LNHU090404R-L55T WAK15 Wendeplatten - Walter Tools

Benefit from precise aluminium machining thanks to the sharp WAK15 grade and the insert's 0° negative rake; the rectangular form with a 0.4 mm corner radius ensures stable edge definition and predictable chip behaviour — order the LNHU090404R-L55T WAK15 directly via Metav Werkzeuge or consult the team for application guidance.

LNHU090404R-L55T WAK15 rectangular milling insert, 0° negative rake — Walter Tools

A LNHU090404R-L55T WAK15 rectangular indexable milling insert designed for high-quality machining of aluminium and other non‑ferrous metals in light to medium‑duty production.

• Optimised for aluminium and non‑ferrous metals
• Uncoated carbide grade WAK15 for sharp edges
• Rectangular insert with 0° negative rake
• 0.4 mm corner radius for fine edge definition

Consistent surface quality for aluminium components

The combination of the WAK15 uncoated carbide grade and a geometry tailored for non‑ferrous alloys delivers noticeably improved surface finishes when machining aluminium and similar materials. The sharp, wear‑resistant cutting edge reduces material adhesion and burr formation, which translates into fewer secondary operations and a more efficient production flow. As a result, components leave the machine with consistent tolerance adherence and reduced rework.

Stable chip control and predictable tool life from dedicated geometry

A rectangular form with a 0° negative rake and the L55T chipbreaker provide controlled chip formation and evacuation during milling. This geometry supports higher feeds where suitable, increasing material removal rates without compromising edge stability. The modest 0.4 mm corner radius helps maintain edge integrity under intermittent loading, offering a balance between edge strength and fine detail — particularly beneficial in profile milling and shoulder operations on soft metals.

Seamless system integration for productive machining

Belonging to the Walter N‑grade system, the insert is designed for reliable interchangeability and repeatable performance across a production cell. The execution marked U and tolerance class H ensure dimensional stability in tool holders and quick index changes, which reduces downtime and streamlines tool management. For shops seeking straightforward tooling solutions for non‑ferrous machining, this insert supports predictable cycle times and consistent part quality.

Contact Metav Werkzeuge for application suggestions, availability and tailored recommendations for Walter Tools inserts — eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930

Technical data

• SKU: LNHU090404R-L55T-WAK15-WALTER
• Designation: LNHU090404R-L55T WAK15
• Manufacturer: Walter Tools
• Series: Walter N‑grade system
• Grade: WAK15 (uncoated carbide)
• Execution: U
• Tolerance class: H

Core data

• Corner radius: 0.4 mm
• Free rake angle: 0° (negative)
• Plate size: 09
• Plate thickness: 04
• Chipbreaker: L55T

Special features

• Rectangular plate form
• Optimised for aluminium and non‑ferrous metals
• Uncoated carbide for very sharp edges
• Stable chip control for light to medium cuts
• Consistent indexability within Walter N system

FAQ

What materials is this insert suitable for?
The LNHU090404R-L55T WAK15 is optimised for aluminium and other non‑ferrous metals; the WAK15 grade and geometry reduce material adhesion during machining.

Is the insert coated?
No, this insert uses an uncoated carbide grade (WAK15) to maintain very sharp cutting edges for non‑ferrous applications.

What does the 0° negative rake mean in practice?
A 0° negative rake offers a stable cutting edge with less tendency to deflect under load, improving edge life and process reliability in interrupted or heavier passes.

How does the L55T chipbreaker influence performance?
The L55T chipbreaker promotes controlled chip formation and evacuation, which supports higher productivity and reduces the risk of material build‑up on the cutting edge.

Which tool system is this insert part of?
This plate is part of the Walter N‑grade system, ensuring repeatable positioning and straightforward interchangeability in compatible tool holders.

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

Trademarked names and product designations are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only and do not imply any affiliation between our company and the named brands. The offered item is an original, factory‑new product of the manufacturer Walter Tools.