SCMT120412-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

High-performance machining of cast iron is supported by the combination of the WKK10S grade and the Tiger·tec Silver coating, delivering stable chip formation and extended tool life; the RK4 chipbreaker ensures dependable chip control and consistent surface quality. Order the insert directly via Metav Werkzeuge or consult our specialists for application-specific advice.

SCMT120412-RK4 WKK10S indexable insert — turning and boring insert by Walter Tools, Tiger·tec Silver, for cast iron

The SCMT120412-RK4 WKK10S is a square 90° indexable turning and boring insert designed for productive machining of cast iron, combining a robust coated-carbide grade with a chipbreaker tuned to short, brittle chips.

• Tiger·tec Silver coating for long tool life
• WKK10S grade optimised for cast iron
• RK4 chipbreaker for reliable chip control
• Square 90° form with 1.2 mm corner radius

Increased productivity through coating and grade selection

The combination of Tiger·tec Silver coating and the WKK10S grade provides a balance of wear resistance and toughness specifically targeted at abrasive cast-iron applications. The coated carbide substrate resists flank and crater wear, so machining cycles run longer between index changes, which reduces process interruptions and increases throughput. For production environments where repeatability matters, this composition supports a stable machining window and predictable tool life.

Predictable chip control and surface integrity

The RK4 chipbreaker is engineered to manage the short, often brittle chips typical of cast iron. Together with the 90° square geometry and 1.2 mm corner radius, the insert promotes consistent chip shaping and evacuation, reducing the risk of chip re-cutting and vibration. The 7° clearance contributes to a secure cutting edge engagement and helps maintain surface finish, making this insert suitable for operations requiring reliable dimensional accuracy and good workpiece appearance.

Process reliability and application guidance

This insert is intended for standard turning and light boring operations in cast-iron materials; the geometry and chip control provide stable chip formation and low edge fracture risk under appropriate cutting parameters. In practice, setting cutting speeds and feeds to match the workpiece grade and machine rigidity will maximise tool life and maintain consistent results. For integrators and production engineers, the insert supports a cost-effective approach to series machining where consistency and reduced secondary operations are priorities.

For application support, grade selection or to specify Walter Tools Tiger·tec Silver inserts for cast-iron production runs, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: SCMT120412-RK4-WKK10S-WALTER
• Designation: SCMT120412-RK4 WKK10S
• Series: Tiger·tec Silver
• Grade: WKK10S
• Tolerance class: M

Facts

• Plate size: 12 mm
• Thickness code: 04
• Clearance angle: 7°
• Corner radius: 1.2 mm

Special features

• RK4 chipbreaker
• Square 90° plate form
• Coated carbide grade for cast iron
• Optimised for stable chip formation in brittle materials

FAQ

What materials is this insert suited for?
The SCMT120412-RK4 WKK10S indexable insert from Walter Tools is optimised for cast iron (ISO group K) and is designed to handle the abrasive wear and short-chip behaviour typical of those materials.

What benefits does the Tiger·tec Silver series provide?
The Tiger·tec Silver coating on the Walter Tools insert improves wear resistance and thermal stability, which contributes to longer tool life and more consistent performance in series production.

How does the RK4 chipbreaker affect machining?
The RK4 chipbreaker on this turning insert promotes reliable chip control, producing short, controlled chips that reduce re-cutting and help maintain surface finish during turning and boring operations.

Which insert geometry should be expected and what does it mean for setup?
The insert features a 90° square form with a 1.2 mm corner radius and a 7° clearance; this geometry allows secure clamping, good edge strength and smooth engagement—gear the setup to machine rigidity and select cutting parameters appropriate for cast iron.

Walter Tools is a brand of Walter AG. Walter AG (brand: Walter Tools); Derendinger Straße 53, 72072 Tübingen, Germany.
Protected trademarks and product names are the property of their respective owners. Brand names and registered trademarks are used solely for explanation and comparison. There is no affiliation between our company and the mentioned brands. The offered article is an original, factory-new product of the manufacturer.