TNMM220408-HU3 WPP30G WPP30G Wendeplatten - Walter Tools

Take advantage of a proven combination of Tiger·tec Gold coated carbide and an HU3 chipbreaker for reliable steel machining; the triangular 60° geometry with a 0.8 mm nose radius provides stable cutting performance and predictable tool life. Order or request technical advice via Metav Werkzeuge for precise application support.

TNMM220408-HU3 WPP30G turning indexable insert — Tiger·tec Gold coated, for steel, Walter Tools

The TNMM220408-HU3 WPP30G is a triangular 60° turning insert engineered for machining steel, offering a robust negative 0° rake, an HU3 chipbreaker for consistent chip control and a 0.8 mm corner radius for durable edge performance.

• Tiger·tec Gold coated carbide for high productivity
• Optimised HU3 chipbreaker for stable chip control
• Triangle 60° geometry with 0.8 mm corner radius
• Negative 0° rake for a robust cutting edge

High process reliability and material suitability

The coated carbide grade WPP30G, part of the Tiger·tec Gold series, is developed for demanding steel applications (ISO group P). Its multilayer coating and substrate combination ensure improved wear resistance and stable edge retention under the thermal loads typical of steel machining. This translates into fewer insert changes and higher process reliability, with the coating reducing adhesion and flank wear. For users with mixed batch production, the alloy balance of the grade offers a blend of toughness and hardness that supports both roughing and finishing tasks.

Predictable chip formation and surface quality

The HU3 chipbreaker has been developed to shape chips reliably across a range of cutting depths and feeds. Combined with the negative 0° rake, the system reduces the tendency for uncontrolled chip formation and helps maintain a consistent contact geometry, which supports repeatable surface finish. The 0.8 mm corner radius contributes to a compromise between edge strength and achievable finish, lowering the risk of premature edge chipping while enabling satisfactory surface integrity on steel components.

Geometry and handling advantages that save machine time

The triangular 60° plate form provides multiple usable edges and a compact seating geometry that suits short overhang toolholders and stable clamping. With a plate size of 22 and a plate thickness coded 04, the insert integrates easily into common turning toolholders designed for this family. The tolerance class M indicates a machining accuracy level suitable for many industrial turning operations. Overall, the design reduces downtime through straightforward indexing and predictable wear behaviour, supporting efficient shop-floor workflows.

For application-specific advice on the Walter Tools TNMM220408-HU3 WPP30G or to verify compatibility with a particular turning centre, please contact Metav Werkzeuge at info@metav-werkzeuge.com or by phone on +49 2822 7131930 to arrange a technical consultation

Technical data

• Article number: TNMM220408-HU3-WPP30G-WALTER
• Name: Drehwendeschneidplatte TNMM220408-HU3 WPP30G
• Manufacturer: Walter Tools
• Product type: turning indexable insert
• Series: Tiger·tec Gold
• Grade: WPP30G

Facts

• Plate size: 22 mm
• Plate thickness: 04
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Plate form: triangle 60°
• Chipbreaker: HU3
• Tolerance class: M

Special features

• Coating: Tiger·tec Gold (coated carbide)
• Material suitability: steel (P)
• Robust cutting edge for general steel turning
• Designed for predictable chip control
• Three cutting edges per triangular insert

FAQ

What steels is this insert suited for?
The TNMM220408-HU3 WPP30G from Walter Tools is formulated for ISO group P materials, i.e. unalloyed and alloyed steels, with the coating and substrate optimised for the heat and chip formation typical of steel machining.

How does the HU3 chipbreaker influence performance?
The HU3 chipbreaker promotes controlled chip formation and evacuation, improving surface consistency and reducing the risk of chip-related interruptions when using the TNMM220408-HU3 WPP30G insert.

Can the triangular plate be indexed to restore the cutting edge?
Yes, the triangular 60° geometry provides multiple usable cutting edges, allowing indexing to a fresh edge when the active corner shows wear, thereby extending usable insert life.

What advantage does the negative 0° rake provide?
A negative 0° rake offers a more robust cutting edge and increased resistance to chipping when machining steels, which benefits interrupted cuts or unstable clamping conditions using this Walter Tools insert.

Is this insert suitable for finishing operations?
The combination of a 0.8 mm corner radius and the Tiger·tec Gold coating enables acceptable surface quality in finishing passes on steel; selection of feed and depth of cut should be tuned to achieve the required finish.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

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