CNMG190612-RP7 WKP30S WKP30S Wendeplatten - Walter Tools

Take advantage of the high wear resistance of the Tiger·tec Silver grade together with a robust RP7 chipbreaker and rhombus 80° geometry for stable, productive turning. Order supply or request application advice directly from Metav Werkzeuge if assistance is required.

CNMG190612-RP7 WKP30S indexable turning insert — 0° negative rake, 1.2 mm corner radius (Walter Tools) for steel and cast iron

The CNMG190612-RP7 WKP30S is an indexable turning insert engineered for demanding machining of steel and cast iron, offering a combination of a coated carbide grade and a geometry geared towards consistent chip control and long tool life.

Tiger·tec Silver coating for enhanced wear resistance
WKP30S grade optimised for steel and cast iron
0° negative rake, rhombus 80° geometry
RP7 chipbreaker and 1.2 mm corner radius

Durable grade for extended tool life and predictable output

The Tiger·tec Silver chemistry and the WKP30S grade deliver a coated carbide substrate that increases resistance to abrasive wear and thermal loading when machining ISO group P (steel) and K (cast iron). This results in fewer unscheduled tool changes and a more predictable tool-life cycle, which supports continuous production runs and reduces downtime. The material-adapted grade ensures stable chip formation under typical steel heat-generation conditions and the often-brittle chips encountered with cast iron, translating into improved process reliability and consistent component quality.

Geometry and chip control that improve surface finish and edge security

The insert’s rhombus 80° profile combined with a 0° negative rake strengthens the cutting edge for interrupted cuts and heavy roughing, while the RP7 chipbreaker is tailored to form short, controllable chips for both steel and cast iron. The 1.2 mm corner radius supports a robust edge, reducing the risk of chipping on tougher operations and helping to maintain surface integrity. In practice, this geometry means fewer reworks and a more consistent finish on turned parts, especially when working with variable section thicknesses or interrupted surfaces.

Practical workshop benefits that enhance productivity

With a nominal size of 19 mm and thickness designation 06, the insert fits standard toolholder systems sized for CNMG geometry, simplifying tool inventory and setup. The combination of grade, chipbreaker and geometry improves process security and makes the insert a solid choice for both reproducible finishing and productive roughing operations. Compliance with the ISO-oriented designation supports straightforward material selection for operators and reduces the time spent on trial-and-error, allowing quicker ramp-up on new jobs and better utilisation of machine time.

For tailored application advice or to secure an immediate delivery of Walter Tools turning inserts, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for expert support and fast supply coordination.

Technical data

• Article number: CNMG190612-RP7-WKP30S-WALTER
• Designation: CNMG190612-RP7 WKP30S
• Type: indexable turning insert
• Series: Tiger·tec Silver
• Grade: WKP30S
• Manufacturer: Walter Tools
• Execution: G
• Tolerance class: M

Core data

• Geometry: Rhombus 80°
• Corner radius: 1.2 mm
• Free angle: 0° (negative)
• Chipbreaker: RP7
• Size: 19 mm
• Thickness: 06
• Material suitability: P / K

Special features

• Coated carbide grade
• Optimised for steel and cast iron machining
• Stable chip formation and wear resistance
• Robust edge for interrupted cuts

FAQ

What materials is this insert suitable for?
The CNMG190612-RP7 WKP30S insert is suitable for ISO groups P (steel) and K (cast iron), benefitting from the Tiger·tec Silver coating for improved wear resistance.

How does the 0° negative rake affect cutting performance?
A 0° negative rake increases edge strength and resistance to chipping during heavy or interrupted cuts, which is why this insert is specified for robust turning operations.

Which chipbreaker should be selected for mixed production?
The RP7 chipbreaker on this insert offers reliable chip control for both steel and cast iron, making it a versatile choice for mixed-production environments.

Is the corner radius appropriate for finishing operations?
The 1.2 mm corner radius balances edge strength and surface integrity; it is suitable for many finishing and semi-finishing tasks while protecting the edge in tougher cuts.

Can this insert be used in standard CNMG toolholders?
Yes, the CNMG190612-RP7 WKP30S conforms to CNMG geometry and is compatible with holders designed for that insert family and size.

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

The Walter AG (brand: Walter Tools) is part of the globally recognised Sandvik Group. Protected trademarks and trade names remain the property of their respective owners. Brand names and protected product designations are mentioned for identification and explanatory purposes only. The offered article is an original, factory-new product of the manufacturer.