TNMM270612-HU3 WPP20G WPP20G Wendeplatten - Walter Tools

The combination of Tiger·tec Gold coating and the WPP20G grade delivers extended edge life and consistent performance in steel turning; the robust HU3 chipbreaker ensures controlled chip formation for predictable machining. Order directly via Metav Werkzeuge or consult our specialists for tailored application advice.

TNMM270612-HU3 WPP20G Triangle Turning Insert for Steel — Walter Tools

The TNMM270612-HU3 WPP20G is a 60° triangle turning insert designed for reliable, high‑productivity machining of steels, featuring a Tiger·tec Gold coated carbide grade and an HU3 chipbreaker for stable chip control.

• Tiger·tec Gold coated carbide for long tool life
• Optimised HU3 chipbreaker for controlled chips
• Triangle 60° form with 1.2 mm corner radius
• Designed for steel machining, grade WPP20G

Higher throughput and predictable tool life for steel turning

The coated carbide grade WPP20G, part of the Tiger·tec Gold series, is engineered for machining steels (ISO group P) where consistent wear behaviour and wide material coverage are essential. The combination of a wear‑resistant coating and a universal toughness balance enables higher cutting parameters without sacrificing edge security, resulting in improved productivity and lower tooling cost per component. The HU3 chipbreaker is tuned to promote short, controlled chips in typical steel cutting conditions, reducing the risk of entanglement and making chip handling more predictable on automated machines.

Robust geometry for stable cuts and repeatable surface quality

The insert’s triangle 60° geometry with a 1.2 mm corner radius provides a reliable edge for general turning tasks and intermittent cuts. A 0° negative rake increases edge strength, which is beneficial for interrupted cuts or heavy‑duty turning where robustness is required over light‑finishing characteristics. These geometric choices contribute directly to process stability: the larger corner radius increases flank support and extends edge life, while the insert form offers multiple indexable positions to maximise usable cutting edge per insert.

Practical application notes and mounting considerations

This turning insert is supplied in the designation TNMM270612‑HU3 and is compatible with standard toolholders that accept TNMM triangular inserts. The thickness code 06 and insert size 27 are industry‑standard identifiers to ensure correct seating and clamp fit in compatible turning tool bodies. For best results on steels, start with conservative cutting parameters and increase feed or speed while monitoring tool wear; the WPP20G grade is designed to balance wear resistance and toughness across a broad range of steel alloys, helping to maintain surface finish and dimensional stability over extended runs.

For demanding steel turning where edge life and chip control matter, request the Walter Tools TNMM270612‑HU3 WPP20G via Metav Werkzeuge for fast supply and application support: info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: TNMM270612-HU3-WPP20G-WALTER
• Designation: TNMM270612-HU3 WPP20G
• Product type: Turning insert
• Manufacturer/brand: Walter Tools

Facts

• Insert size: 27 mm
• Corner radius: 1.2 mm
• Thickness code: 06
• Plate form: Triangle 60°
• Rake: 0° (negative)

Special features

• Series: Tiger·tec Gold
• Grade: WPP20G (coated carbide)
• Chipbreaker: HU3
• Application group: Steel (ISO P)
• Tolerance class: M
• Execution: M

FAQ

What materials is this insert intended for?
The TNMM270612‑HU3 WPP20G is specified for steel machining (ISO group P); the WPP20G grade and Tiger·tec Gold technology are optimised for the temperatures and chip behaviour typical of steel turning.

Which chip behaviour can be expected with the HU3 breaker?
The HU3 chipbreaker promotes short, controllable chips in steel turning operations, improving chip evacuation and reducing the likelihood of chip entanglement when using the Walter Tools TNMM270612‑HU3 WPP20G.

Is the insert suitable for interrupted cuts or heavy‑duty turning?
Yes; the 0° negative rake and the 1.2 mm corner radius provide enhanced edge strength and support, making this insert appropriate for interrupted cuts and more robust turning applications.

How many edges are available per insert and what is the form factor?
The triangular 60° form supplies multiple indexable edges per insert; the designation TNMM270612‑HU3 indicates the standard triangular insert geometry compatible with matching TNMM toolholders.

The Walter AG (brand: Walter Tools) with headquarters in Tübingen belongs to the worldwide leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names remain the property of their respective owners. Products are original, factory‑new items of the manufacturer; there is no connection between our company and the referenced brands.