SDMT09T308-D57 WKK25G WKK25G Wendeplatten - Walter Tools

Benefit from the combination of the Tiger‑tec Gold coating, optimised chip control for cast iron and a robust 0.8 mm corner radius that extends edge life and process stability. Order the insert directly via Metav Werkzeuge or consult the Metav team for application-specific recommendations.

SDMT09T308-D57 WKK25G – indexable milling insert, Tiger‑tec Gold, for cast iron | Walter Tools

The SDMT09T308-D57 WKK25G is an indexable milling insert engineered for high‑performance machining of cast iron, combining the Tiger‑tec Gold coating with a D57 chipbreaker for controlled chips and consistent surface quality.

• Tiger‑tec Gold coating for long tool life
• Optimised D57 chipbreaker for cast iron
• Square 90° geometry for robust milling
• Corner radius 0.8 mm for stable edge strength

Longer tool life through advanced coating and grade

The Tiger‑tec Gold technology and the WKK25G grade mean this insert is a coated carbide solution optimised for abrasive cast iron conditions. The combination of a wear‑resistant coating and a substrate tuned for brittle, short‑breaking chips reduces flank wear and makes machining runs more predictable. For production environments where repeatability matters, the insert’s composition delivers reduced regrinds and fewer tool changes, which translates into lower per‑component cost and fewer interruptions to the machining cycle.

Precision geometry that improves productivity

The square 90° form with a 0.8 mm corner radius and a 15° free angle gives a balance between edge strength and cutting impact resistance. The D57 chipbreaker promotes consistent chip shape in cast iron, helping to avoid chip entanglement and to maintain stable cutting forces. Together, these features reduce vibrations and allow for higher feed rates in many operations; shorter cycle times are achieved without sacrificing surface integrity. Tolerance class M and thickness T3 ensure reliable seating and repeatable positioning in standard toolholders.

Stable process behaviour and application support for series production

Designed for productive milling in cast iron, this insert supports both roughing and more controlled finishing passes where chip control and edge stability are required. The Tiger‑tec Gold-treated surface lowers the friction at the cutting zone, which often improves surface finish and extends tool life under interrupted cuts. Backed by Walter Tools’ manufacturing standards, the component contributes to consistent output and predictable maintenance intervals, supporting lean production and predictable cost planning.

Contact Metav Werkzeuge for tailored application advice on using the Walter Tools SDMT09T308-D57 WKK25G insert in cast iron processes — email info@metav-werkzeuge.com or call +49 2822 7131930 for a technical consultation

Technical data

• SKU: SDMT09T308-D57-WKK25G-WALTER
• Name: Fräswendeschneidplatte SDMT09T308-D57 WKK25G
• Manufacturer: Walter Tools
• Series: Tiger‑tec Gold
• Grade: WKK25G

Facts

• Free angle: 15°
• Corner radius: 0.8 mm
• Insert shape: Square 90°
• Insert size: 09
• Thickness: T3
• Tolerance class: M
• Chipbreaker: D57

Special features

• Coating: Tiger‑tec Gold (coated carbide)
• Application: Cast iron
• Execution: T
• ISO designation: SDMT09T308-D57 WKK25G
• Material code: K (cast iron suitability)

FAQ

Which materials is this insert designed for?
The SDMT09T308-D57 WKK25G is formulated for machining cast iron; the WKK25G grade and Tiger‑tec Gold coating are optimised for the abrasive, short‑chip behaviour typical of cast materials.

What advantages does the Tiger‑tec Gold coating provide?
Tiger‑tec Gold on the SDMT09T308-D57 WKK25G reduces friction and increases wear resistance, resulting in extended tool life and more consistent part quality during longer production runs.

How do the geometry and chipbreaker affect machining?
The square 90° geometry combined with the D57 chipbreaker produces controlled chips and stabilises cutting forces, while the 0.8 mm corner radius improves edge robustness for interrupted cuts.

Is this insert suitable for finishing as well as roughing?
Yes. The WKK25G grade offers a balance between wear resistance and toughness, allowing the SDMT09T308-D57 WKK25G to perform in both productive roughing and controlled finishing operations on cast iron.

What should be considered when integrating this insert into a tool system?
Ensure correct seating for tolerance class M and match holder geometry to the square 90° form; the insert’s T3 thickness and ISO designation SDMT09T308-D57 WKK25G define the compatible toolholders.

Walter Tools (Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen)

Protected trademarks and trade names remain the property of their respective owners. Brand names and trademarks are mentioned for explanatory purposes only and do not indicate any affiliation with our company. The offered item is an original, brand‑new product from the manufacturer.