SNGX120512-F57 WKP25S Wendeplatten - Walter Tools

Benefit from the combination of a Tiger‑tec Silver coating and the WKP25S grade for consistently productive machining of steel and cast iron; the negative 0° rake and 1.2 mm corner radius deliver stable cutting performance and good edge life. Order this milling insert via Metav Werkzeuge or consult the technical advisors for application-specific guidance.

SNGX120512-F57 WKP25S — milling indexable insert (square 90°) by Walter Tools, for steel and cast iron

SNGX120512-F57 WKP25S is a square 90° milling insert designed for productive machining of steel and cast iron, featuring a Tiger‑tec Silver coating and an F57 chipbreaker for controlled chip formation.

• Square 90° geometry for stable milling
• Tiger‑tec Silver coating for wear resistance
• WKP25S grade for steel and cast iron
• Negative 0° rake for robust cutting

Improved productivity through a coated grade optimised for steel and cast iron

The coated carbide grade from the Tiger‑tec Silver family offers a balanced combination of wear resistance and toughness, making the insert particularly suitable for mixed-series production where materials vary between steel and cast iron. The WKP25S grade is tailored to manage the typical heat and chip behaviour of these workpiece groups, which reduces unscheduled tool changes and contributes to higher machine uptime. The coated surface also supports consistent edge stability during interrupted cuts and medium to heavy milling operations.

Robust geometry and chip control for reliable machining results

The square 90° form and F57 chipbreaker deliver repeatable chip shaping and effective evacuation, which reduces the risk of built-up edge and improves surface condition on the workpiece. The negative 0° rake provides a stronger cutting edge and higher cutting-edge support, making the insert a sound choice for tougher cutting conditions and shoulder milling. Together, these features enable more predictable process behaviour and help maintain dimensional consistency across batches.

Practical benefits for workshop efficiency and tool life

A 1.2 mm corner radius extends the effective life of the cutting edge under heavier load cycles, while the insert’s coating and grade combat abrasive wear typical of cast components. This combination yields a favourable cost-per-part ratio and simplifies tool inventory by allowing one geometry to cover a range of standard steel and cast-iron tasks. The insert’s construction supports quick index changes and predictable replacement intervals, aiding production planning and reducing downtime.

Process security and selection advice for integrators and buyers

For integration into existing tool systems, the insert’s designation and series facilitate straightforward comparison with equivalent items in supplier catalogues. The SNGX120512-F57 WKP25S insert works well where process stability and surface quality are priorities; the grade’s balance of toughness and coating performance supports repeatable results in both conventional and CNC milling environments. For geometry or clamping compatibility, check the toolholder specification against the SNGX120512-F57 ISO designation.

Contact Metav Werkzeuge GmbH for application advice or to request a quotation for the SNGX120512-F57 WKP25S milling insert; eMail: info@metav-werkzeuge.com, Tel: +49 2822 7131930

Technical Data

• Article number: SNGX120512-F57-WKP25S-WALTER
• Designation: SNGX120512-F57 WKP25S
• Manufacturer: Walter Tools

Facts

• Size: 12 mm
• Corner radius: 1.2 mm
• Thickness: 0.5 mm
• Rake angle: 0° (negative)
• Tolerance class: G

Special features

• Series: Tiger‑tec Silver
• Grade: WKP25S (coated carbide)
• Chipbreaker: F57
• Plate form: square 90°
• Suitable for: steel (P) and cast iron (K)
• Execution/variant: X

FAQ

What materials is this insert suited for?
The SNGX120512-F57 WKP25S insert is specified for machining steel (P) and cast iron (K), benefiting from the Tiger‑tec Silver coating and WKP25S grade for those groups.

How does the F57 chipbreaker affect machining?
The F57 chipbreaker on this insert promotes controlled chip formation and evacuation, reducing built‑up edge and supporting improved surface quality when milling steel and cast iron.

Is the insert positive or negative rake and what is the advantage?
This insert has a negative 0° rake, which strengthens the cutting edge and is advantageous for robust cutting conditions and interrupted cuts.

What does the 1.2 mm corner radius mean for tool life?
A 1.2 mm corner radius increases edge strength under load, extending effective tool life and enhancing process reliability during heavier milling operations.

How to identify the insert for ordering and toolholder matching?
Use the ISO designation SNGX120512-F57 WKP25S or the article number SNGX120512-F57-WKP25S-WALTER to ensure correct geometry and grade selection.

Manufacturer: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

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