P4840P-7R-E67 WKP25S Wendeplatten - Walter Tools

Take advantage of the Tiger·tec Silver coating, the wear-resistant WKP25S grade and the 7R-E67 chipbreaker to achieve stable, productive drilling and boring of steel and cast iron; order the insert directly via Metav Werkzeuge or consult the technical team if additional data is required.

P4840P-7R-E67 WKP25S drilling/reaming indexable insert — Tiger·tec Silver, for steel and cast iron (Walter Tools)

The P4840P-7R-E67 WKP25S is an indexable insert designed for drilling and reaming operations, optimised for demanding machining of steel and cast iron with a focus on process stability and chip control.

• Tiger·tec Silver coating technology
• Optimised for steel and cast iron machining
• Robust WKP25S coated carbide grade
• Geometry 7R-E67 for controlled chipbreaking

Maximise output through consistent cutting performance

The Tiger·tec Silver series combines advanced coating technology with a purpose-designed substrate to deliver reliable cutting and extended tool life. The WKP25S grade is a coated carbide developed for the thermal and mechanical demands of machining steel, as well as the abrasive nature of cast iron. With the 7R-E67 geometry, the insert provides predictable chip formation and evacuation, which reduces the risk of workpiece damage and minimises interruptions for tool changes. This results in higher uptime and a more efficient machining cycle.

Better surfaces and process security in serial production

Stable cutting edges and consistent wear behaviour lead to improved part-to-part repeatability and surface finish. The combination of coating and substrate in this insert supports higher cutting parameters while maintaining edge integrity, so process windows remain broad and controllable. For production environments where small deviations cause costly rework, the insert’s design delivers process security and reduces scrap rates by promoting uniform material removal and reliable edge life.

Practical selection and machining advantages

Choosing an insert with the correct grade and chipbreaker is essential for predictable results. The Tiger·tec Silver WKP25S grade is tailored to the heat generation and chip forms typical of P (steel) applications, while also tolerating the short, brittle chips of K (cast iron). The 7R-E67 chipbreaker is engineered to yield manageable chips at common feeds and speeds for drilling and reaming, lowering the likelihood of chip entanglement and clogging. In workshops seeking measurable productivity gains, this insert helps to shorten cycle times and stabilise tool-change intervals.

For machining tasks requiring high process reliability with Walter Tools’ Tiger·tec Silver grade, contact Metav Werkzeuge for tailored advice and ordering support: info@metav-werkzeuge.com — +49 2822 7131930

Technical data

• Article number: P4840P-7R-E67-WKP25S-WALTER
• Article designation: P4840P-7R-E67 WKP25S
• Product type: drilling/reaming indexable insert

Core data

• Grade: WKP25S
• Geometry: 7R-E67
• Series: Tiger·tec Silver

Special features

• Coating: Tiger·tec Silver
• Material: coated carbide
• Suitable for: Steel (P), Cast iron (K)
• Manufacturer: Walter Tools

FAQ

What materials is this insert suitable for?
The insert is suitable for machining steel (ISO group P) and cast iron (ISO group K); the WKP25S grade and Tiger·tec Silver coating are selected for these applications.

How does the 7R-E67 geometry improve machining?
The 7R-E67 chipbreaker promotes controlled chipbreaking and reliable evacuation during drilling and reaming, which supports uninterrupted production and consistent surface quality.

Is the WKP25S grade a coated carbide?
Yes, WKP25S is a coated carbide grade from the Tiger·tec Silver family, optimised for thermal stability and wear resistance in P and K material groups.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and registered trademarks are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered article is an original, factory-new product from the manufacturer.