CNMM120408-HU5 WPP20G WPP20G Wendeplatten - Walter Tools

High-performance machining results from the combination of Tiger·tec Gold coating and a purpose-designed HU5 chipbreaker, delivering consistent productivity and predictable tool life in steel turning; order directly via Metav Werkzeuge or consult the technical team for application support.

CNMM120408-HU5 WPP20G turning indexable insert for steel — Walter Tools

The CNMM120408-HU5 WPP20G is a rhombic 80° turning insert with a negative 0° relief angle, designed for efficient ISO P (steel) machining where stable chip formation and high productivity are required.

• Tiger·tec Gold coated carbide for high productivity
• Optimised HU5 chipbreaker for reliable chip control
• Rhombic 80° insert with 0.8 mm corner radius
• Negative 0° clearance for secure edge support

Consistent productivity for steel turning operations

The coated carbide grade used in this insert is engineered for a broad range of steel applications and is part of the Tiger·tec Gold series, which delivers a balance of wear resistance and toughness. Because the grade is formulated for the heat and chip behaviour typical of steel cutting, cycle times can be reduced while maintaining repeatable tool life. This geometry is especially suitable for shops seeking a robust, universal cutting solution that combines durability with stable performance.

Controlled chips and stable cutting edge for predictable results

The integrated HU5 chipbreaker ensures controlled chip formation across a variety of cutting conditions, reducing the risk of entangling chips and improving surface quality. The rhombic 80° geometry and 0° clearance provide a secure support for the cutting edge, while the corner radius 0.8 mm helps to distribute cutting forces and delay flank wear. These features result in smoother feeds, fewer interruptions for chip clearing and a more consistent finish on turned components.

Seamless integration and selection guidance for production use

Insert designation CNMM120408 indicates compatibility with standard toolholders for CNMM-style seats; the execution and tolerance class "M" ensure interchangeability in production setups. The WPP20G grade is optimised for steel (ISO P), making it a practical choice for general turning, medium stock removal and finishing passes where a universal, cost-effective coated carbide is preferred. For process planning, assess feed and depth values with the chipbreaker behaviour in mind to exploit the full benefit of the coating and geometry.

Contact Metav Werkzeuge for tailored machining recommendations on Walter Tools Tiger·tec Gold inserts and assistance with selecting the right CNMM insert for specific steel applications

Technical data

• Article number: CNMM120408-HU5-WPP20G-WALTER
• Designation: CNMM120408-HU5 WPP20G
• Manufacturer: Walter Tools
• Product type: Turning indexable insert

Core dimensions

• Inscribed circle / size: 12 mm
• Thickness: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Geometry: Rhombus 80°

Special features

• Coating/series: Tiger·tec Gold
• Grade: WPP20G (coated carbide)
• Chipbreaker: HU5
• Application: Steel (ISO P)
• Execution: M
• Tolerance class: M

FAQ

Which materials is this insert suitable for?
This insert is designed for ISO P applications and is optimised for machining a range of steels using the WPP20G grade.

Is the CNMM120408-HU5 WPP20G coated and what benefit does that provide?
The WPP20G grade is a Tiger·tec Gold coated carbide; the coating improves wear resistance and process stability in steel turning.

What geometry and edge preparation does the insert have?
The insert features a rhombic 80° shape, 0° relief (negative) and a 0.8 mm corner radius, providing secure edge support and improved force distribution.

Which toolholders are compatible with this insert?
The CNMM designation indicates compatibility with holders designed for CNMM 120408 inserts; ensure the seat and clamping match the CNMM form for correct assembly.

Hersteller: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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