DNMG110404-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of precise chip control, extended tool life from Tiger·tec Silver coating and the robust MK5 chipbreaker for consistent productivity in cast iron turning; order the insert directly via Metav Werkzeuge or contact the consultants for application-specific cutting data.

DNMG110404-MK5 WKK20S indexable turning insert by Walter Tools – Tiger·tec Silver, for cast iron

The DNMG110404-MK5 WKK20S is an indexable turning insert engineered for efficient and repeatable machining of cast iron components, combining a Tiger·tec Silver coating with an MK5 chipbreaker for stable chip formation.

• Tiger·tec Silver coating for longer life
• Optimised for cast iron machining
• Rhombic 55° geometry for versatile turning
• Corner radius 0.4 mm for fine surface finish

Consistent chip control and process stability for cast iron

The DNMG110404-MK5 WKK20S insert delivers stable chip formation through its dedicated MK5 chipbreaker, which is optimised for the short, brittle chips typical of cast iron. This results in fewer interruptions, reduced risk of built-up edge and improved surface quality on the workpiece. The combination of chipformer and geometry supports higher material removal rates while maintaining machining reliability, making the insert suitable for serial production and demanding single-part work.

Durable coating technology that reduces tooling costs

Equipped with Tiger·tec Silver technology, the grade WKK20S offers a balanced performance between wear resistance and toughness for abrasive cast iron grades. The advanced coating reduces flank wear and extends life, translating into longer tool cycles and fewer index changes. For production planners, this means predictable replacement intervals and a lower overall cost per component when compared with uncoated or older coating generations.

Geometry designed for versatility and surface quality

The rhombic 55° shape and 0.4 mm corner radius provide a versatile cutting edge suitable for a range of turning tasks, from light finishing to medium roughing. The 0° negative rake helps maintain edge strength when cutting interrupted or abrasive cast iron surfaces, reducing the chance of chipping under shock loads. Operators benefit from a consistent surface finish and reduced rework requirements due to the insert’s robust edge integrity.

Practical benefits for workshop integration and planning

With a clearly defined ISO designation and tolerance class M, the insert integrates smoothly into standard toolholders and production schedules. The serial character of the Tiger·tec Silver family means predictable behaviour across batches, supporting process standardisation and easier tool management. For engineering teams, the insert’s specification enables straightforward selection for cast iron applications and quick comparison with alternative grades when optimising cycle times.

Contact Metav Werkzeuge for tailored cutting data, availability and application advice on Walter Tools DNMG110404-MK5 WKK20S inserts

Technical data

• Article number: DNMG110404-MK5-WKK20S-WALTER
• Label: Drehwendeschneidplatte DNMG110404-MK5 WKK20S Walter Tools
• Product type: Drehwendeschneidplatte (indexable turning insert)
• ISO designation: DNMG110404-MK5 WKK20S
• Manufacturer: Walter Tools

Facts

• Plate form: Rhombus 55°
• Plate size: 11
• Plate thickness: 04
• Corner radius: 0.4 mm
• Relief angle: 0° (negative)

Special features

• Series: Tiger·tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: MK5
• Suitable for: cast iron
• Version: G
• Tolerance class: M

FAQ

What materials is this insert suitable for?
The DNMG110404-MK5 WKK20S is specified for machining cast iron and its grade and chipbreaker are optimised for abrasive, short-chip behaviour found in these materials.

How does the Tiger·tec Silver coating benefit production?
Tiger·tec Silver on the WKK20S grade increases wear resistance and edge life, resulting in longer tool cycles and more predictable replacement intervals for Walter Tools turning inserts.

Which chipbreaker is fitted and what is its advantage?
This insert uses the MK5 chipbreaker, designed to generate compact, controlled chips in cast iron and reduce the likelihood of chip-related interruptions.

Is the geometry suitable for finishing work?
The rhombic 55° form together with the 0.4 mm corner radius supports fine surface finishes while maintaining sufficient edge strength for moderate cutting conditions.

Can this insert be used in standard toolholders?
Yes; the ISO designation DNMG110404-MK5 WKK20S and tolerance class M allow compatibility with conventional indexable turning toolholders designed for DNMG inserts.

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

Walter AG (brand appearance: Walter Tools) is a globally recognised manufacturer of precision cutting tools. The Walter Tools brand represents high process security, precise machining and reliable tool life. Protected trademarks and trade names are the property of their respective owners. Brand names are used for identification and explanatory purposes only. The offered article is original, factory-new merchandise of the manufacturer.