SDGW120408 WDN20 W DN20 Wendeplatten - Walter Tools

Take advantage of the combination of PKD wear resistance, stable chip control and a compact 12 mm size for high throughput in abrasive non‑ferrous machining; order the SDGW120408-A88 WDN20 milling indexable insert via Metav Werkzeuge or consult their specialists for application-specific advice

SDGW120408-A88 WDN20 milling indexable insert – PKD for abrasive non‑ferrous materials (Walter Tools)

A SDGW120408-A88 WDN20 milling indexable insert designed for high wear resistance in non‑ferrous and abrasive, non‑ferrous workpieces

• PKD grade WDN20 for abrasive non‑ferrous materials
• Square 90° form with 0.8 mm corner radius
• 15° clearance angle for secure cutting geometry
• A88 chipbreaker for controlled chip evacuation

Maximise uptime through extreme wear resistance

The use of PKD (polycrystalline diamond) in the WDN20 grade provides markedly superior wear resistance, which translates into longer in‑service life for the insert and fewer tool changes in serial production. For machining abrasive, non‑ferrous materials the hard diamond cutting layer minimises flank wear and abrasion, maintaining the cutting edge over extended cycles. The economic effect is a higher output per insert and more predictable tool life, which supports stable production planning and reduces downtime in milling operations.

Reliable finishes and consistent chip evacuation

The insert’s A88 chipbreaker combined with a 0.8 mm corner radius and a square 90° form produces a repeatable cutting geometry that helps deliver consistent surface quality. The 15° clearance angle reduces rubbing while maintaining contact stability, which improves dimensional consistency and reduces the need for secondary finishing. Controlled chip formation results in easier chip management at higher feed rates, supporting both accuracy and process security in demanding applications.

Simple specification and integration into tool programmes

Available in a nominal 12 mm size with a 4 mm thickness, the insert fits compact milling setups where space and repeatability are priorities. The item is produced under Walter Tools’ open series for this cutting material and carries tolerance class G, which helps when standardised indexing and repeatable seating are required. Material suitability should be verified against the manufacturer’s product matrix before application; the grade is primarily intended for non‑ferrous and abrasive non‑ferrous materials, where PKD offers clear advantages over carbide alternatives.

Contact Metav Werkzeuge for application guidance and availability of the Walter Tools PKD insert; Metav Werkzeuge can advise on suitable grades, recommended cutting data and delivery options

Technical data

• Article number: SDGW120408-A88-WDN20-WALTER
• Designation: SDGW120408-A88 WDN20
• Product type: Milling indexable insert
• Manufacturer: Walter Tools

Facts

• Clearance angle: 15°
• Corner radius: 0.8 mm
• Insert size: 12 mm
• Thickness: 4 mm
• Corner angle: 90°
• Tolerance class: G

Special features

• Cutting material: PKD (polycrystalline diamond) WDN20
• Chipbreaker: A88
• Series: Walter Schneidstoffsorte - Serie offen
• Execution: W
• Material specification: Katalogabhängig

FAQ

What materials is this insert intended for?
The SDGW120408-A88 WDN20 insert is intended for non‑ferrous and abrasive, non‑ferrous materials where PKD performance is required; suitability should be checked in the product matrix for specific alloys

Can the insert be used for high feed milling?
The combination of A88 chipbreaker and the square 90° geometry allows stable chip control at elevated feeds while maintaining surface consistency with the WDN20 PKD grade

Is this insert regrindable or resharpenable?
PKD inserts such as the SDGW120408-A88 WDN20 are generally not suitable for conventional resharpening; replacement is the recommended approach to preserve process reliability

Which clamping systems accept this insert?
The insert is a standard square 90° format compatible with toolholders designed for SDGW‑style indexable inserts; check holder compatibility and clamping torque with the toolholder manufacturer

How does the corner radius affect the machined component?
A 0.8 mm corner radius provides a balance between edge strength and achievable detail, improving edge life while contributing to a smoother surface finish in interrupted and continuous cuts

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

Protected trademarks and product names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the brands named. The offered item is an original, factory‑new product from the manufacturer.