CNMG250924-RP7 WKP30S Wendeplatten - Walter Tools

Benefit from the combination of Tiger·tec Silver coating, the RP7 chipbreaker and a rhombic 80° geometry to achieve consistent, productive turning in steel and cast iron; order through Metav Werkzeuge or contact our consultants for machining recommendations.

CNMG250924-RP7 WKP30S — turning insert CNMG250924-RP7 WKP30S for steel and cast iron, Tiger·tec Silver (Walter Tools)

The CNMG250924-RP7 WKP30S is a rhombic 80° turning insert designed for stable medium and finishing cuts in steel (P) and cast iron (K), offering a balanced mix of wear resistance and chip control.

• Tiger·tec Silver coating for improved wear resistance
• Rhombic 80° geometry with 0° negative rake
• 2.4 mm corner radius for stable machining
• Optimised for steel (P) and cast iron (K)

Consistent tool life through advanced coating technology

The Tiger·tec Silver series combines a high-performance coated carbide substrate with a multilayer finish to reduce flank and crater wear under typical turning conditions. This grade, WKP30S, is formulated for the thermal and mechanical demands of machining steel and cast iron and delivers a measurable improvement in process reliability. The coating reduces friction at the tool–workpiece interface and, when paired with the RP7 chipbreaker, supports controlled chip formation; the result is extended edge life and fewer unscheduled insert changes during production cycles.

Geometry engineered for repeatable, secure cutting

The rhombic 80° profile and 0° negative rake create a robust cutting edge that reacts predictably under radial loads. The relatively large 2.4 mm corner radius increases edge strength and improves surface finish when light to moderate feed rates are applied, while the RP7 chipbreaker promotes short, manageable chips for continuous turning. For setups where stability and repeatability matter, this geometry reduces vibration and helps maintain dimensional accuracy, especially in repetitive series production.

Productivity benefits and application recommendations

Selected for use on a wide range of steels and cast irons, the insert provides a pragmatic balance between economy and machining performance. The combination of the WKP30S grade and the insert geometry supports higher material removal rates with reliable edge behaviour, so cycle times can be improved without compromising component quality. When specifying tools, consider matching the insert to a suitable toolholder and setting cutting parameters according to the workpiece material group (P or K) listed in ISO 513 to achieve the best result; a conservative start-up speed and progressive feed adjustment will confirm optimal conditions for each application.

Contact Metav Werkzeuge for tailored cutting data and sample availability for Walter Tools turning inserts; email info@metav-werkzeuge.com or call +49 2822 7131930 to request application-specific recommendations

Technical data

• Article number: CNMG250924-RP7-WKP30S-WALTER
• Product label: Drehwendeschneidplatte CNMG250924-RP7-RP7 WKP30S Walter Tools
• Series: Tiger-tec Silver
• Grade: WKP30S
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Tolerance class: M

Facts

• Inscribed circle / size: 25 mm
• Corner radius: 2.4 mm
• Thickness: 09
• Free angle: 0° (negative)
• Chipbreaker: RP7

Special features

• Coating technology: Tiger·tec Silver
• Substrate: coated carbide
• Geometry: Rhombus 80°
• Material suitability: steel (P) and cast iron (K)
• Execution: G

FAQ

What materials is this insert suited for?
The CNMG250924-RP7 WKP30S from Walter Tools is optimised for machining steel (ISO group P) and cast iron (ISO group K), reflecting the intended application of the WKP30S grade.

Which chip shape can be expected with the RP7 chipbreaker?
The RP7 chipbreaker encourages short, segmented chips suitable for continuous turning operations; this improves process safety and reduces the risk of chip entanglement with the tool or workpiece.

Is this insert suitable for heavy roughing cuts?
The rhombic 80° geometry and 2.4 mm corner radius give good edge strength, but CNMG250924-RP7 WKP30S is best applied to medium and finishing operations; for very heavy roughing, a dedicated roughing geometry may be preferable.

How does the Tiger·tec Silver coating affect performance?
The Tiger·tec Silver coating on the WKP30S grade lowers friction and improves resistance to thermal and abrasive wear, which extends usable tool life and supports consistent surface quality over longer tool lives.

Which toolholder types are compatible with this insert designation?
Insert designation CNMG250924-RP7 corresponds to standard toolholders accepting CNMG geometry; ensure correct clamping and seat support according to the toolholder manufacturer’s guidance for secure and repeatable performance.

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

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