SDGT1204PDR-D57 WKP25S WKEP25S Wendeplatten - Walter Tools

Take advantage of the combination of the Tiger·tec Silver coating and the WKP25S grade for stable chip control and long tool life; the square 90° geometry and 15° clearance angle ensure robust shoulder milling and consistent surface quality. Order the SDGT1204PDR-D57 WKP25S insert directly via Metav Werkzeuge or ask our consultants if needed.

SDGT1204PDR-D57 WKP25S indexable milling insert — Tiger·tec Silver, for steel and cast iron — Walter Tools

A SDGT1204PDR-D57 WKP25S indexable milling insert engineered for productive shoulder and face milling on steel and cast iron, combining a square 90° form with a chipbreaker matched to mixed-material workshops.

• Tiger·tec Silver coating for enhanced wear resistance
• Square 90° geometry for robust shoulder milling
• 15° clearance angle for stable cutting performance
• Optimised for steel and cast iron machining

Greater productivity through controlled wear and longer tool life

The combination of the WKP25S cutting grade and the Tiger·tec Silver coating delivers improved wear resistance and thermal stability during continuous operation. This translates into fewer insert changes and a lower cost per component in series production. The coated carbide substrate is formulated to resist abrasive wear typical of ferrous materials, meaning stable cutting-edge behaviour under elevated temperatures. For production managers, the practical benefit is predictable tool life and reduced machine downtime, which supports tighter process planning and higher overall throughput.

Robust geometry for reliable shoulder and face milling

The square 90° plate form with a 15° clearance angle provides a solid support geometry for shoulder milling and face cutting tasks where axial and radial loads vary. The insert’s geometry and hardened seating reduce vibration and maintain dimensional stability at the cutting edge, leading to consistent surface finish and repeatable part accuracy. In short-cycle operations or when machining interrupted cuts, this geometry minimises the risk of edge chipping and supports higher feed rates without sacrificing workpiece quality.

Practical material coverage and application guidance

Designed for the ISO material groups P and K, the insert is optimised for machining steel and cast iron. The designation reflects the plate’s suitability for unalloyed and alloyed steels as well as abrasive cast materials; the integrated chipbreaker D57 helps control breaking and evacuation of the typical chips produced by these groups. For users less familiar with cutting grades, this means fewer built-up-edge occurrences and more reliable chip flow, reducing the need for manual chip clearing and improving operator safety at the machine.

Process reliability that supports consistent results

A focus on stable chip formation and a tough coated microstructure ensures the insert maintains its cutting geometry over longer tool life, which supports process reproducibility across shifts. The result is consistent part quality and less inspection rework. For job shops and production lines alike, the capability to run parts with fewer tool interventions means better machine utilisation and a clearer path to meeting delivery commitments. The insert’s tolerance class G underlines the precision level expected for secure seating and predictable cutting behaviour.

For tailored recommendations on integrating this Walter Tools insert into existing setups, contact Metav Werkzeuge for consulting and availability.

Technical Data

• Article number: SDGT1204PDR-D57-WKP25S-WALTER
• Product type: Fräswendeschneidplatte / indexable milling insert
• Grade: WKP25S
• Series: Tiger·tec Silver
• Chipbreaker: D57

Facts

• Shape: Square 90°
• Size: 12
• Thickness: 04
• Clearance angle: 15°
• Tolerance class: G

Special features

• Coating technology: Tiger·tec Silver
• Material group suitability: P / K (steel, cast iron)
• Manufacturer: Walter Tools
• Series and sort description: Coated carbide insert optimised for ferrous materials

FAQ

What materials is this insert suitable for? The SDGT1204PDR-D57 WKP25S is optimised for steel (ISO group P) and cast iron (ISO group K), offering reliable performance across both material types.

Which geometry advantages does the square form provide? A square 90° geometry offers solid edge support for shoulder and face milling, increasing resistance to radial and axial loads and promoting consistent surface finish.

How does the Tiger·tec Silver coating benefit machining? The Tiger·tec Silver coating improves thermal resistance and wear control, extending tool life and enabling stable cutting conditions when machining ferrous materials.

Is the chipbreaker suitable for interrupted cuts? The D57 chipbreaker is designed to control chip formation for steels and cast irons, supporting safer chip evacuation and reduced risk of edge damage during interrupted cutting.

Manufacturer: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany, info@walter-tools.com

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