CNMG120412-RP7 WPP05G WPP05G Wendeplatten - Walter Tools

Take advantage of high wear resistance, reliable chip control and the Tiger·tec Gold grade for efficient steel turning; order the insert directly via Metav Werkzeuge or contact our consultants for cutting data and application advice.

CNMG120412-RP7 WPP05G turning insert — Walter Tools, rhombic 80° with RP7 chipbreaker and 0° negative rake

CNMG120412-RP7 WPP05G is a coated carbide turning insert designed for steel machining with a rhombic 80° geometry, offering secure chip control and consistent performance in serial turning applications

• Tiger·tec Gold coated carbide grade WPP05G
• Optimised RP7 chipbreaker for steel machining
• 0° negative rake for secure chip flow control
• Rhombic 80° insert with 1.2 mm corner radius

Proven productivity and extended tool life through modern coating technology

The combination of the Tiger·tec Gold coating and the WPP05G grade provides a robust, coated carbide structure that resists flank wear and thermal degradation during continuous turning of steels. This results in longer tool life and fewer insert changes, which directly reduces machine idle time and contributes to a more predictable production rhythm. The coating technology is specifically engineered to maintain a stable cutting edge at elevated temperatures, delivering measurable process economy in medium to high-volume turning.

Stable cutting performance and process security with RP7 chip control

The RP7 chipbreaker geometry is optimised for chip formation when machining steels, promoting short, controllable chips and reliable evacuation even under interrupted cuts. Combined with the 0° negative rake, this insert favours secure cutting forces and dimensional stability, particularly where robust engagement and edge strength are required. For process planners, this means improved repeatability and a lower risk of edge chipping in demanding turning cycles, supporting consistent part quality.

Geometry and dimensions that support versatile turning operations

A rhombic 80° shape with a 1.2 mm corner radius offers a practical balance between edge strength and surface finish capability. The insert’s size designation and thickness code ensure compatibility with standard toolholders designed for CNMG-style inserts, while the tolerance class M supports precise seating and repeatable positioning. These geometric features translate into reduced setup variation and reliable toolholder compatibility across a range of lathes and turning applications.

Application guidance and material suitability for steel machining

This grade is developed for ISO group P materials, making it particularly suited to unalloyed and alloyed steel grades where typical chip formation and heat generation occur. The insert supports a spectrum of operation modes, from stable finishing to more aggressive semi-finishing cuts, depending on chosen cutting parameters. For optimal results, pairing the insert with appropriate cutting speeds, feeds and coolant strategies helps exploit the Tiger·tec Gold advantages: improved wear resistance and better edge stability for repeatable, economical machining.

Contact Metav Werkzeuge to discuss cutting parameters and secure Walter Tools inserts for high-productivity steel turning; our team will advise on optimal chipbreaker and grade selection and provide immediate order support.

Technical data

• Article number: CNMG120412-RP7-WPP05G-WALTER
• Designation: CNMG120412-RP7 WPP05G
• Manufacturer: Walter Tools
• Series: Tiger·tec Gold
• Grade: WPP05G
• Shape: Rhombus 80°
• Chipbreaker: RP7
• Free rake angle: 0° (negative)

Facts

• Size: 12
• Corner radius: 1.2 mm
• Thickness code: 04
• Tolerance class: M

Special features

• Coated carbide grade WPP05G (Tiger·tec Gold)
• Suited for ISO group P (steel)
• Robust cutting edge for interrupted cuts
• Optimised chip formation for steel turning

FAQ

What materials is this insert recommended for?
The CNMG120412-RP7 WPP05G insert is recommended for ISO group P materials, specifically unalloyed and alloyed steel, where its Tiger·tec Gold coating and RP7 chipbreaker ensure consistent chip control.

How does the 0° negative rake affect machining?
A 0° negative rake increases edge strength and stability; with the WPP05G grade this promotes secure cutting conditions and reliable dimensional control in tougher turning operations.

Which chip form can be expected with the RP7 breaker?
The RP7 chipbreaker is engineered to produce short, controllable chips when machining steel, improving evacuation and reducing the chance of entanglement.

Is the insert compatible with standard CNMG toolholders?
Yes, the rhombic 80° CNMG format and the insert’s size code match conventional CNMG toolholders, allowing straightforward integration into existing turning setups.

Can this insert be used for finishing and semi-finishing?
The grade and geometry support both finishing and semi-finishing operations in steel, depending on cutting speed and feed selection to balance surface finish and tool life.

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

Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik-Konzerns. Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.