SNEF1204PNN-A27 WAK15 Wendeplatten - Walter Tools

Reliable machining of aluminium is achieved through the combination of the WAK15 uncoated carbide grade, the A27 chipbreaker and the 0° negative rake geometry; these features support consistent chip control and a stable cutting edge. Order the SNEF1204PNN-A27 WAK15 directly via Metav Werkzeuge or consult our advisers for application support.

SNEF1204PNN-A27 WAK15 indexable milling insert — square 90°, uncoated carbide for aluminium

The SNEF1204PNN-A27 WAK15 is a square 90° indexable milling insert engineered for efficient machining of aluminium and other non-ferrous metals, designed to fit the Walter N-series tool family and to provide controlled chip formation under high-feed conditions.

• WAK15 uncoated carbide for aluminium
• Square 90° geometry for stable cutting
• 0° negative rake for secure edge support
• A27 chipbreaker reduces built-up edge

Consistent aluminium performance and chip control

The insert delivers predictable cutting behaviour by combining a sharp, uncoated carbide grade with a dedicated A27 chipbreaker. This configuration is optimised for aluminium and other non-ferrous metals, reducing the risk of material adhesion and minimising the need for secondary cleaning. The chipbreaker promotes short, controllable chips that improve tool life and protect the workpiece finish, which makes the insert suitable for both roughing and semi-finishing passes where stable material removal is required.

Edge stability and secure cutting under load

With a 0° negative rake and square 90° form, the geometry provides enhanced support to the cutting edge, reducing the likelihood of chipping during interrupted cuts or at high feed rates. The combination of edge support and the insert’s tolerance class E ensures repeatable performance in serial production. For shops aiming to maintain productivity while lowering scrap rates, this geometry offers a reliable balance between cutting force absorption and surface integrity.

System compatibility and handling advantages

Designed for the Walter N-system, the insert integrates seamlessly into Walter Tools toolholders and clamping systems, simplifying tool inventory and changeovers. The square outline enables four usable cutting edges per insert, improving cost efficiency per edge. Given the insert’s focus on non-ferrous alloys, the material and geometry reduce built-up edge and sticking, which lowers the frequency of tool changes and supports uninterrupted machining cycles.

Practical application and process guidance

This grade is specifically intended for machining aluminium and similar materials; it is not designed for hardened steels or stainless applications. When positioned in stable toolholders and used with suitable feeds and speeds for non-ferrous alloys, the insert delivers smooth chip flow and an improved surface finish. For tailored recommendations on cutting parameters or to confirm suitability for a particular alloy or process, technical consultation is available to help integrate the insert into existing workflows.

Contact Metav Werkzeuge for application advice on Walter Tools inserts and for direct ordering support — expert guidance is available by phone or e-mail to match the insert to the machining task.

Technical Data

• Article number: SNEF1204PNN-A27-WAK15-WALTER
• Name: SNEF1204PNN-A27 WAK15
• Brand: Walter Tools

Core data

• Size: 12
• Thickness: 04
• Free cutting angle: 0° (negativ)
• Plate form: Quadrat 90°
• Chipbreaker: A27
• Tolerance class: E

Special features

• Grade: WAK15
• Series: Walter N-System
• Uncoated carbide
• For aluminium and non-ferrous metals
• Designed for controlled chip formation

FAQ

Is this insert suitable for machining aluminium alloys?
Yes. The SNEF1204PNN-A27 WAK15 insert is specifically graded and geometrically configured for aluminium and other non-ferrous metals, offering good chip control and reduced material adhesion.

Can the insert be used for steel or stainless steel?
No. The WAK15 grade is an uncoated carbide optimised for non-ferrous applications and is not intended for stainless steel or hardened steel machining.

How many cutting edges are available per insert?
The square 90° form provides up to four indexable cutting edges per insert, improving cost-efficiency for serial operations.

What is the purpose of the A27 chipbreaker?
The A27 chipbreaker promotes short, controllable chips in aluminium machining, reducing built-up edge and supporting consistent surface quality.

Is this insert compatible with Walter N-system toolholders?
Yes. The insert is part of the Walter N-series and is designed for direct compatibility with corresponding Walter toolholders.

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

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