SCMT120408-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of high abrasive wear resistance and optimised chip control for reliable cast iron machining; benefit from the robust square geometry and precise 0.8 mm corner radius for repeatable results. Order the insert directly via Metav Werkzeuge or consult the specialists if further specification is required.

SCMT120408-RK4 WKK10S – Square 90° indexable insert, Tiger·tec Silver, Walter Tools

A Walter Tools SCMT120408-RK4 WKK10S indexable insert engineered for efficient and consistent machining of cast iron in drilling, boring and turning operations.

• Tiger·tec Silver coating for abrasive wear resistance
• Optimised RK4 chipbreaker for short, broken chips
• Square 90° form with 0.8 mm corner radius
• 7° relief angle for secure cutting geometry
• Designed for cast iron machining

Higher throughput through wear-resistant grade

The combination of the Tiger·tec Silver coating and the WKK10S grade gives a measurable improvement in abrasive wear resistance during cast iron operations. As a coated carbide solution developed for ISO group K, this grade copes with the short, brittle chips typical of grey and spheroidal cast irons while extending tool life. The result is fewer insert changes and more stable cycle times, supporting higher productivity in both small-batch and serial production environments.

Reliable chip control and surface consistency

The RK4 chipbreaker is designed to produce short, controllable chips when machining cast iron, reducing the risk of chip entanglement and promoting consistent surface quality. Combined with the square 90° geometry and 0.8 mm corner radius, the tool delivers a dependable cutting edge that supports repetitive, high-accuracy passes. This geometry also helps to maintain dimensional stability across interrupted cuts and variable section conditions, translating into less rework and a steadier process capability.

Robust geometry for secure clamping and repeatable use

The insert’s 7° relief angle and tolerance class M ensure a secure seating and repeatable orientation in standard tool holders. The plate thickness and compact design contribute to stiffness in the cutting zone, which reduces vibration and supports predictable tool behaviour. For workshops consolidating tool inventories, the insert’s form factor and consistency allow integration into existing drilling, boring and turning tool systems without complex adaptations.

Practical application notes for process optimisation

This insert is primarily intended for cast iron applications (ISO K) where abrasive wear and short chips dominate. For best results, pair the insert with moderate cutting speeds suited to grey or nodular cast iron and employ stable clamping to exploit the grade’s wear resistance. The coated carbide construction of the insert emphasises long tool life and stable performance, making it a pragmatic choice when improving uptime and reducing tool-change frequency are priorities.

Contact Metav Werkzeuge today to discuss specification and availability of the Walter Tools SCMT120408-RK4 WKK10S insert for cast iron machining; eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930

Technical Data

• Article number: SCMT120408-RK4-WKK10S-WALTER
• Designation: SCMT120408-RK4 WKK10S
• Manufacturer: Walter Tools
• Product type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte

Facts

• Plate size: 12 mm
• Plate thickness: 4 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Plate form: Square 90°
• Tolerance class: M
• Chipbreaker: RK4

Special features

• Coating/grade: Tiger·tec Silver, grade WKK10S
• Material: coated carbide
• Application: suitable for cast iron (ISO K)
• Series: Tiger·tec Silver

FAQ

Is this insert suitable for grey and nodular cast iron? This insert, the SCMT120408-RK4 WKK10S from Walter Tools, is specifically matched to ISO group K and is suitable for machining both grey and nodular cast iron where abrasive wear and short, breaking chips are expected.

What benefits does the Tiger·tec Silver coating provide? The Tiger·tec Silver coating on the WKK10S grade enhances resistance to abrasive wear and stabilises performance under cast iron cutting conditions, resulting in longer tool life for the insert and fewer interruptions in production.

How does the RK4 chipbreaker affect machining? The RK4 chipbreaker on this indexable insert is engineered to produce short, broken chips when cutting cast iron, improving chip evacuation and reducing the likelihood of chip-related interference in drilling and turning operations.

Can this insert be used in standard turning tool holders? Yes, the square 90° form and the 7° relief angle ensure secure seating and compatibility with common insert clamping systems, enabling straightforward integration into existing turning and boring setups.

What is the effect of the 0.8 mm corner radius? A 0.8 mm corner radius provides a balance between edge strength and surface finish, offering robust cutting edges for interrupted cuts while maintaining acceptable surface quality for many machining tasks.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

Die Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is part of the Sandvik group and is one of the leading manufacturers of precision tools for metalworking. Protected trademarks and trade names are the property of their respective owners and are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The offered item is an original, brand-new product from the manufacturer.