CNMG120412-MP3 WPP20G G Wendeplatten - Walter Tools

Combining the Tiger·tec Gold coating with the MP3 chipbreaker and a rhombic 80° geometry delivers stable chip control and prolonged tool life for steel turning; its 1.2 mm corner radius and 0° negative free angle support predictable edge behaviour. Order the insert through Metav Werkzeuge or ask our consultants for cutting-data recommendations.

CNMG120412-MP3 WPP20G — Turning insert, Tiger·tec Gold (Walter Tools)

The CNMG120412-MP3 WPP20G is a rhombic 80° turning insert engineered for machining steel, combining a wear-resistant coating and a reliable chipbreaker for consistent production results.

• Tiger·tec Gold coating for extended tool life
• MP3 chipbreaker for reliable chip control
• Rhombic 80° geometry for stable turning
• Suited for steel (ISO group P) machining

Predictable, efficient performance for steel turning

The coated indexable insert delivers repeatable results in a variety of steel turning tasks. With the Tiger·tec Gold coating and WPP20G grade, hardness and thermal resistance are optimised to handle the heat and wear typical of steel (P) machining. The integrated MP3 chipbreaker is designed to shape chips reliably, reducing the risk of entanglement and helping to maintain machine uptime. For production environments where stability and consistent component finish matter, this geometry supports steady cutting forces and predictable tool wear.

Coating and edge geometry that extend tool life

A combination of coating technology and the insert’s edge geometry translates directly into lower tooling costs per part. The Tiger·tec Gold layer protects the cutting edge against abrasive wear and built-up edge formation, while the rhombic 80° form and 1.2 mm corner radius increase edge strength for interrupted cuts or heavier feeds. The MP3 chipbreaker also assists with heat distribution and chip segmentation, which together reduce flank wear and improve surface finish. This results in longer intervals between indexings and fewer unplanned tool changes.

Practical selection and application guidance

For turning operations in unalloyed and alloyed steels, select the insert according to required surface finish and depth of cut; the negative 0° free angle supports robust inserts for stable cutting conditions. The CNMG geometry is suitable for roughing to finishing when combined with appropriate cutting data. If uncertain about feed and speed values for a specific steel grade, Metav Werkzeuge can supply tailored recommendations and cutting charts. Proper toolholder selection and stable clamping complete the setup for achieving the benefits of the MP3 chipbreaker and the WPP20G grade.

Contact Metav Werkzeuge for tailored cutting data and supply of Walter Tools CNMG120412-MP3 WPP20G; eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: CNMG120412-MP3-WPP20G-WALTER
• Designation: CNMG120412-MP3 WPP20G
• Label: Drehwendeschneidplatte CNMG120412-MP3 WPP20G Walter Tools
• Manufacturer: Walter Tools
• Series: Tiger-tec Gold

Facts

• Size: 12
• Thickness: 04
• Corner radius: 1.2 mm
• Free angle: 0° (negative)
• Tolerance class: M

Special features

• Coating: Tiger·tec Gold
• Grade: WPP20G (coated carbide)
• Chipbreaker: MP3
• Shape: Rhombus 80°
• Execution: G
• Suitable for: Steel (P)

FAQ

What materials is this insert designed for?
The CNMG120412-MP3 WPP20G turning insert from Walter Tools is designed primarily for steel machining (ISO group P), optimised for the heat and chip formation typical of unalloyed and alloyed steels.

How does the MP3 chipbreaker affect chip control?
The MP3 chipbreaker on this insert shapes chips into manageable segments, improving evacuation and reducing the risk of chip-related interruptions during turning operations.

What benefits does the Tiger·tec Gold coating provide?
The Tiger·tec Gold coating increases wear resistance and thermal stability, which helps maintain edge integrity and extend the usable life of the insert under continuous steel-turning conditions.

Is the CNMG120412-MP3 suitable for finishing work?
Yes; with proper cutting parameters and a suitable toolholder, the geometry and 1.2 mm corner radius allow the insert to be used from roughing through to finishing, delivering consistent surface quality.

How should the negative 0° free angle be interpreted for set-up?
A 0° (negative) free angle indicates a robust cutting edge suited to stable, heavier cutting; ensure a rigid toolholder and machine setup to take full advantage of the insert’s edge strength.

Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany. The Walter AG (trading as Walter Tools) is part of the Sandvik group and is a leading manufacturer of precision tools for metalworking. Trademarks and trade names are the property of their respective owners. Brand names are cited for explanation only and there is no affiliation between our company and the named brands. The offered article is an original, factory-new product of the manufacturer.