P4840P-8R-A57 WKP25S Wendeplatten - Walter Tools

Take advantage of the reliable combination of Tiger·tec Silver coating, the WKP25S grade and the 8R-A57 chipbreaker for consistent chip control and long tool life; order directly via Metav Werkzeuge or consult our specialists for application advice.

Bohr-/Aufbohrwendeschneidplatte P4840P-8R-A57 WKP25S – indexable insert for drilling and boring, Tiger·tec Silver coated, Walter Tools

P4840P-8R-A57 WKP25S is an indexable insert designed for drilling and bore-enlarging operations, optimised for machining steel and cast iron with enhanced chip control and wear resistance

• Tiger·tec Silver coating for long life
• WKP25S grade for steel and cast iron
• 8R-A57 chipbreaker for consistent chips
• Precise insert for drilling and boring

Increase productivity in steel and cast-iron machining

The Tiger·tec Silver technology and the WKP25S grade combine to deliver stable performance when machining steel and cast iron. Designed as a drilling and bore-enlarging indexable insert, the geometry and coating reduce flank and crater wear under continuous cutting, which supports predictable tool life and lowers tooling costs per component. The practical outcome is a more efficient production flow with fewer unscheduled tool changes and improved process stability.

Reliable chip control and edge stability for safer cycles

The 8R-A57 chipbreaker geometry is engineered to produce short, controlled chips when cutting into unalloyed and alloyed steels as well as cast materials, reducing the risk of chip entanglement and machine downtime. The grade is a coated carbide composition optimised for the thermal and mechanical stresses typical of steel machining. In practice, this means the insert delivers consistent cutting forces and predictable wear behaviour, which simplifies machining parameter selection and repeatability across batches.

Seamless integration into toolholders and production cells

As a drilling/boring insert from WALTER, the designation P4840P-8R-A57 WKP25S follows standard indexable insert conventions and can be integrated into compatible toolholders for stable clamping and repeatable positioning. The combination of coating and chipbreaker supports higher cutting parameters where process conditions allow, which can translate into shorter cycle times and improved part quality. For production planners, the insert offers a balance of process reliability and economical performance that supports continuous manufacturing targets.

For precise application advice or to procure the Walter Tools P4840P-8R-A57 WKP25S indexable insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability for specific machining tasks

Technical data

• Article number: P4840P-8R-A57-WKP25S-WALTER
• SKU: P4840P-8R-A57-WKP25S-WALTER
• Designation: P4840P-8R-A57 WKP25S
• Product type: Drilling/boring indexable insert
• Brand: Walter Tools
• Series: Tiger·tec Silver
• Grade: WKP25S
• Chipbreaker: 8R-A57
• Material code: P / K

Facts

• Applicable materials: Steel (P), Cast iron (K)
• Coating technology: Tiger·tec Silver
• Carbide type: Coated carbide (Hartmetall)
• Intended operation: Drilling and boring

Special features

• Optimised for stable chip formation
• Designed for productivity and repeatable performance
• Suitable for a broad steel and cast-iron range
• Walter Tools quality and manufacturing standards

FAQ

Which materials is this indexable insert suitable for?
The insert is specified for machining steel (P) and cast iron (K); the grade WKP25S and Tiger·tec Silver coating are adapted to the thermal and abrasive conditions typical of these materials.

What does the designation P4840P-8R-A57 WKP25S indicate?
This designation identifies the geometry and grade: P4840P-8R-A57 denotes the insert shape and the 8R-A57 chipbreaker, while WKP25S is the Walter Tools carbide grade and coating specification.

What benefit does the 8R-A57 chipbreaker provide?
The 8R-A57 chipbreaker promotes consistent, short chips and improved chip evacuation when machining steels and cast irons, lowering the risk of chip-related interruptions.

Is the WKP25S grade coated or uncoated?
The WKP25S grade is a coated carbide grade from the Tiger·tec Silver series, developed for wear resistance and stable cutting performance in turning and drilling contexts.

Can this insert be used for stainless steel applications?
A specific suitability for stainless steel is not indicated in the provided data; the designation emphasises compatibility with steel and cast iron rather than stainless materials.

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 are used solely for identification and explanation; there is no affiliation between our company and the mentioned brands. The offered article is original, factory-new merchandise of the named manufacturer, Walter Tools.