LNHU160812-F57T WKP25S U Wendeplatten - Walter Tools

Benefit from the combination of broad material capability, high cutting-edge stability and effective chip control; order the LNHU160812-F57T WKP25S insert directly via Metav Werkzeuge or consult their specialists for tailored advice.

LNHU160812-F57T WKP25S indexable milling insert – Tiger·tec Silver grade for steel and cast iron, 0° negative, Walter Tools

The LNHU160812-F57S WKP25S is an indexable milling insert designed for productive face and shoulder milling in steel and cast iron, utilising Tiger·tec Silver coating technology to extend tool life and process reliability.

• Tiger·tec Silver coating for stable cutting
• WKP25S grade optimised for steel and cast iron
• Rectangular 16 size with 1.2 mm corner radius
• 0° negative rake for secure engagement

High productivity through a coated, wear-resistant grade

The LNHU160812-F57T WKP25S combines the Tiger·tec Silver coating with a specially developed WKP25S grade to deliver coated carbide performance tailored to the heat and abrasion typical of P and K materials. This results in greater tool life and a more predictable wear pattern, which directly reduces tool change frequency and supports continuous production. The chemistry and coating stack behind the grade are optimised to maintain a stable cutting edge under varying cutting conditions, offering measurable gains in process efficiency for series production and single-part runs alike.

Consistent chip control and secure cutting geometry

The insert’s chipbreaker F57T and 0° negative rake work together to produce controlled, short chips when machining cast iron and stable chips when cutting steel, improving evacuation and reducing re-cutting. The 1.2 mm corner radius supports robust edge strength and helps maintain surface quality with each pass. As a rectangular insert, it provides predictable engagement and repeatable contact geometry, which simplifies programming and holder selection while reducing vibration and the risk of workpiece damage.

Streamlined tooling and integration for efficient workflows

By covering both P (steel) and K (cast iron) material groups, this insert lowers the need for multiple specialised grades in a tool cabinet, supporting leaner inventory and faster set-ups. The tolerance class H ensures consistent dimensions for reliable clamping and repeatable results across tool changes. Integration into standard cutter bodies is straightforward thanks to the common designation and form factor; process planners benefit from predictable cutting data and shorter qualification times. For application-specific data or geometry checks, technical consultation is available to confirm suitability for particular holders and components.

Contact Metav Werkzeuge for application advice and procurement of Walter Tools LNHU160812-F57T WKP25S inserts – eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930

Technical Data

• Article number: LNHU160812-F57T-WKP25S-WALTER
• Designation: LNHU160812-F57T
• Full designation: LNHU160812-F57T WKP25S
• Manufacturer: Walter Tools
• Product type: Indexable milling insert

Facts

• Size: 16
• Thickness: 08
• Corner radius: 1.2 mm
• Free angle: 0° (negative)
• Tolerance class: H

Special features

• Series: Tiger·tec Silver
• Grade: WKP25S
• Chipbreaker: F57T
• Material suitability: P / K (steel, cast iron)
• Insert form: Rectangular
• Execution: U

FAQ

Which materials is this insert suitable for?
The LNHU160812-F57T WKP25S is designed for machining steel (P) and cast iron (K), matching ISO material group recommendations for this grade and coating.

How does the Tiger·tec Silver coating help in production?
Tiger·tec Silver increases wear resistance and cutting-edge stability on the WKP25S grade, extending tool life and improving process reliability under typical steel and cast-iron cutting conditions.

What is the effect of the 0° negative rake?
A 0° negative rake provides secure engagement and edge strength, reducing the risk of edge chipping during interrupted cuts and supporting stable chip formation with the F57T chipbreaker.

Is the geometry compatible with standard cutter bodies?
The rectangular form and tolerance class H ensure dimensional consistency for common cutter systems; however, the clamping pocket and seat should be checked against the insert’s full designation before assembly.

What surface finish can be expected with the 1.2 mm corner radius?
A 1.2 mm corner radius balances edge strength and surface quality, producing improved finish compared with larger radii while maintaining robustness for medium-depth milling passes.

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

Protected trademarks and trade names are the property of their respective owners. Brand names are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered article is original, factory-new goods from the manufacturer.