SPGT1204EDR-F55 WAK15 Wendeplatten - Walter Tools

Take advantage of the WAK15 uncoated carbide grade, the F55 chipbreaker and the 11° relief angle to achieve reliable, high-speed milling of aluminium components. Order the insert directly via Metav Werkzeuge or consult the Metav team for application advice and cutting-parameter support.

SPGT1204EDR-F55 WAK15 indexable milling insert — for aluminium — Walter Tools

SPGT1204EDR-F55 WAK15 is an indexable milling insert designed for efficient machining of aluminium and other non‑ferrous metals in the Walter N-series.

• Uncoated carbide grade WAK15
• Optimised F55 chipbreaker
• 11° relief angle for smooth cuts
• Square 90° form, size 12

Increased productivity when machining aluminium

The combination of the WAK15 uncoated carbide grade and the F55 chipbreaker is optimised for non‑ferrous materials, notably aluminium. This insert delivers sharp cutting edges and a low tendency for material adhesion, which reduces built‑up edge and the need for frequent tool changes. In practice, that translates into longer uninterrupted cutting cycles and more consistent surface finish on workpieces produced in series. The engineering behind the geometry focuses on chip control and minimal cutting forces, enabling higher feed rates under stable conditions.

Geometry that stabilises the process and improves repeatability

A 11° relief angle and a square 90° shape provide a predictable engagement with the workpiece and help maintain a stable cutting line. The relief angle reduces rubbing at the flank face and supports clean shearing of soft metals, while the square form gives a rigid seating for axial and radial loads. The insert’s tolerance class G ensures interchangeability and reproducible positioning in toolholders, which benefits setups where repeatable dimensions and short changeover times are required. For users unfamiliar with relief angles: a higher relief helps avoid unwanted contact behind the cutting edge, improving tool life and part quality.

Practical specification and application guidance

Marked as part of the Walter N‑series, the insert carries a compact code set: designation SPGT1204EDR‑F55, grade WAK15, and thickness code 04 with insert size 12. The uncoated cemented carbide construction means there is no additional coating layer; this supports sharp edges needed for aluminium machining and prevents excessive heat build‑up on softer metals. The insert is particularly suited to conventional and high‑feed milling of aluminium and other non‑ferrous alloys per the ISO material group N, where prevention of material adhesion and superior chip evacuation are essential. For parameter recommendations or holder compatibility within the Walter N‑system, Metav Werkzeuge can supply cutting data and toolholder suggestions.

For application-specific recommendations or to secure matching toolholders and cutting data, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 — the Metav team will advise on optimal use of Walter Tools inserts in production environments.

Technical data

• SKU: SPGT1204EDR-F55-WAK15-WALTER
• Article number: SPGT1204EDR-F55
• Type: Indexable milling insert
• Grade: WAK15
• Series: Walter N-series
• Manufacturer: Walter Tools

Facts

• Relief angle: 11°
• Insert shape: Square 90°
• Insert size: 12
• Thickness code: 04
• Chipbreaker: F55
• Tolerance class: G

Special features

• Material group: N (non‑ferrous metals, e.g. aluminium, copper, mess­ing)
• Coating: uncoated (cemented carbide)
• Application focus: aluminium and NE‑metals
• Execution: T (as specified in data)

FAQ

What materials is this insert best suited for?
The SPGT1204EDR‑F55 WAK15 insert from Walter Tools is optimised for aluminium and other non‑ferrous metals (ISO group N), providing excellent chip control and low adhesion.

How does the F55 chipbreaker affect milling performance?
The F55 chipbreaker promotes controlled chip formation for non‑ferrous metals, improving evacuation and reducing re‑attachment to the cutting edge, which enhances surface quality and tool life with the WAK15 grade.

What does the 11° relief angle mean for machining?
An 11° relief angle reduces flank contact and rubbing behind the cutting edge, which helps maintain a sharp edge and stable cutting when milling softer alloys; this contributes to smoother feeds and lower cutting forces.

Is this insert compatible with Walter N‑series toolholders?
Yes — the insert is designated for the Walter N‑series and is intended for use in compatible toolholders designed for square 90° indexable inserts; check holder specifications for seat and clamp compatibility.

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

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is a globally recognised manufacturer of precision tools for metalworking and part of the Swedish Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names and protected designations are mentioned for explanatory purposes only; there is no affiliation between our company and the named brands. The offered item is an original, factory‑new product of the manufacturer.