and repeatable surface quality in serial production without sacrificing tool life.

Practical handling and process guidance

The insert’s T3 thickness and size 11 format suit standard toolholders and allow straightforward tool set‑up in turning centres. The MK4 chipbreaker is designed to control the typically brittle, breaking chips of cast iron, simplifying evacuation and minimising manual intervention. If process parameters need adaptation for a specific grade of cast iron, Metav Werkzeuge’s technical advisors can provide cutting‑edge recommendations and setup tips to integrate the insert effectively into existing turning cycles.

For secure and efficient cast iron turning with Walter Tools’ Tiger‑tec Silver grade, contact Metav Werkzeuge for delivery details and application advice at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: DCMT11T304-MK4-WKK20S-WALTER
• Designation: DCMT11T304-MK4 WKK20S
• Manufacturer: Walter Tools

Facts

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Insert shape: Rhombus 55°
• Insert size: 11
• Thickness: T3
• Tolerance class: M

Special features

• Grade: WKK20S (Tiger‑tec Silver)
• Chipbreaker: MK4
• Coated carbide for cast iron
• Series: Tiger‑tec Silver

FAQ

What materials is this insert intended for?
The DCMT11T304-MK4 WKK20S turning insert is intended and optimised for machining cast iron materials.

How does the chipbreaker improve production?
The MK4 chipbreaker on the insert shapes and controls the typically short, brittle chips produced when machining cast iron, improving evacuation and reducing interruption in the machining process.

Which geometry features support surface quality?
The rhombic 55° shape together with a 0.4 mm corner radius and a 7° clearance angle help to balance edge strength and finish quality during turning operations.

Is the grade suitable for continuous production runs?
Yes, the WKK20S grade in the Tiger‑tec Silver series is formulated for wear resistance and stable cutting behaviour, supporting predictable performance in serial production.

Can the insert be used with standard toolholders?
The insert’s T3 thickness and size 11 format are compatible with common turning toolholders; verify holder seat compatibility before assembly.

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

The Walter AG (brand presentation: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Swedish Sandvik Group. Protected trademarks and trade names remain the property of their respective owners and are used here for explanation only. There is no affiliation between our company and the named brands. The offered item is an original, factory‑new product of the manufacturer.