ADMT120408R-D56 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating and the WKP25S grade for reliable machining of steel and cast iron; the parallelogram 85° geometry and 15° clearance angle ensure stable chip control and consistent edge life. Order the insert directly via Metav Werkzeuge or ask our consultants for application advice.

ADMT120408R-D56 WKP25S milling indexable insert — Walter Tools, Tiger‑tec Silver, for steel and cast iron

The ADMT120408R-D56 WKP25S is a parallelogram 85° milling insert designed for productive roughing and semi‑finishing of steels and cast irons in industrial metalcutting applications.

• Tiger‑tec Silver coating for wear resistance
• WKP25S grade optimised for P and K materials
• Parallelogram 85° for positive cutting engagement
• 15° clearance angle with 0.8 mm corner radius

Robust grade and coating for longer productive life

The insert uses the WKP25S carbide grade within the Tiger‑tec Silver technology, developed to balance wear resistance and toughness. This combination reduces flank wear under typical steel and cast‑iron cutting conditions and supports predictable toolchange intervals. The result is a higher process reliability and lower per‑part machining cost through consistent edge performance. The coated substrate is suited to the thermal and abrasive loads typical for P (steel) and K (cast iron) groups according to ISO classification.

Geometry that stabilises cutting and improves chip control

A parallelogram 85° shape together with a 15° clearance angle produces a favourable cutting‑force vector for slotting and face milling operations; it helps to reduce axial load peaks and promotes steady engagement with the workpiece. The integrated D56 chipbreaker manages chip formation for short, controllable chips on both steel and cast iron, which simplifies chip evacuation and reduces the risk of rework. The 0.8 mm corner radius gives a balanced edge strength that supports heavier cuts while retaining a fine surface finish when needed.

Practical dimensions and application flexibility

The insert is supplied in the ADMT120408R‑D56 geometry, size 12 with a thickness of 4, which fits common toolholders for medium‑duty milling tasks. Its tolerance class M and execution T ensure interchangeability within standard clamping systems and precise seating during index changes. Use of this insert in systematic cutter setups yields repeatable results and makes tool‑path planning more reliable across production batches.

How this insert benefits workshop productivity

By combining a modern coating system, a robust carbide grade and a chipbreaker tuned for mixed applications, the insert shortens set‑up cycles and reduces downtime caused by unpredictable edge failure. The design supports a wider range of cutting parameters, allowing process engineers to increase metal removal rates where machine capability and workholding allow. In practice, this means fewer interruptions for index changes and a smoother production flow.

Discuss Walter Tools Tiger‑tec Silver inserts with Metav Werkzeuge to confirm the best grade and geometry for the specific steel or cast‑iron application and secure optimal cutter performance.

Technical data

• SKU: ADMT120408R-D56-WKP25S-WALTER
• Article: ADMT120408R-D56 WKP25S
• Manufacturer: Walter Tools
• Product type: Milling indexable insert
• Series: Tiger‑tec Silver
• Grade: WKP25S

Facts

• Clearance angle: 15°
• Corner radius: 0.8 mm
• Inscribed circle / size: 12 mm
• Thickness: 4 mm
• Plate angle: 85° (parallelogram)
• Tolerance class: M

Special features

• Chipbreaker: D56
• Coated carbide substrate
• Application groups: Steel (P) and Cast iron (K)
• Execution: T
• Designation: ADMT120408R-D56

FAQ

What materials is this insert intended for?
The ADMT120408R‑D56 WKP25S by Walter Tools is formulated for machining steel (P) and cast iron (K), using the WKP25S grade within the Tiger‑tec Silver range.

How does the D56 chipbreaker affect machining?
The D56 chipbreaker on this Walter Tools insert promotes short, controlled chips for both steel and cast iron, enhancing chip evacuation and reducing the risk of chip entanglement.

What advantages does the Tiger‑tec Silver coating provide?
Tiger‑tec Silver coating on the WKP25S grade improves wear resistance and thermal stability, extending the effective cutting life of the insert under typical industrial cutting conditions.

Is the corner radius suitable for heavier cuts?
The 0.8 mm corner radius offers a good compromise between edge strength and surface finish, supporting heavier roughing cuts while maintaining acceptable finishing capability.

Can this insert be used in standard toolholders?
The ADMT120408R‑D56 geometry and tolerance class M are compatible with common toolholder systems designed for parallelogram 85° inserts.

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

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