SPMT120606-D57 WKP25S Wendeplatten - Walter Tools

Taking advantage of stable edge life, proven Tiger·tec Silver coating and a geometry optimised for reliable chip control ensures productive machining of steel and cast iron; order originals via Metav Werkzeuge or request application advice from their consultants.

SPMT120606-D57 WKP25S — Walter Tools milling insert, coated carbide for steel & cast iron

SPMT120606-D57 WKP25S is a square milling indexable insert designed for productive machining of steels and cast irons, featuring a D57 chipbreaker and Tiger·tec Silver coating.

Coated carbide Tiger·tec Silver for long life
Square 90° geometry for robust milling
11° relief angle for secure cutting engagement
Designed for steel and cast iron applications

High-performance coating and consistent cutting results

The Tiger·tec Silver coating combined with the WKP25S grade delivers a balance of wear resistance and thermal stability that supports repeatable performance in demanding production runs. As a coated carbide insert, it is tailored to manage the heat and typical chip formation during the machining of steel and cast iron, reducing flank wear and extending effective edge life. This results in fewer tool changes and improved machine uptime, which helps to keep cycle times predictable in serial and jobbing production.

Geometry that stabilises chip formation and surface finish

The insert’s square 90° form and the integrated D57 chipbreaker are configured to produce controlled, short chips when cutting cast iron and stable continuous chips in many steels. The combination of form and chip control improves surface integrity and reduces the risk of chip-related interruptions. With a corner radius of 0.6 and 11° relief angle, the geometry supports secure cutting engagement and a reliable edge for both moderate and heavier cutting parameters, providing a compromise between strength at the cutting edge and the ability to achieve good surface quality.

Robustness and process security for production environments

Tolerance class M and the systematic build of this insert support repeatable seating and indexing in standard toolholders, which simplifies set-up and reduces inspection time between indexings. The grade’s formulation addresses abrasive wear commonly encountered with castings while maintaining a tough cutting edge for steels, enabling stable tool life across mixed production batches. The result is reduced variability in component output and improved predictability of tool consumption.

Practical application notes and compatibility

Intended for ISO groups P (steel) and K (cast iron), this insert suits roughing and medium-finishing passes depending on machine rigidity and cutter design. The designation SPMT120606-D57 WKP25S identifies the geometry and chipbreaker combination for quick matching with compatible cutter bodies. For best results, match cutting data to machine capability and workpiece material; moderate feeds with appropriate depth of cut will exploit the coating and chipbreaker design, delivering efficient material removal and extended edge life.

Contact Metav Werkzeuge for tailored cutting data, availability of original Walter Tools Tiger·tec Silver inserts and expert application support by phone or e‑mail

Technical data

• Article number: SPMT120606-D57-WKP25S-WALTER
• Designation: SPMT120606-D57 WKP25S
• Series: Tiger-tec Silver
• Grade: WKP25S
• Material group: P / K

Facts

• Size: 12
• Thickness: 06
• Corner radius: 0.6
• Relief angle: 11°
• Tolerance class: M

Special features

• Coated carbide (Tiger·tec Silver)
• Square 90° plate form
• D57 chipbreaker
• Suitable for steel and cast iron

FAQ

What materials is this insert best suited for?
The insert is intended for ISO groups P and K, so it is suitable for machining steel and cast iron; the WKP25S grade and Tiger·tec Silver coating help control wear and chip formation on these materials.

What does the D57 chipbreaker do?
The D57 chipbreaker produces short, manageable chips in cast iron and stabilised chips in many steels, which aids process reliability and reduces downtime due to chip handling.

How does the Tiger·tec Silver coating benefit production?
The Tiger·tec Silver coating improves thermal resistance and wear behaviour, supporting longer edge life and consistent cutting results across batch production.

Is the insert compatible with standard cutter bodies?
The geometry and tolerance class M are designed for reliable seating in compatible toolholders; the designation SPMT120606 indicates the form to match standard milling cutter bodies.

How should cutting parameters be chosen for best life?
Select feeds and depths of cut according to machine rigidity and workpiece material; moderate parameters exploit the coating and chipbreaker for efficient removal and extended tool life.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

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