CNMM120412-HU7 WPP20G Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Gold wear resistance and the HU7 chipbreaker geometry for efficient, reliable turning of steel; order the CNMM120412-HU7 WPP20G insert from Metav Werkzeuge or contact our consultants for application-specific advice.

CNMM120412-HU7 WPP20G Drehwendeschneidplatte — Walter Tools, Tiger·tec Gold coated insert for steel turning, rhombic 80° geometry

CNMM120412-HU7 WPP20G is a rhombic 80° turning insert designed for steel machining and equipped with the HU7 chipbreaker for controlled chips and stable cutting performance

• Tiger·tec Gold coating for coated carbide grade
• Optimised HU7 chipbreaker for stable chips
• Rhombic 80° geometry for versatile turning
• Corner radius 1.2 mm for consistent edge strength

Consistent performance for steel turning with coated carbide technology

The combination of the Tiger·tec Gold coating and the WPP20G grade delivers a balanced mix of wear resistance and toughness for the machining of steel (material group P). The coated carbide substrate is engineered to handle the typical heat and chip formation encountered in steel turning, so the insert provides stable tool life and predictable wear behaviour. With the rhombic 80° form and a corner radius of 1.2 mm, this insert supports both finishing and light roughing operations while maintaining dimensional consistency and surface quality.

Reliable chip control and surface quality from HU7 geometry

The HU7 chipbreaker is optimised to produce short, consistent chips when cutting steels, reducing interruptions and helping to avoid chip nestling around the workpiece. This controlled chip formation contributes directly to process reliability and a cleaner work environment at the machine. The negative 0° rake (negative geometry) enhances edge strength, allowing the insert to resist chipping under interrupted cuts and thus sustain repeatable surface finish over longer production runs.

Geometry and compatibility that aid process stability

The insert uses an inscribed circle of 12 mm and a rhombic 80° shape that fits widely used toolholders for turning operations. The plate thickness and tolerance class M ensure mechanical stability in the seat and reproducible clamping, which is essential for high-volume production. The combination of negative rake, robust edge form and the WPP20G grade means the insert is particularly suitable where a compromise between productivity and tool life is required for steel machining applications.

Productivity benefits and economical wear behaviour

By selecting the CNMM120412-HU7 WPP20G insert, shops can expect a productive machining strategy thanks to the coating technology and chipbreaker pairing: fewer tool changes, consistent results across batches and improved uptime. The insert’s design focuses on reliable chip control, reduced built-up edge risk and consistent cutting edge integrity, which together support shorter cycle times and predictable maintenance intervals. For customers seeking a standardised, repeatable solution for steel turning, this insert offers practical advantages without complicating the tool inventory.

For specific machining recommendations and to ensure the best toolholder and parameter selection for the Walter Tools CNMM120412-HU7 WPP20G insert, contact Metav Werkzeuge for tailored technical advice via e‑mail or phone.

Technical data

• Article number: CNMM120412-HU7-WPP20G-WALTER
• SKU: CNMM120412-HU7-WPP20G-WALTER
• Label: Drehwendeschneidplatte CNMM120412-HU7 WPP20G Walter Tools

Facts

• Inscribed circle: 12
• Corner radius: 1.2 mm
• Free angle: 0° (negative)
• Plate form: Rhombus 80°
• Grade/Series: WPP20G / Tiger·tec Gold
• Execution / tolerance class: M

Special features

• HU7 chipbreaker
• Coated carbide grade (WPP20G)
• Designed for material group P (steel)
• Tolerances suited for stable clamping and repeatability
• Negative rake geometry for edge strength

FAQ

What materials is this insert intended for?
The CNMM120412-HU7 WPP20G insert is designed primarily for machining steel (material group P) and is optimised for the thermal and chip-formation characteristics typical of such alloys.

How does the HU7 chipbreaker affect machining?
The HU7 chipbreaker on the CNMM120412-HU7 WPP20G provides reliable chip control, producing short, manageable chips that enhance process reliability and surface quality during steel turning.

Is the Tiger·tec Gold grade suitable for mixed production runs?
Yes, the Tiger·tec Gold WPP20G grade offers a balance of wear resistance and toughness, making it suitable for a range of steel applications where both tool life and consistent performance are required.

What does the negative 0° rake mean for cutting conditions?
The negative 0° rake on this rhombic insert increases edge robustness, improving resistance to chipping on interrupted cuts and supporting stable cutting under heavier engagement.

Which toolholders are compatible with the rhombic 80° CNMM insert?
The rhombic 80° geometry and 12 inscribed circle of this insert match common turning toolholders designed for CNMM-type inserts; confirm holder seat and clamping dimensions to ensure proper fit and repeatability.

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

The Walter AG (brand appearance: Walter Tools) is part of the Sandvik Group and is among the world’s leading manufacturers of precision metalcutting tools; protected trademarks and trade names remain the property of their respective owners.