SNEX1204PNN-A27 WAK15 Wendeplatten - Walter Tools

Take advantage of a sharp, uncoated cemented carbide grade and a purpose-built A27 chipbreaker to achieve reliable chip control and superior surface quality in aluminium machining; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

SNEX1204PNN-A27 WAK15 square 90° milling insert by Walter Tools — uncoated carbide for aluminium and non-ferrous metals, 0° negative rake

The SNEX1204PNN-A27 WAK15 is a square 90° indexable milling insert engineered for efficient machining of aluminium and other non-ferrous materials, combining a sharp geometry with a dedicated chipbreaker for stable cutting action

• Uncoated cemented carbide WAK15 grade
• Optimised A27 chipbreaker for aluminium
• Square 90° form with 0° negative rake
• Suitable for aluminium and non-ferrous metals

Faster, cleaner machining with an uncoated WAK15 grade

The insert is made from uncoated cemented carbide in the WAK15 grade, a composition prioritised for machining non-ferrous metals. This material choice delivers a very sharp cutting edge and reduced tendency for built-up edge when cutting softer alloys, which in turn supports longer uninterrupted production runs and consistent part quality. Being uncoated can be an advantage in aluminium applications because it minimises frictional heating caused by incompatible coatings, helping to preserve edge sharpness and reduce surface smearing on the workpiece.

Reliable chip control and geometry designed for aluminium

The combination of the A27 chipbreaker and the square 90° insert form provides predictable chip formation and evacuation during light to medium milling operations. The chipbreaker is tailored to produce short, controllable chips in aluminium and similar materials, improving surface finish and reducing tool interference. The 0° negative rake contributes to a stable cutting edge and helps to withstand occasional interrupted cuts or varying feed conditions without accelerating edge wear, making the geometry well suited to industrial milling of non-ferrous components.

Practical fitment and workshop benefits

The insert’s designation corresponds to standard indexable systems and its dimensions make it a straightforward replacement in compatible milling holders. The SNEX1204PNN-A27 WAK15 fits Walter’s N-series system and is a cost-effective choice for shops machining aluminium components where chip control and surface integrity are priorities. Stock-ready supply via Metav Werkzeuge ensures rapid procurement, and technical consultation is available for selecting the correct holder, speeds and feeds to match the alloy and operation, reducing setup time and process variation.

For reliable aluminium milling with Walter Tools performance, contact Metav Werkzeuge for technical guidance and stock information at info@metav-werkzeuge.com or call +49 2822 7131930 — our team will advise on the best integration of this insert into existing tool programmes.

Technical data

• Article number: SNEX1204PNN-A27-WAK15-WALTER
• Designation: SNEX1204PNN-A27 WAK15
• Manufacturer: Walter Tools
• Type: Indexable milling insert
• Grade: WAK15

Numbers / Core technical data

• Insert form: Square 90°
• Insert size: 12
• Thickness code: 04
• Rake angle: 0° (negative)
• Tolerance class: E

Designs / Special features

• Uncoated cemented carbide grade WAK15
• A27 chipbreaker geometry
• Walter N-series compatibility
• Intended application: Aluminium and non-ferrous metals
• Execution: X (negative geometry)

FAQ

What materials is this insert best suited for?
The SNEX1204PNN-A27 WAK15 insert is optimised for aluminium and other non-ferrous metals, using a sharp uncoated carbide grade and an A27 chipbreaker for controlled chip formation.

Is this insert compatible with Walter N-series toolholders?
Yes, the insert matches the Walter N-series system and is intended for use in holders that accept the SNEX1204PNN-A27 designation.

What advantages does the A27 chipbreaker provide?
The A27 chipbreaker on this insert helps produce short, manageable chips in aluminium machining, improving surface finish and reducing the risk of chip entanglement.

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

The Walter AG (brand: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and part of the Sandvik group. Protected trademarks and trade names are the property of their respective owners. Mention of brand names is for explanatory purposes only. The offered item is an original, factory-new product of the manufacturer.