LNMU150812T-F27T WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver technology and the WKP25S coated carbide grade for consistent edge life and reliable chip control; the rectangular form with a 1.2 mm corner radius and 0° negative relief ensures stable milling of steel and cast iron. Order the insert directly via Metav Werkzeuge or contact their consultants for application-specific recommendations.

LNMU150812T-F27T WKP25S milling indexable insert for steel and cast iron — Walter Tools

The LNMU150812T-F27T WKP25S is a rectangular milling insert optimised for medium-duty to heavy-duty machining of steel and cast iron, offering stable cutting performance and predictable tool life.

• Tiger·tec Silver coating for stable cutting
• WKP25S coated carbide grade
• 0° negative relief for secure cutting edges
• Rectangular 15 mm insert with 1.2 mm radius

Increased productivity through consistent edge life

The combination of Tiger·tec Silver coating and the WKP25S carbide grade results in a predictable wear pattern and extended service intervals, which directly supports higher machine utilisation. The temper-resistant coating reduces adhesive and abrasive wear during the high temperatures typically encountered when machining steel and cast iron, so tool changeovers become less frequent and process reliability improves. This leads to measurable gains in throughput and a lower cost per component, particularly in batch production or continuous milling operations.

Reliable chip control and secure cutting geometry

Equipped with the F27T chipbreaker and a 0° negative relief, the insert is designed to produce short, controllable chips on interrupted and continuous cuts. A chipbreaker shapes the swarf to avoid nesting and tool-clogging, which reduces the risk of workpiece damage and machine stoppages. The rectangular design combined with the corner radius 1.2 mm gives robust cutting edges that withstand higher radial forces while maintaining surface finish quality; this makes the insert suitable for slotting, ramping and shoulder milling where stability is essential.

Practical integration and machining guidance

The insert’s nominal 15 mm size and 08 thickness deliver a compact yet rigid cutting geometry that fits many common milling toolholders. The tolerance class M and execution U indicate standard dimensional accuracy and the insert’s orientation; these details simplify tool selection and ensure interchangeability in established tool systems. For optimal results, pair the insert with appropriate cutting parameters for steel and cast iron, and consider coolant strategy and spindle power to exploit the coating and grade benefits. Walter Tools’ grade selection is engineered for broad material coverage and consistent performance.

Contact Metav Werkzeuge today for tailored machining parameters and stock availability of Walter Tools LNMU150812T-F27T WKP25S milling inserts

Technical data

• Article number (SKU): LNMU150812T-F27T-WKP25S-WALTER
• Product label: Fräswendeschneidplatte LNMU150812T-F27T WKP25S Walter Tools
• Product type: milling indexable insert
• Manufacturer: Walter Tools

Facts

• Insert size: 15 mm
• Corner radius: 1.2 mm
• Thickness: 08
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger-tec Silver
• Grade: WKP25S (coated carbide)
• Chipbreaker: F27T
• Plate shape: rectangular
• Execution: U
• Material suitability: steel (P), cast iron (K)

FAQ

Which materials is this insert suitable for?
The insert is optimised for machining steel (group P) and cast iron (group K); the WKP25S grade and Tiger·tec Silver coating support these applications.

What does the F27T chipbreaker achieve?
The F27T chipbreaker organises swarf into short, controllable chips to reduce clogging and improve process stability when using the LNMU150812T-F27T WKP25S insert.

How does the 0° negative relief affect cutting?
A 0° negative relief increases cutting-edge support and reduces the risk of edge chipping in heavy cuts, improving security of the cutting edge under higher radial forces.

Is this insert compatible with standard rectangular toolholders?
Yes, the rectangular 15 mm format and tolerance class M make the insert compatible with common rectangular milling toolholders specified for this geometry.

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