P4840P-6R-E77 WN15 Wendeplatten - Walter Tools

Take advantage of an uncoated carbide WN15 grade, precise 6R‑E77 chipbreaker geometry and a design optimised for drilling and bore‑enlarging operations to improve process stability and tool life; order the P4840P-6R-E77 WN15 directly via Metav Werkzeuge or ask our consultants if needed.

P4840P-6R-E77 WN15 – drilling/bore‑enlarging indexable insert by Walter Tools

P4840P-6R-E77 WN15 is a drilling and bore‑enlarging indexable insert designed for demanding cutting operations where reliable chip control and consistent edge performance are required

• Uncoated carbide grade WN15
• 6R‑E77 chipbreaker geometry
• For drilling and bore‑enlarging operations
• Walter open series grade for broad use

Consistent cutting performance that reduces process variation

The insert offers repeatable cutting behaviour through its defined geometry and the uncoated carbide composition indicated by the WN15 designation. Uncoated grades are chosen where stable edge strength and predictable wear are priorities; they resist micro‑chipping and provide a reliable baseline for a wide range of machining strategies. The 6R‑E77 chipbreaker supports effective chip formation and evacuation, improving machining continuity and reducing the risk of interruption due to chip entanglement. Where surface finish and dimensional stability matter, this combination helps to maintain cycle times and minimise rework.

Better chip control and tool life through geometry

The 6R‑E77 chipbreaker is designed to shape and break chips close to the cutting zone, which lowers heat concentration and reduces tool edge loading. Controlled chip flow contributes directly to longer insert life and safer machining conditions in bore‑enlarging tasks. For process planners, this means fewer unexpected tool changes and more predictable throughput. Although the grade is uncoated, this often translates into robustness when machining intermittent cuts or when the workpiece surface varies. Check the product matrix for confirmed workpiece compatibility before final selection.

Practical guidance for application and selection

This insert belongs to the Walter open series and is described as an uncoated carbide grade; material suitability must be verified against the product matrix for the specific workpiece. The designation indicates the insert is intended for drilling and bore‑enlarging use in toolholders and drilling heads compatible with the P4840P geometry. When integrating into an existing tool setup, pairing the insert with the correct holder and adapting feeds and speeds to the grade’s characteristics will unlock its full potential. For bespoke machining scenarios or uncertainty about the match with certain materials, technical consultation is recommended to ensure optimal cutting parameters and fixture compatibility.

Contact Metav Werkzeuge for tailored application advice or to request the P4840P-6R-E77 WN15 insert directly; email info@metav-werkzeuge.com or call +49 2822 7131930 for prompt assistance

Technical details

• Article number: P4840P-6R-E77-WN15-WALTER
• Product type: drilling/bore‑enlarging indexable insert
• Grade: WN15
• Chipbreaker: 6R‑E77
• Series: Walter open series
• Material: Katalogabhängig
• ISO designation: P4840P-6R-E77 WN15

Data

• No numerical specifications provided in the source data

Special features

• Uncoated carbide (WN15) as described in product enrichment
• Designed for chip control in drilling and bore‑enlarging operations
• Open series grade for broad application scope
• Use case recommendation: verify material suitability via product matrix

FAQ

What materials is this insert suitable for?
Material suitability must be checked against the product matrix; the WN15 grade is an uncoated carbide and the P4840P-6R-E77 WN15 insert is intended for a broad range of applications, but specific workpiece recommendations depend on that matrix.

Does the insert have a coating?
No, the insert is described as an uncoated carbide grade (WN15), which provides robust edge strength for many drilling and bore‑enlarging tasks.

What is the role of the 6R‑E77 chipbreaker?
The 6R‑E77 chipbreaker promotes controlled chip formation and evacuation, contributing to improved process stability and longer insert life during drilling and bore‑enlarging operations.

Can this insert be used in standard drilling heads?
The P4840P geometry fits holders and drilling heads designed for that indexable insert form; compatibility with a specific toolholder should be confirmed prior to use.

Where can technical parameters or cutting data be obtained?
Cutting data and the detailed product matrix are available through Metav Werkzeuge; technical consultation is recommended to match the P4840P-6R-E77 WN15 insert to the intended application.

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

The Walter AG (brand presentation: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and trade names remain the property of their respective owners and are cited for explanation only. The offered item is an original, factory‑new article from the manufacturer.