WNGA080408TS-3 WBK20 WBK20 Wendeplatten - Walter Tools

Take advantage of the combination of CBN grade WBK20 for extended tool life, the Trigon 80° geometry for stable cutting engagement and a 0.8 mm corner radius for reproducible edge strength; order directly through Metav Werkzeuge or consult our application specialists for milling and turning strategies.

WNGA080408TS-3 WBK20 indexable turning insert — CBN grade, Trigon 80° by Walter Tools

WNGA080408TS-3 WBK20 is an indexable turning insert developed for high-wear, hard turning tasks in hardened steels and similar alloys

• CBN grade WBK20 for hard turning
• Trigon 80° insert for stable cutting
• 0° negative clearance for robust engagement
• Corner radius 0.8 mm for reproducible edge

High productivity for hard and abrasive tasks

The CBN-based WBK20 grade offers significantly improved wear resistance compared with conventional carbide grades, making the insert especially suitable for high-abrasion and hardened-material applications. The combination of a CBN grade WBK20 substrate and a positively designed chip control supports longer cutting intervals and fewer tool changes, which contributes directly to higher process efficiency and reduced cycle times. Operators benefit from consistent component quality during extended runs.

Stable geometry that reduces vibration and improves surface finish

The Trigon 80° form delivers a broad, stable seating area and a robust cutting edge that minimises deflection under heavy radial loads. The insert’s geometry, paired with a corner radius of 0.8 mm, stabilises the cutting process and helps to achieve reproducible edge integrity, producing a more uniform surface finish on difficult-to-machine workpieces. For operations where dimensional repeatability matters, this geometry supports predictable tool behaviour.

Secure engagement and reliable chip control

A 0° negative clearance results in a strong, locked cutting engagement that is advantageous in interrupted cuts and unstable setups. Combined with the specified chipbreaker 3, the insert offers controlled chip formation across variable cutting conditions. This pairing reduces the risk of long, tangled chips and supports safer automated operation while maintaining consistent chip evacuation and cutting forces.

Application guidance and material suitability

The insert is supplied in the Walter Schneidstoffsorte – Serie offen and carries the designation WNGA080408TS-3 WBK20. As a CBN solution, it is primarily intended for hardened steels and other high-wear materials; the exact suitability should be verified against the product matrix for the intended workpiece material. For customers seeking a balance between productivity and repeatable quality, this indexable insert supports demanding turning cycles where edge life and process stability are critical.

Contact Metav Werkzeuge today for application advice and to confirm material suitability for the WNGA080408TS-3 WBK20; specialists are available at info@metav-werkzeuge.com or by phone on +49 2822 7131930 to discuss tooling strategies and availability

Technical Data

• Article number: WNGA080408TS-3-WBK20-WALTER
• Designation: WNGA080408TS-3 WBK20
• Grade: WBK20
• Series: Walter Schneidstoffsorte - Serie offen

Facts

• Insert form: Trigon 80°
• Inscribed circle designation: 08
• Thickness designation: 04
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Chipbreaker: 3
• Tolerance class: G
• Execution: A

Special features

• CBN cutting material
• Intended for hard and high-wear machining (check product matrix)
• Stable insert geometry for interrupted cuts
• Designed for reproducible edge strength and controlled chip formation

FAQ

What materials is this insert designed for?
The WNGA080408TS-3 WBK20 indexable turning insert uses a CBN-based WBK20 grade and is aimed at hardened steels and other high-wear materials; consult the product matrix to confirm suitability for specific alloys.

How does the Trigon 80° form affect machining?
Trigon 80° geometry offers a wide seating and a robust edge that reduces vibration and supports stable cutting, which helps to improve surface finish and dimensional repeatability when using the WNGA080408TS-3 WBK20.

Why choose a 0° negative clearance specification?
A 0° negative clearance provides a secure, locked engagement beneficial for interrupted cuts and unstable setups; combined with the chipbreaker 3 it ensures controlled chip formation and safer automated operation.

What role does the 0.8 mm corner radius play?
The 0.8 mm corner radius increases edge strength and helps to distribute cutting forces, resulting in consistent cutting performance and improved edge life for abrasive or hardened materials.

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

Walter AG (brand: Walter Tools), with headquarters in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and forms part of the Swedish Sandvik Group. Protected trademarks and product names are the property of their respective owners and are mentioned solely for explanation. There is no connection between our company and the mentioned brands beyond the sale of original, factory-new goods.