DCMT11T312-MK4 WKK20S Wendeplatten - Walter Tools

High-performance machining of abrasive cast-iron components is supported by the combination of a wear-resistant coated grade and a proven chipbreaker geometry; the DCMT11T312-MK4 WKK20S delivers extended tool life and consistent chip control for reliable production. Secure supply or technical advice through Metav Werkzeuge to integrate this insert into stable turning processes.

DCMT11T312-MK4 WKK20S indexable turning insert — Tiger·tec Silver for cast iron by Walter Tools

The DCMT11T312-MK4 WKK20S is an indexable turning insert designed for efficient machining of cast iron, featuring a Tiger·tec Silver coated carbide grade and an MK4 chipbreaker.

Tiger·tec Silver coated carbide
Optimised for cast iron machining
MK4 chipbreaker for stable chip control
Rhombic 55° shape with 1.2 mm nose radius

Boosted productivity for abrasive cast-iron work

The Tiger·tec Silver technology combined with the WKK20S grade provides a coated carbide solution tuned for the abrasive nature of cast iron. This results in stable chip formation and reduced crater wear, which directly improves tool life and process uptime. The insert’s construction supports predictable flank wear and less frequent tool changes, delivering measurable gains in cycle-time efficiency and lower unit manufacturing costs.

Consistent chip control and repeatable surface finish

Equipped with the MK4 chipbreaker, the geometry promotes short, manageable chips when turning cast-iron materials, helping to avoid built-up edge and machine downtime. The rhombic 55° form and 1.2 mm nose radius work with the 7° clearance to maintain cutting stability and reproducible contact conditions at the cutting edge. The result is reliable surface finish and dimensional consistency across runs, particularly beneficial for batch production and tight tolerance turning.

Practical integration for production tooling systems

The compact DCMT11T312-MK4 insert is provided in the common 11 size with T3 thickness, enabling interchangeability with standard toolholders for turning operations. Its combination of a robust coated grade and tailored chip control makes it suitable for finishing and medium-depth turning of cast-iron components. The insert supports process standardisation and simplifies inventory management by offering a universal option for a range of grey and nodular cast-iron applications.

For reliable cast-iron turning performance, request supply or technical clarification for the Walter Tools DCMT11T312-MK4 WKK20S from Metav Werkzeuge by emailing info@metav-werkzeuge.com or calling +49 2822 7131930

Product details

• Article number: DCMT11T312-MK4-WKK20S-WALTER
• Product name: Drehwendeschneidplatte DCMT11T312-MK4 WKK20S
• Manufacturer: Walter Tools
• Product type: Indexable turning insert
• Series / coating technology: Tiger·tec Silver
• Grade: WKK20S

Core specifications

• Clearance angle: 7°
• Nose radius: 1.2 mm
• Insert shape: Rhombic 55°
• Insert size: 11
• Thickness: T3
• Tolerance class: M
• Chipbreaker: MK4

Applications & features

• Material group: K (cast iron)
• Coating: Tiger·tec Silver (coated carbide)
• Optimised for abrasive cast-iron machining
• Stable chip formation and good tool life
• Suitable for finishing and general turning of cast iron

FAQ

What materials is this insert intended for?
The DCMT11T312-MK4 WKK20S is specified for machining cast iron (material group K) and its graded coating and chipbreaker are tuned to handle abrasive cast-iron characteristics.

How does the MK4 chipbreaker affect performance?
The MK4 chipbreaker on this insert promotes short, controllable chips and consistent cutting conditions, improving process reliability and surface quality during turning of cast-iron parts.

Which feature ensures good surface finish on turned components?
A combination of the rhombic 55° shape, 1.2 mm nose radius and 7° clearance contributes to stable cutting and a repeatable surface finish across production runs.

Is this insert compatible with standard toolholders?
Yes; the insert is supplied in the common 11 size and T3 thickness, allowing use with standard turning toolholders designed for DCMT-type inserts.

Can this grade withstand continuous production runs?
The WKK20S grade with Tiger·tec Silver coating is engineered for extended tool life and stable wear behaviour, making it suitable for continuous or repetitive cast-iron machining operations.

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

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