CCMT120412-RK4 WKK10S WKK10S Wendeplatten - Walter Tools

The combination of targeted chip control, abrasion‑resistant coating and stable cutting geometry delivers reliable productivity for cast‑iron turning and boring; order the insert directly via Metav Werkzeuge or consult the technical team for application advice.

CCMT120412‑RK4 WKK10S — Turning/boring indexable insert, Tiger·tec Silver, Walter Tools

The CCMT120412‑RK4 WKK10S is a rhombic 80° indexable insert designed for machining cast iron, offering enhanced wear resistance and controlled chip formation for consistent production results

• Tiger·tec Silver coating for abrasive wear resistance
• Optimised chip former RK4 for cast iron
• Rhombic 80° insert with 7° relief angle
• 1.2 mm nose radius for stable cutting performance

Durable coating and proven wear resistance for cast‑iron work

The Tiger·tec Silver coating combines a hard, wear‑resistant surface with an engineered substrate to resist abrasive wear typical of grey and nodular cast iron. This coating technology ensures longer edge life under intermittent and interrupted cuts, reducing the frequency of index changes and supporting steadier tool costs per part. The designated chipformer, RK4, is engineered to promote short, controllable chips when machining cast‑iron grades, which leads to fewer interruptions in automated cells and improved process stability.

Stable geometry for repeatable surface quality

A rhombic 80° geometry with a 7° relief angle and a 1.2 mm nose radius delivers a balanced combination of strength and finishing capability. The robust geometry supports higher radial engagement and light finishing passes with reduced vibration, producing consistent surface finish and dimensional repeatability. Thanks to the insert thickness and form, the cutting edge maintains mechanical stability during plunge and boring operations, helping to keep cycle times predictable across batch production.

Integration and productivity advantages in the machining process

As an indexable insert for conventional holders, this grade simplifies tool management and inventory: one insert type covers common cast‑iron operations, reducing setup complexity. The coated cemented‑carbide substrate and optimised chip control translate into fewer tool changes and lower machine downtime, which improves overall throughput. For production environments seeking dependable performance, the insert supports economical machining by extending service intervals and enabling consistent output across shifts.

Application focus: efficient machining of cast iron

The cutting grade is tailored for ISO group K materials, making it particularly suitable for cast‑iron components where short, brittle chips and abrasive wear are prevalent. Typical uses include facing, profiling and semi‑finishing operations on grey and nodular cast iron where stable chip flow and edge security are priorities. The insert’s chipformer and coating combination help mitigate the effects of abrasive inclusions and thermal loads often encountered in foundry‑derived workpieces.

For machining tasks that demand reliable performance in cast‑iron applications, contact Metav Werkzeuge to discuss the CCMT120412‑RK4 WKK10S insert, request cutting data or arrange a tailored recommendation from the technical advisers at Metav Werkzeuge.

Technical Data

• Article number: CCMT120412‑RK4‑WKK10S‑WALTER
• Designation: CCMT120412‑RK4 WKK10S
• Brand: Walter Tools
• Series: Tiger·tec Silver

Facts

• Insert shape: Rhombus 80°
• Relief angle: 7°
• Nose radius: 1.2 mm
• Insert size: 12
• Thickness designation: 04
• Chipformer: RK4
• Tolerance class: M
• Execution: T

Special features

• Coating: Tiger·tec Silver
• Substrate: coated cemented carbide
• Application group: cast iron (ISO K)
• Optimised for short, brittle chips
• Stable cutting edge for repeatability
• Suitable for turning, boring and semi‑finishing

FAQ

What materials is this insert designed for?
The CCMT120412‑RK4 WKK10S insert is optimised for ISO group K — primarily cast iron — with its coating and RK4 chipformer tailored to abrasive wear and short, breaking chips.

Can this insert be used for finishing passes?
Yes, the combination of a 1.2 mm nose radius and the rhombic 80° geometry supports light finishing and semi‑finishing operations while maintaining surface quality.

How does the RK4 chipformer benefit production?
The RK4 chipformer promotes controlled short chips in cast‑iron machining, improving chip evacuation and reducing the risk of entanglement in automated setups when using this Walter Tools insert.

Is this insert compatible with standard CCMT toolholders?
The insert follows the CCMT form factor and is compatible with holders and toolblocks designed for CCMT‑style rhombic 80° inserts; verify holder specifications for thickness and clamping style.

What are the main advantages of the Tiger·tec Silver series?
Tiger·tec Silver offers enhanced abrasion resistance and consistent edge life under interrupted cuts, making it suitable for demanding cast‑iron applications where wear and chip control are critical.

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

The Walter AG (brand: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik group. Protected trademarks and product names are the property of their respective owners. Mention of brand names is for explanation only and does not imply any affiliation.