SPMW09T308T-A27 WKP25S Wendeplatten - Walter Tools

Benefit from the combination of Tiger‑tec Silver coating and the WKP25S grade for reliable, productive machining; the square 90° geometry with an 11° relief and 0.8 mm corner radius supports stable chip formation and consistent surface finish. Order the SPMW09T308T-A27 WKP25S insert directly via Metav Werkzeuge or ask the consultants if needed.

SPMW09T308T-A27 WKP25S milling indexable insert — square 90°, Tiger‑tec Silver, for steel and cast iron — Walter Tools

The SPMW09T308T-A27 WKP25S is a square 90° milling indexable insert engineered for high‑productivity machining of steel and cast iron components, utilising the Tiger‑tec Silver coated carbide grade to balance wear resistance and process stability.

• Tiger‑tec Silver coating for extended tool life
• Suitable for steel (P) and cast iron (K)
• Square 90° geometry, 0.8 mm corner radius

Reliable grade and coating for predictable machining results

The WKP25S grade, part of the Tiger‑tec Silver series, combines a coated carbide substrate with a coating architecture optimised for the thermal and mechanical demands of machining steel and cast iron. This composition improves wear resistance and maintains a sharp cutting edge over longer cycles, reducing the frequency of indexings and interruptions. For production environments where cycle time and reproducibility are critical, the coated grade delivers a measurable improvement in tool life and process consistency without compromising dimensional accuracy.

Geometry and chip control that support consistent surface quality

The square 90° form with an 11° relief angle and 0.8 mm corner radius provides a stable cutting geometry that spreads cutting forces and reduces vibration in interrupted and continuous milling. The integrated A27 chipbreaker promotes reliable chip formation for both short, breaking chips typical of cast iron and continuous chips from steel, improving evacuation and lowering the risk of re‑cut. The combination of corner radius and chip control also contributes to repeatable surface finish and less frequent tool condition monitoring, which is beneficial for batch production and mixed‑material runs.

Economical machining through higher productivity and easy integration

With a plate thickness of T3 and tolerance class M, the insert fits common toolholders and aligns with standard tool change routines. The robust coating and grade characteristics reduce tool change intervals and support higher material removal rates, which together help lower overall machining costs per component. Integration into existing milling systems is straightforward thanks to the standard SPMW designation and square format, enabling quick adoption on milling heads designed for 90° inserts. The result is improved throughput with reduced downtime, a direct advantage for job shops and production lines focused on consistency and output.

For application-specific recommendations or batch pricing for Walter Tools Tiger‑tec Silver inserts, contact Metav Werkzeuge for tailored guidance and prompt supply via info@metav-werkzeuge.com • +49 2822 7131930

Technical data

• SKU: SPMW09T308T-A27-WKP25S-WALTER
• Article designation: SPMW09T308T-A27 WKP25S
• Product type: Fräswendeschneidplatte
• Manufacturer: Walter Tools
• Net price: 9.18

Core data

• Relief angle: 11°
• Corner radius: 0.8 mm
• Insert size: 09
• Thickness: T3
• Tolerance class: M

Special features

• Grade: WKP25S (Tiger‑tec Silver coated carbide)
• Geometry: Square 90°
• Chipbreaker: A27
• Suitable for: Steel (P), Cast iron (K)
• Series: Tiger‑tec Silver
• Execution: W

FAQ

What materials is this insert designed for?
The SPMW09T308T-A27 WKP25S insert is designed primarily for steel (P) and cast iron (K), reflecting the WKP25S grade and Tiger‑tec Silver coating optimised for those ISO material groups.

How does the Tiger‑tec Silver coating affect tool life?
The Tiger‑tec Silver coating on the WKP25S grade enhances wear resistance and thermal stability, which typically extends tool life and supports higher cutting parameters compared with uncoated grades.

What advantage does the 0.8 mm corner radius provide?
A 0.8 mm corner radius balances edge strength and surface finish: it increases edge robustness under intermittent cutting while still allowing a consistent surface quality on the workpiece.

Can this insert be used in standard SPMW toolholders?
Yes, the SPMW09T308T‑A27 designation corresponds to standard square 90° insert holders, enabling straightforward replacement in compatible milling heads.

Does the chipbreaker A27 suit both continuous and interrupted cuts?
The A27 chipbreaker promotes effective chip formation for both continuous chips from steel and the short, breaking chips from cast iron, improving evacuation and reducing the risk of chip re‑cut.

Is the tolerance class relevant for precision work?
The M tolerance class provides consistent dimensional conformity suitable for many production applications; select holder and clamping systems accordingly to achieve required part tolerances.

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