SPMT1204AEN WAK15 T Wendeplatten - Walter Tools

Take advantage of a sharp, uncoated WAK15 grade for efficient aluminium machining combined with a square 90° geometry and 11° clearance for predictable cutting behaviour. Order through Metav Werkzeuge for fast availability or consult their technical team for application-specific recommendations.

SPMT1204AEN WAK15 milling indexable insert by Walter Tools — uncoated carbide, for aluminium

The SPMT1204AEN WAK15 is a square milling insert engineered for high-performance machining of aluminium and other non‑ferrous metals, providing clean cuts and reliable chip control in series setups.

• High-performance WAK15 uncoated carbide
• Optimised for aluminium and non‑ferrous metals
• Square 90° insert with 11° clearance
• Compatible with Walter N-series holders

Consistent high throughput for non‑ferrous machining

The uncoated WAK15 grade, developed within the Walter N‑Sortensystem, is designed specifically for aluminium and similar materials; the composition and sharp edge geometry reduce material adhesion and support stable chip formation. For machining shops that prioritise cycle time, the combination of a very sharp cutting edge and a carbide substrate that resists premature edge breakdown delivers longer effective tool life in many non‑ferrous applications. The result is fewer tool changes, less machine downtime and a smoother production flow when used with appropriate clamping systems.

Reliable geometry and secure positioning for predictable results

The square 90° form combined with an 11° clearance angle produces a robust edge that allows for shoulder milling and face work with consistent results. Because the insert is available in the Walter N‑series format, it is intended to be used with indexable toolholders from that system, ensuring accurate seating and repeatable positioning. This predictable mechanical interface means setting times are reduced and process stability is improved; shops can expect more consistent surface finish and repeatability across batches without complex fixture changes.

Practical machining advice and application benefits

This grade is uncoated carbide, a deliberate choice for non‑ferrous machining where coatings can promote material build‑up. For best performance, moderate feed rates and cutting speeds adapted to the workpiece aluminium alloy are recommended, together with appropriate cooling or high‑pressure air blow to evacuate chips. When integrated into a controlled process, the indexable solution enables economical production runs and simplified inventory compared with solid cutters. The insert’s profile supports both roughing and semi‑finishing passes, offering a pragmatic balance between material removal rate and surface quality.

The Walter brand is recognised for precision tooling and the N‑series provides an established platform for straightforward tool selection and holder compatibility. Protected trademarks and product names referenced are the property of their respective owners; they are used here for explanation only and do not imply any affiliation.

Contact Metav Werkzeuge to confirm suitability for specific aluminium alloys or to order matching Walter N‑series toolholders — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: SPMT1204AEN-WAK15-WALTER
• Designation: SPMT1204AEN WAK15
• Manufacturer: Walter Tools
• Type: milling indexable insert
• Series: Walter N-Sortensystem

Facts

• Plate size: 12
• Thickness code: 04
• Clearance angle: 11°
• Geometry: Square 90°
• Grade: WAK15
• Tolerance class: M

Special features

• Uncoated carbide grade optimised for aluminium and non‑ferrous metals
• Sharp edge geometry for reduced built‑up edge
• Stable chip formation for efficient material removal
• Compatible with Walter N‑series holders and systems

FAQ

What materials is this insert intended for?
The SPMT1204AEN WAK15 milling insert by Walter Tools is intended for aluminium and other non‑ferrous metals, as specified by the WAK15 grade and the Walter N‑series design.

Is the insert coated or uncoated?
This insert uses an uncoated carbide grade (WAK15), chosen to minimise adhesion when machining aluminium alloys.

Which toolholders are compatible with this insert?
The insert is designed for holders in the Walter N‑Sortensystem; holders that accept SPMT‑format square 90° inserts will be compatible.

What advantages does the square 90° geometry offer?
Square 90° geometry provides a robust cutting edge suitable for shoulder milling and face operations, delivering repeatable positioning and good stability during higher material removal rates.

How does the 11° clearance angle affect performance?
An 11° clearance angle reduces rubbing on the workpiece and supports cleaner cutting action, which helps avoid heat build‑up and improves surface finish when machining aluminium.

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