P44290-1R20-D57 WKP25S Wendeplatten - Walter Tools

High productivity from the WKP25S grade and the Tiger‑tec Silver coating combines with optimised chip control for consistent results; order the P44290-1R20-D57 WKP25S directly via Metav Werkzeuge or ask our consultants if needed.

P44290-1R20-D57 WKP25S – Milling indexable insert, Tiger‑tec Silver coated, for steel and cast iron | Walter Tools

A robust milling indexable insert designed for medium to heavy machining of steel and cast iron, the P44290-1R20-D57 WKP25S delivers consistent cutting performance and predictable tool life.

• Tiger‑tec Silver coated grade WKP25S
• Optimised chipbreaker 1R20‑D57
• Suitable for steel and cast iron

Reliable productivity through material‑specific grade design

The WKP25S grade is a coated carbide developed to balance wear resistance and edge stability when machining steel and cast iron. Its coating technology, Tiger‑tec Silver, reduces friction at the cutting zone, which helps maintain cutting speeds and extend tool life. For shops aiming to increase throughput, this results in fewer insert changes and steadier process windows. The term "coated carbide" refers to a hardmetal substrate with a thin, engineered surface layer that improves adhesion and thermal resistance compared with uncoated grades.

Improved process security with optimised chip control

The 1R20‑D57 chipbreaker geometry is engineered for reliable chip formation across common steel and cast‑iron grades. Controlled chips reduce the risk of rework and machine downtime by preventing long, stringy chips and promoting easy evacuation. In practice, this means more predictable surface finish and consistent dimensional results during serial production. For operations without specialised chip handling, the combination of grade and chipbreaker significantly simplifies daily machining routines.

Practical benefits for workshop efficiency and quality

Using a dedicated indexable insert tailored to the workpiece groups P (steel) and K (cast iron) improves both economy and component quality. The insert’s design supports stable cutting edges and consistent tool life, which contributes to lower cycle times and reduced scrap rates. For engineers evaluating tool choices, this insert offers a convincing compromise between cost per cutting edge and overall machining reliability—factors that directly affect delivery capability and customer satisfaction.

For personalised advice on integrating the Tiger‑tec Silver WKP25S into a production process or to arrange supply via Metav Werkzeuge, please contact Metav Werkzeuge for expert guidance and prompt handling.

Technical data

• Article number: P44290-1R20-D57-WKP25S-WALTER
• Part designation: P44290-1R20-D57
• Product type: Milling indexable insert
• Manufacturer: Walter Tools

Facts

• Grade: WKP25S
• Series: Tiger‑tec Silver
• Chipbreaker: 1R20‑D57
• Material groups: P / K

Special features

• Coating: Tiger‑tec Silver (coated carbide)
• Application: Steel, Cast iron
• Optimised for stable chip formation
• Designed for productive serial machining

FAQ

What materials is this insert suitable for? The P44290-1R20-D57 WKP25S insert is suitable for machining steel (P) and cast iron (K) in accordance with its grade and geometry.

How does the Tiger‑tec Silver coating help performance? The Tiger‑tec Silver coating on the WKP25S improves thermal resistance and reduces friction, which in turn supports longer tool life and consistent cutting conditions.

What does the chipbreaker designation 1R20‑D57 indicate? The 1R20‑D57 designation describes the insert’s chip control geometry; it is tuned to produce short, controllable chips for the intended material groups.

Can this insert be used for finishing operations? Yes, the grade and chipbreaker combination provide a balance between wear resistance and edge stability that can deliver good surface finishes in many finishing and semi‑finishing applications.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and trademarks are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The item offered is an original, factory‑new product of the manufacturer Walter Tools.