SPMW120408-A57 WAK15 Wendeplatten - Walter Tools

Take advantage of a dedicated solution for non‑ferrous machining that combines a sharp, uncoated carbide grade with a purpose‑designed chipbreaker and precise geometry for repeatable results; order the insert directly via Metav Werkzeuge or consult our team for cutting data and availability.

SPMW120408-A57 WAK15 — milling indexable insert, A57 chipbreaker, 11° relief — Walter Tools

A SPMW120408-A57 WAK15 milling indexable insert designed for high‑efficiency machining of aluminium and other non‑ferrous metals in the Walter N‑system family.

• Optimised for aluminium and non‑ferrous metals
• Uncoated carbide grade WAK15
• Square 90° form, 0.8 mm corner radius
• A57 chipbreaker for stable chip formation

Optimised performance for aluminium and non‑ferrous alloys

The uncoated carbide WAK15 grade and sharp cutting geometry are engineered for effective cutting of aluminium and similar non‑ferrous materials. The combination reduces material adhesion and minimises built‑up edge, which is essential when machining soft, ductile alloys. By relying on a dedicated grade rather than a general‑purpose tool, the insert delivers improved edge life and reliability under typical feed and speed conditions encountered in high‑volume production.

Predictable chip control and improved surface finish

The A57 chipbreaker provides consistent chip formation and evacuation, reducing the risk of tangling or re‑cutting. Stable chips lead directly to more consistent surface quality and fewer interruptions on automated processes. For operators without extensive experience in chipbreaker selection: a purpose‑designed breaker like A57 shapes the chip curl to break cleanly at moderate depths of cut, so the machining process becomes less sensitive to small variations in feed or coolant strategy.

Precise geometry for easy tool indexing and repeatability

A square 90° form with a 0.8 mm corner radius and 11° relief angle yields a robust and repeatable cutting edge that is tolerant to light contact and seat repositioning. The tolerance class M ensures dimensional conformity for mechanical holders, facilitating quick index changes and minimising downtime. These geometric choices balance edge strength with accessibility to tight features, making the insert suitable for a wide range of milling operations where reproducible results are required.

System compatibility and production efficiency

As part of the Walter N‑Sortensystem, the insert integrates seamlessly with established Walter toolholders and clamping systems. The straightforward geometry and uncoated grade simplify selection and reduce the need for special process adjustments, supporting a predictable process window and easing machine setup. For workshops aiming to maintain stable production, this approach helps to lower engineering time per tool change and supports consistent component output.

Contact Metav Werkzeuge for availability and tailored cutting recommendations for Walter Tools inserts — our technical consultants can advise on feeds, speeds and holder compatibility to maximise performance.

Technical data

• Article number: SPMW120408-A57-WAK15-WALTER
• Designation: SPMW120408-A57 WAK15
• Product type: Fräswendeschneidplatte / milling indexable insert
• Manufacturer: Walter Tools
• Series: Walter N-Sortensystem
• Grade: WAK15
• Execution: W

Facts

• Relief angle: 11°
• Corner radius: 0.8 mm
• Insert size: 12 mm
• Thickness: 4 mm
• Tolerance class: M

Special features

• Square 90° plate form
• A57 chipbreaker
• Uncoated carbide (WAK15)
• Suited for aluminium and non‑ferrous metals
• Stable chip formation, optimised for productive milling

FAQ

What materials is this insert best suited for?
The insert is designed for machining aluminium and other non‑ferrous metals; the uncoated WAK15 grade and A57 chipbreaker minimise material adhesion and promote reliable chip control.

How does the A57 chipbreaker affect machining?
The A57 chipbreaker controls chip curl and breakage, improving chip evacuation and contributing to a more consistent surface finish and fewer process interruptions.

Is the insert compatible with standard Walter holders?
Yes, the insert belongs to the Walter N‑Sortensystem and is compatible with holders designed for SPMW‑type square inserts, enabling straightforward indexing and replacement.

What does the 0.8 mm corner radius mean for edge strength?
A 0.8 mm corner radius provides a balance between edge strength and sharpness: it supports longer edge life than very small radii while still delivering acceptable cutting access for typical milling profiles.

What tolerance class is supplied and why does it matter?
The insert is supplied in tolerance class M, ensuring dimensional consistency for reliable seating and repeatable tool positioning in production environments.

Walter Tools is a brand of Walter Deutschland GmbH; Derendinger Straße 53, 72072 Tübingen. Trademarks and trade names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no connection between our company and the mentioned brands. The offered article is original factory‑new goods of the manufacturer.