ZDGT20A520R-K85 WMG40 WMG40 Wendeplatten - Walter Tools

Taking advantage of the combination of stable chip control, robust edge life and consistent dimensional tolerance ensures reliable machining and predictable tool performance; order the ZDGT20A520R-K85 WMG40 milling insert directly via Metav Werkzeuge or consult the product specialists for application-specific advice

ZDGT20A520R-K85 WMG40 milling insert by Walter Tools — coated carbide grade with K85 chipbreaker

The ZDGT20A520R-K85 WMG40 is a coated carbide indexable milling insert intended for general milling tasks where consistent chip formation and durable cutting edges are required

• Coated carbide grade WMG40
• 15° relief angle for low cutting forces
• 2 mm corner radius for durable edges
• K85 chipbreaker for stable chip control

Productive cutting with controlled chip formation

The coated carbide grade WMG40 is formulated for reliable performance across common milling applications, combining wear resistance with predictable flank behaviour. The K85 chipbreaker is engineered to promote stable chip control, which reduces the risk of entanglement and supports continuous material evacuation in medium to heavy cutting conditions. Thanks to the 15° relief, cutting forces are moderated, resulting in smoother engagement and reduced spindle load. These attributes translate into measurable process advantages: fewer interruptions, consistent component quality and improved machine utilisation. For materials suitability, the product matrix should be consulted to match the grade to the workpiece material.

Durable geometry for repeatable accuracy

The insert’s 2 mm corner radius and tolerance class G are core contributors to long-term dimensional stability during series production. A larger nose radius improves corner strength and edge life, particularly when offsetting slightly increased cutting loads, while the defined tolerance class supports interchangeability and consistent placement in clamping systems. The thickness designation A5 indicates the robust plate body that resists deformation under cutting stress. Together, these geometric features help maintain surface finish and positional accuracy across repeated tool changes and re-indexing, making the insert suitable for workflows that prioritise repeatable results.

Simple integration into milling operations

Designed as an indexable milling plate with a nominal size of 20 mm, this insert fits typical milling setups where standardised insert geometries are used. The series information — Walter Schneidstoffsorte - Serie offen — and the execution code T identify the manufacturing variant and assist in selecting the correct counterpart in tool assemblies. The ISO designation ZDGT20A520R-K85 WMG40 enables clear ordering and inventory control. While the insert is engineered for broad applicability, checking holder compatibility and cutting data against the workpiece and machine capability is recommended to achieve the best balance of material removal rate and tool life.

For precise selection and application support of Walter Tools milling inserts, contact Metav Werkzeuge for tailored recommendations and prompt supply via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: ZDGT20A520R-K85-WMG40-WALTER
• Label: Fräswendeschneidplatte ZDGT20A520R-K85 WMG40 Walter Tools
• Manufacturer: Walter Tools
• Type: milling insert
• ISO designation: ZDGT20A520R-K85 WMG40
• Grade: WMG40
• Series: Walter Schneidstoffsorte - Serie offen

Facts

• Relief angle: 15°
• Corner radius: 2 mm
• Plate size: 20 mm
• Thickness: A5
• Tolerance class: G

Special features

• Chipbreaker: K85
• Coating / material: coated carbide (check catalogue)
• Execution: T
• Product note: Check material suitability according to the product matrix
• UID / SKU: ZDGT20A520R-K85-WMG40-WALTER

FAQ

What materials is this insert suitable for? The WMG40 grade is a coated carbide designed for broad application; always verify specific workpiece compatibility with the product matrix for the ZDGT20A520R-K85 WMG40 milling insert.

How does the K85 chipbreaker affect machining? The K85 chipbreaker supports controlled chip formation and evacuation, improving process stability and reducing interruptions during longer machining cycles.

What does the 15° relief angle provide in practice? A 15° relief reduces cutting forces and helps smoother engagement, which can extend edge life and lower machine load under comparable cutting conditions.

Is the geometry suitable for series production? Yes—the combination of a 2 mm corner radius and tolerance class G provides robust edge strength and dimensional consistency for repeatable results.

How should the insert be specified when ordering? Order by the ISO designation ZDGT20A520R-K85 WMG40 and the SKU ZDGT20A520R-K85-WMG40-WALTER to ensure correct grade and chipbreaker selection.

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

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 manufacturers. The offered item is original, brand-new goods supplied by the manufacturer. The brand in this listing is Walter Tools.