ZDGT20A540R-K85 WMG40 WMG40 Wendeplatten - Walter Tools

Combining the WMG40 coated carbide with the K85 chipbreaker and a 15° relief angle results in a milling insert that balances reliable chip control with consistent edge life; order the ZDGT20A540R-K85 via Metav Werkzeuge or consult our specialists for application-specific advice.

ZDGT20A540R-K85 WMG40 indexable milling insert — 15° relief, K85 chipbreaker — Walter Tools

The ZDGT20A540R-K85 WMG40 is an indexable milling insert intended for general high-productivity milling operations where controlled chip formation and consistent cutting performance are required.

• 15° relief angle for stable cutting
• 4 mm corner radius for edge strength
• K85 chipbreaker for controlled chips
• WMG40 coated carbide grade

High-output milling through engineered chip control

The combination of a K85 chipbreaker and a WMG40 coated carbide grade is designed to improve machining stability and reduce interruptions due to poor chip evacuation. The chipbreaker geometry promotes predictable chip segmentation, which lowers the risk of recutting and tool damage during medium to high material removal rates. The 15° relief angle contributes to a reduced cutting force and helps maintain a steady engagement with the workpiece, so production cycles run more reliably and tool changes can be planned rather than improvised.

Precision, edge security and surface quality

A 4 mm corner radius increases edge robustness and distributes cutting stresses over a larger area, which supports longer edge life and more consistent surface finish in finishing and semi-finishing passes. The insert’s tolerance class G ensures repeatable positioning within the toolholder pocket, helping to maintain dimensional accuracy across a batch. The plate thickness code A5 and the standardised ISO designation facilitate correct seating and replacement, reducing set-up time and avoiding costly mismatches during changeovers.

Practical use and material considerations for reliable machining

This insert is delivered in the ZDGT20A540R-K85 format and belongs to the Walter Schneidstoffsorte — Serie offen. Material designation is catalogue-dependent, so suitability for specific substrates should be verified against the manufacturer matrix before cutting. The insert’s geometry and coated-carbide grade make it well suited to general milling tasks where consistent chip control and long tool life are priorities. For tailored recommendations on feeds, speeds and toolholder selection, request the technical data sheet or task-specific guidance.

For application-specific selection or to order Walter Tools inserts such as the ZDGT20A540R-K85 WMG40, contact Metav Werkzeuge for expert advice and prompt supply: info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: ZDGT20A540R-K85-WMG40-WALTER
• Label: Fräswendeschneidplatte ZDGT20A540R-K85 WMG40 Walter Tools
• Manufacturer: Walter Tools
• ISO designation: ZDGT20A540R-K85 WMG40
• Designation without grade: ZDGT20A540R-K85

Facts

• Relief angle: 15°
• Corner radius: 4 mm
• Plate size: 20 mm
• Thickness: A5
• Tolerance class: G

Special features

• Chipbreaker: K85
• Grade: WMG40 (coated carbide)
• Series: Walter Schneidstoffsorte - Serie offen
• Execution: T
• Material: Catalogue-dependent

FAQ

What machining tasks is this insert suitable for?
The ZDGT20A540R-K85 WMG40 insert is intended for general milling operations where controlled chip formation and steady cutting performance are required.

What benefit does the K85 chipbreaker provide?
The K85 chipbreaker on the ZDGT20A540R-K85 promotes predictable chip segmentation and improved chip evacuation, reducing recutting and the risk of tool damage.

How does the 4 mm corner radius affect performance?
A 4 mm corner radius increases edge strength and distributes cutting loads, which improves tool life and supports a consistent surface finish during finishing and semi-finishing passes.

What does the WMG40 grade mean in practice?
WMG40 denotes a coated carbide grade used by Walter Tools that aims to provide a balance between wear resistance and toughness; compatibility with specific materials should be checked against the product matrix.

How is the insert identified for reordering?
Reorder using the ISO designation ZDGT20A540R-K85 WMG40 or the article number ZDGT20A540R-K85-WMG40-WALTER to ensure the correct grade and chipbreaker are supplied.

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

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