BCGT120408R-B85 WDN20 WDN20 Wendeplatten - Walter Tools

Take advantage of the PKD wear resistance, the controlled chip formation from the B85 chipbreaker and the precise 0.8 mm corner geometry for consistent, high‑quality machining of abrasive non‑ferrous materials; order directly via Metav Werkzeuge or consult our application specialists for process optimisation.

BCGT120408R-B85 WDN20 — Indexable milling insert, PKD grade, chipbreaker B85 (Walter Tools)

The BCGT120408R-B85 WDN20 is an indexable milling insert engineered for precision machining of non‑ferrous and abrasive non‑ferrous materials, combining a PKD cutting grade with a parallelogram 75° form for stable, repeatable cuts.

• PKD grade (WDN20) for abrasive non‑ferrous materials
• Parallelogram 75° form for stable milling
• Chipbreaker B85 for controlled chip formation
• 0.8 mm corner radius for fine contour finishing

Consistent edge life and material suitability for abrasive non‑ferrous work

The insert is built around the WDN20 PKD grade, which delivers exceptional wear resistance when machining abrasive non‑ferrous materials such as certain aluminium alloys, cast non‑ferrous parts and composites. The use of polycrystalline diamond as the cutting material reduces flank wear and extends tool life under abrasive conditions, leading to fewer indexings and longer uninterrupted production runs. With a 0.8 mm corner radius and a 7° clearance angle, the geometry supports clean engagement and reduces the risk of built‑up edge, making the component particularly suitable where dimensional stability and surface integrity are priorities.

Improved productivity through stable geometry and chip control

The Parallelogram 75° insert shape and dedicated B85 chipbreaker work together to create a controlled chip flow and consistent cutting forces, which contributes to process reliability and surface finish. The insert’s form helps maintain stable cutting when used in peripheral and face milling operations, while the chipbreaker promotes predictable breakage for automated chip evacuation. The result is reduced cycle times and less downtime for chip clearing, translating into measurable productivity gains for batch production and serial machining applications.

Practical application guidance and toolholder compatibility

This indexable insert is designed for straightforward integration into standard milling toolholders that accept the BCGT style. The WDN20 designation signals the PKD technology and its intended application domain; nevertheless, suitability should always be verified against the specific workpiece and process matrix. For fine finishing or profiling tasks the 0.8 mm corner radius offers a good balance between edge strength and attainable surface quality. For roughing of highly abrasive, non‑ferrous components the same PKD grade maintains abrasion resistance, reducing the frequency of tool changes and maintaining process stability.

Discuss Walter Tools' PKD insert options with Metav Werkzeuge for tailored recommendations and order support — eMail info@metav-werkzeuge.com or call +49 2822 7131930 for application advice and availability

Technical data

• Article number: BCGT120408R-B85-WDN20-WALTER
• Designation: BCGT120408R-B85 WDN20
• Product type: Indexable milling insert

Facts

• Free angle: 7°
• Corner radius: 0.8 mm
• Insert size: 12
• Plate thickness designation: 04
• Shape: Parallelogram 75°
• Tolerance class: G

Special features

• Chipbreaker: B85
• Grade: WDN20 (PKD, polycrystalline diamond)
• Series: Walter open-grade series
• Execution: T
• Materials application: suitable for non‑ferrous and abrasive non‑ferrous materials (verify product matrix)

FAQ

Is this insert suitable for aluminium alloys and similar non‑ferrous materials?
The BCGT120408R-B85 WDN20 insert uses a PKD (WDN20) grade optimised for abrasive non‑ferrous materials and is suitable for many aluminium alloys and similar workpieces, subject to verification against the product matrix.

Can the insert be used for steel machining?
PKD grades such as WDN20 are generally not recommended for ferrous steels; the insert is intended for non‑ferrous and abrasive non‑ferrous applications rather than conventional steel machining.

What role does the B85 chipbreaker play in performance?
The B85 chipbreaker provides controlled chip formation and evacuation, which supports stable cutting forces and improves surface finish in continuous milling operations.

How does the 75° parallelogram shape affect cutting?
The Parallelogram 75° geometry enhances tool rigidity and offers a predictable cutting orientation, helping to maintain dimensional accuracy and reduce chatter in peripheral and face milling.

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

Trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned solely for explanatory purposes. There is no connection between our company and the named brands. The offered article is original factory‑new goods of the manufacturer.