LNHU090404R-L85T WK10 Wendeplatten - Walter Tools

Take advantage of the combination of robust edge strength, precise chip control and a compact rectangular format for consistent machining results. The uncoated WK10 grade together with a L85T chipbreaker supports stable cutting and predictable tool life — order the insert directly via Metav Werkzeuge or consult our application specialists for compatibility advice.

LNHU090404R-L85T WK10 – milling indexable insert (rectangular 09, 0.4 mm radius) by Walter Tools

The LNHU090404R-L85T WK10 is a rectangular milling insert designed for secure, repeatable milling operations where reliable chip control and edge stability are required.

• Uncoated carbide grade WK10
• Negative 0° free angle for secure cutting
• Rectangular 09 format, 0.4 mm corner radius
• L85T chipbreaker for controlled chips

Predictable performance through robust geometry and grade

The insert combines the WK10 uncoated carbide grade with a negative 0° free angle, a geometry that prioritises edge strength over aggressive cutting. This makes the component particularly well suited to interrupted cuts or applications where edge robustness limits microchipping and reduces unexpected tool changes. The uncoated carbide composition offers a straightforward cutting behaviour; customers are advised to verify suitability against the manufacturer’s product matrix for specific workpiece materials and cutting parameters.

Consistent chip formation for easier process control

The integrated L85T chipbreaker is designed to produce short, well formed chips that evacuate reliably from the cutting zone. Controlled chip formation lowers the risk of built-up edge and clamp interference, which in turn helps to maintain a constant surface finish and reduces downtime for chip clearing. Where coolant and chip evacuation are restricted, this chipbreaker geometry supports safer operation and easier downstream handling of swarf.

Compact format that balances strength and accessibility

Presented in a rectangular 09 format with a 0.4 mm corner radius, the insert provides a firm corner for stable engagement while remaining accessible for fine finishing passes. The thickness code 04 and the tolerance class H reflect the manufacturing precision and fit expected from this series; these details help ensure repeatable seating in compatible toolholders and predictable runout behaviour on the cutter body.

Seamless workshop integration and brand assurance

The insert is part of Walter Tools’ open series of cutting grades and is intended for straightforward integration into standard milling tool systems that accept the corresponding ISO designation. Walter Tools is known for process-orientated solutions and reliable tool performance, making this component a practical option for production and jobshop environments where consistent results matter. For supply, compatibility checks or application recommendations, Metav Werkzeuge can provide technical advice and stock information.

For guaranteed genuine Walter Tools inserts and tailored application guidance, contact Metav Werkzeuge for availability and recommendations via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: LNHU090404R-L85T-WK10-WALTER
• ISO designation: LNHU090404R-L85T WK10
• Manufacturer: Walter Tools
• Type: milling indexable insert

Facts

• Corner radius: 0.4 mm
• Free angle: 0° (negative)
• Format code: 09
• Thickness code: 04
• Tolerance class: H

Special features

• Chipbreaker: L85T
• Grade: uncoated carbide (WK10)
• Shape: rectangular
• Series: Walter Schneidstoffsorte - Serie offen
• Execution: U

FAQ

What materials is this insert suitable for?
The WK10 grade is an uncoated carbide; material suitability should be checked against Walter Tools’ product matrix and the LNHU090404R-L85T WK10 technical data to confirm suitability for specific steels or alloys.

How does a negative 0° free angle affect machining?
A negative 0° free angle increases edge strength and stability; the LNHU090404R-L85T WK10 geometry therefore favours interrupted cuts and applications where a robust cutting edge is required.

What benefit does the L85T chipbreaker provide?
The L85T chipbreaker promotes short, controlled chips and reliable evacuation, reducing the risk of built-up edge and improving surface consistency when using the insert.

Which toolholders accept this insert?
The insert uses a standard ISO-style designation (LNHU090404R-L85T); compatibility depends on the cutter body or holder that accepts rectangular 09 inserts — check the holder specifications and the insert’s ISO code.

What does tolerance class H indicate?
Tolerance class H denotes the manufacturing tolerance for the insert, which affects fit and repeatability in the toolholder and contributes to predictable machining performance.

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

The Walter AG (brand appearance: Walter Tools) is part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only; there is no connection between our company and the brands named. The offered item is an original, factory-new product of the manufacturer.