CNMG120408-RP7 WKP30S Wendeplatten - Walter Tools

Take advantage of the combination of long tool life, reliable chip control and versatile geometry for efficient turning of steel and cast iron; order directly via Metav Werkzeuge or contact the consultants for application advice.

CNMG120408-RP7 WKP30S – Turning insert, Tiger·tec Silver grade by Walter Tools (for steel and cast iron)

A CNMG120408-RP7 WKP30S turning insert designed for robust, high-consistency machining in steel and cast iron applications as part of the Tiger·tec Silver series.

• Tiger·tec Silver coating for robust wear resistance
• WKP30S grade optimised for steel and cast iron
• Rhombic 80° geometry for versatile turning
• 0° negative rake, 0.8 mm corner radius

Increased productivity through durable cutting performance

The coated carbide composition of this insert, realised in the Tiger·tec Silver technology and specified by the WKP30S grade, delivers extended tool life under continuous load. The coating reduces abrasive wear and thermal impact during typical turning operations, which translates into fewer tool changes and longer uninterrupted cycles. Such durability supports predictable process times and contributes to consistent component throughput in batch or series production, making the insert suited to demanding workshop and production environments.

Reliable chip control for stable machining results

Equipped with the RP7 chipbreaker, the insert promotes controlled chip formation when machining both steel and cast iron, in line with ISO 513 group designations P and K. The chip geometry prevents long, tangled swarf and reduces the risk of workpiece or machine damage, increasing operational safety and component quality. The 0° negative rake enhances edge strength for interrupted cuts and heavy engagement, ensuring the cutting edge remains intact under higher mechanical load and improving process reliability.

Geometry that balances accuracy and versatility

The rhombic 80° shape and 0.8 mm corner radius provide a compromise between a sharp cutting point for finer finishes and a robust nose radius for longer life under tougher feeds. This geometry supports a wide range of turning tasks—from finish to semi-roughing—allowing a single insert geometry to be used across multiple stations or setups. The nominal plate size and thickness ensure compatibility with standard CNMG holders, enabling straightforward integration into existing tooling systems while maintaining repeatable results.

Integration and quality assurance in production workflows

With tolerance class M and execution code G, the insert arrives ready for installation in standard toolholders and offers consistent dimensional accuracy. The specification and manufacturing quality from Walter Tools ensure batch-to-batch uniformity, aiding toolpath stability and process documentation. Where material mix includes both steels and cast irons, the insert’s balanced properties reduce the need for frequent grade changes, simplifying inventory and supporting efficient shop-floor logistics.

For high-productivity turning with Walter Tools’ Tiger·tec Silver grade, contact Metav Werkzeuge for tailored advice and prompt supply at info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: CNMG120408-RP7-WKP30S-WALTER
• Product type: Drehwendeschneidplatte (turning insert)
• ISO designation: CNMG120408-RP7 WKP30S
• Grade: WKP30S
• Series: Tiger-tec Silver
• Manufacturer: Walter Tools

Facts

• Plate size: 12
• Plate thickness: 04
• Corner radius: 0.8 mm
• Clearance / rake: 0° (negative)
• Geometry: Rhombus 80°
• Chipbreaker: RP7
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Material suitability: Steel (P)
• Material suitability: Cast iron (K)
• Execution: G
• Design: CNMG format, compatible with standard CNMG toolholders

FAQ

What materials is this insert suitable for?
The CNMG120408-RP7 WKP30S insert is designed for machining steel (ISO group P) and cast iron (ISO group K) thanks to the WKP30S grade and Tiger·tec Silver coating.

How does the RP7 chipbreaker affect operation?
The RP7 chipbreaker on the CNMG120408-RP7 WKP30S promotes controlled chip formation, improving swarf management and machine safety during turning of steel and cast iron.

Is the geometry suitable for both finishing and roughing?
Yes. The rhombic 80° shape combined with a 0.8 mm corner radius allows the insert to perform in both semi-roughing and finishing roles while maintaining surface quality and edge robustness.

Can this insert handle interrupted cuts or heavy engagement?
The 0° negative rake increases edge strength, making the CNMG120408-RP7 WKP30S well suited to interrupted cuts and scenarios with higher mechanical loads.

Which brand manufactures this insert and what can be expected in terms of quality?
This insert is from Walter Tools; their Tiger·tec Silver technology emphasises process security and consistent tool life, delivering reliable performance for industrial turning applications.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.