CCMT120404-MK4 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high abrasion resistance, targeted chip control and precise geometry for consistent performance in cast-iron turning operations; order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

CCMT120404-MK4 WKK10S indexable insert — Tiger·tec Silver for cast iron, Walter Tools

CCMT120404-MK4 WKK10S is an indexable insert designed for boring and turning operations in cast iron, offering robust wear resistance and stable chip formation for productive machining.

• Tiger·tec Silver coating for enhanced wear resistance
• Optimised MK4 chipbreaker for cast-iron chips
• Rhombic 80° form for versatile insert positioning
• 7° clearance angle and 0.4 mm corner radius

High wear resistance for abrasive cast-iron work

The insert’s Tiger·tec Silver coating combined with the WKK10S grade provides elevated resistance to abrasive wear typical of grey and nodular cast irons. This translates into longer tool life and fewer indexings, which supports predictable production planning and reduced downtime. The coated cemented carbide substrate is formulated to withstand the short, brittle chips produced by many cast-iron alloys while maintaining cutting-edge stability. As a result, operators achieve consistent dimensional control and improved process reliability in repetitive turning and boring tasks.

Consistent chip control and reliable cutting performance

Equipped with the MK4 chipbreaker geometry and a 0.4 mm corner radius, the insert guides chips away from the cutting zone for secure evacuation and lower risk of re-cutting. The rhombic 80° shape allows multiple cutting-edge orientations, increasing utilisation per index and offering flexible approach angles for varied cutting strategies. Together, these design choices enable efficient heat distribution, reduced cutting forces and higher material removal rates when machining cast iron, making the insert suitable for both finishing and moderately aggressive roughing passes.

Precision geometry for repeatable production outcomes

The nominal designation CCMT120404-MK4 WKK10S reflects measured dimensions and a 7° clearance angle that support repeatable insert seating and predictable tool engagement. Tolerance class M indicates a consistent manufacturing quality that simplifies tool setup and reproducibility across batches. For workshop planners and production engineers, this means less time spent on trial cuts and faster ramp-up to nominal cycle times. Maintenance intervals can be extended through the insert’s stable cutting edge performance, supporting leaner inventory management and improved overall equipment effectiveness.

Contact Metav Werkzeuge for tailored machining advice or to request a quote for the CCMT120404-MK4 WKK10S insert by Walter Tools; our application experts are available to recommend optimal cutting data and clamping solutions

Technical data

• Article number: CCMT120404-MK4-WKK10S-WALTER
• Manufacturer: Walter Tools

Facts

• Insert form: Rhombus 80°
• Size: 12 (nominal)
• Thickness: 04
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Tolerance class: M

Special features

• Grade: WKK10S
• Coating/series: Tiger·tec Silver
• Chipbreaker: MK4
• Substrate type: coated cemented carbide
• Primary application: cast iron

FAQ

What materials is this insert intended for?
The CCMT120404-MK4 WKK10S insert is formulated primarily for cast iron machining applications and is optimised for the abrasive wear and chip characteristics of these materials.

Can the insert be used for both finishing and roughing?
Yes, the MK4 chipbreaker and 0.4 mm corner radius make the insert suitable for light to moderate roughing as well as finishing passes in cast-iron components.

How does the Tiger·tec Silver coating benefit production?
Tiger·tec Silver on the WKK10S grade enhances abrasion resistance and edge life under typical cast-iron cutting conditions, delivering more consistent tool life and fewer interruptions for insert indexing.

Is this insert compatible with standard CCMT toolholders?
The geometry and dimensions follow the CCMT specification, so the insert fits holders designed for CCMT120404-style inserts provided correct clamping and seat conditions are observed.

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

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