CNMG120404-MK5 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the insert’s combination of high wear resistance, reliable chip control and a geometry optimised for cast-iron turning; order the original insert directly via Metav Werkzeuge or consult the team for technical guidance.

Indexable turning insert CNMG120404-MK5 WKK10S for cast iron | Walter Tools

CNMG120404-MK5 WKK10S is a negative-geometry turning insert designed for efficient machining of cast iron components in serial and single-part production.

• Tiger-tec Silver coating boosts wear life
• WKK10S grade tuned for cast iron machining
• MK5 chipbreaker for stable chip control
• Rhombic 80° form with 0.4 mm nose radius

Increased productivity through optimised wear resistance

The CNMG120404-MK5 WKK10S insert delivers predictable performance by combining the Tiger-tec Silver coating with a coated carbide base, providing high wear resistance under the intermittent, abrasive conditions typical of cast-iron machining. The engineered coating reduces flank wear and adhesion, which translates into longer tool life and fewer index changes on the lathe. With a negative cutting geometry and a robust edge preparation, the insert supports consistent surface finish levels while maintaining stable cutting forces, allowing higher metal removal rates without compromising component quality.

Reliable chip formation and machining stability

Equipped with the MK5 chipbreaker and a rhombic 80° shape, this insert fosters controlled chip breaking and evacuation when turning grey and ductile cast irons (ISO group K). The chipbreaker geometry prevents long, stringy chips and reduces the risk of re-cutting, which enhances process security and protects the workpiece and toolholder. The negative 0° clearance and the 0.4 mm nose radius together create a strong cutting edge that withstands interrupted cuts and part variances, making the insert suitable for both finishing and medium-depth turning operations where stable tool contact matters.

Application-focused grade and series benefits

The WKK10S grade, part of the Tiger-tec Silver series, is specifically formulated for abrasive cast-iron applications: it balances hardness and toughness to cope with short, breaking chips and hard inclusions. This targeted grade selection reduces the need for frequent tool changes and supports predictable process windows, which is especially beneficial for batch production and production parts where repeatability is essential. The insert’s specification and ISO designation permit straightforward integration into standard toolholders and programming practices, facilitating quick setup and reproducible results across work shifts.

Contact Metav Werkzeuge to discuss integration of Walter Tools inserts into the production process or to order the CNMG120404-MK5 WKK10S; Metav Werkzeuge can be reached at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical Data

• Article number: CNMG120404-MK5-WKK10S-WALTER
• Designation: CNMG120404-MK5 WKK10S
• Series: Tiger-tec Silver
• Grade: WKK10S
• Manufacturer: Walter Tools

Numbers / Core technical data

• Size: 12
• Thickness code: 04
• Corner radius: 0.4 mm
• Clearance angle: 0° (negative)
• Tolerance class: M

Special features / Versions

• Coating: Tiger-tec Silver
• Chipbreaker: MK5
• Shape: Rhombic 80°
• Material grade: coated carbide
• Application: cast iron (ISO group K)

FAQ

Is this insert suitable for all types of cast iron?
The WKK10S grade is tailored for cast-iron machining (ISO group K) and performs well on grey and many ductile cast irons; selection should consider specific alloy and hardness.

What benefits does the Tiger-tec Silver coating provide?
The Tiger-tec Silver coating on the CNMG120404-MK5 WKK10S reduces abrasive wear and improves edge stability, extending tool life in abrasive cast-iron conditions.

How does the MK5 chipbreaker influence machining?
The MK5 chipbreaker delivers predictable chip control and reduced risk of long chips, enhancing process security during continuous turning operations.

Can the insert handle interrupted cuts and roughing?
With its negative geometry and sturdy 0.4 mm nose radius, the insert offers robust edge strength suitable for intermittent cuts and medium-depth roughing passes.

Which toolholders are compatible with this ISO insert?
The insert follows standard CNMG ISO geometry and interfaces with toolholders designed for CNMG inserts; ensure the holder supports negative inserts and the required clamping method.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trade names are mentioned for explanatory purposes only. There is no connection between our company and the mentioned brands. The offered item is original factory-new merchandise of the manufacturer.