TNMG270612-RP5 WPP20G Wendeplatten - Walter Tools

Take advantage of the combination of consistent chip control, Tiger·tec Gold coating and a robust negative geometry to achieve reliable, productive turning operations; order the TNMG270612-RP5 WPP20G insert directly via Metav Werkzeuge or consult the Metav team for application advice.

TNMG270612-RP5 WPP20G triangle insert — high-performance coated grade from Walter Tools, designed for steel turning

TNMG270612-RP5 WPP20G is a coated carbide triangle insert for general steel machining, offering a balanced mix of wear resistance and toughness for stable production.

*High edge stability with Tiger·tec Gold coating
*Optimised RP5 chipbreaker for consistent chips
*Triangle 60° form for versatile turning operations
*Corner radius 1.2 mm for robust edge strength

Reliable performance for steel machining with optimised coating

The insert is engineered for machining steel (ISO P) and benefits from the Tiger·tec Gold coating technology, which combines a coated carbide substrate with a multi-layer finish to improve thermal resistance and wear behaviour. This results in longer tool life under typical steel cutting conditions and reduced frequency of tool changes, improving machine uptime. The WPP20G grade is described as a universal, slightly wear-resistant option within the Tiger·tec Gold family, providing a sensible compromise between wear resistance and toughness for mixed production batches.

Geometry that supports process stability and chip control

The triangle 60° form and corner radius 1.2 mm give mechanical rigidity and edge strength when facing interrupted cuts or medium-depth turns. The insert’s RP5 chipbreaker is shaped to produce predictable chip formation in a wide range of feeds, reducing entanglement and improving surface consistency. A negative 0° clearance means the insert is suitable for stable, rigid holders and heavy cuts where a robust cutting edge is required. These geometric choices translate to fewer rejects and consistent part quality in short- to medium-run production.

Coating and substrate designed for higher productivity

The grade is a coated cemented carbide belonging to the Tiger·tec Gold series; the surface treatment enhances hardness at cutting temperatures and helps maintain a sharp edge for longer. In practice, this means more components per insert and fewer tool change interruptions, which contributes directly to process economy. Where higher cutting speeds and thermal loads occur, the coating’s thermal barrier properties reduce notch wear and flank degradation, thereby extending useful tool life in demanding steel applications.

Practical application and handling in production environments

The insert is sized for conventional turning toolholders that accept TNMG 27-series inserts and is well suited for medium finishing and roughing tasks on unalloyed and alloyed steels. The balanced grade composition supports a range of feeds and depths of cut without immediate edge failure, making it a pragmatic choice for job shops and production lines seeking reliable throughput. For mounting, standard TNMG clamping systems apply; correct seat cleanliness and torque ensure the negative geometry performs as intended and secures process stability.

For tailored recommendations on replacing existing inserts with Tiger·tec Gold WPP20G or to discuss suitable holders and cutting data, contact Metav Werkzeuge for application support and ordering assistance at info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• *SKU: TNMG270612-RP5-WPP20G-WALTER
• Designation: TNMG270612-RP5 WPP20G
• Brand: Walter Tools
• Series: Tiger-tec Gold
• Grade: WPP20G
• Product type: Drehwendeschneidplatte (turning insert)*

Facts

• *Insert size (inscribed circle): 27
• Thickness: 06
• Corner radius: 1.2 mm
• Insert form: Triangle 60°
• Clearance angle: 0° (negative)
• Chipbreaker: RP5
• Tolerance class: M
• Material application: Steel (ISO P)*

Special features

• *Coating: Tiger·tec Gold coated carbide
• Substrate: coated cemented carbide (WPP20G)
• Optimised chip control for steel machining
• Balanced wear resistance and toughness for general turning*

FAQ

What materials is this insert intended for?
The TNMG270612-RP5 WPP20G insert is designed primarily for steel machining (ISO P) and performs well on unalloyed and alloyed steels.

How does the Tiger·tec Gold coating benefit production?
Tiger·tec Gold coating on the WPP20G grade improves thermal stability and wear resistance, allowing for longer tool life and more consistent component quality in steel turning.

Which chipbreaker is fitted and what is its effect?
The insert uses the RP5 chipbreaker, which is optimised for consistent chip formation in a variety of feeds, helping to reduce chip-related interruptions and improve surface finish.

What does the negative 0° clearance mean for clamping and cutting?
A 0° negative clearance requires a rigid clamping system and provides a strong cutting edge suitable for heavier cuts and interrupted machining, enhancing process stability.

What corner radius is recommended for robustness and finish?
This insert features a 1.2 mm corner radius, offering a robust edge for moderate roughing and finishing operations while contributing to good edge life.

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

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