P4840P-2R-E77 WN15 Wendeplatten - Walter Tools

Take advantage of the combination of a dedicated chipbreaker (2R‑E77), the WN15 uncoated cemented carbide grade and an application‑orientated insert geometry for reliable holemaking. Order the P4840P‑2R‑E77 WN15 directly via Metav Werkzeuge or consult our advisors for material‑specific guidance.

P4840P-2R-E77 WN15 – Drilling/Reaming Indexable Insert, 2R‑E77 chipbreaker (Walter Tools)

A P4840P‑2R‑E77 WN15 indexable insert for drilling and reaming tasks, engineered as an open Walter cutting grade for general holemaking duties; check the product matrix for exact material suitability

• WN15 open Walter cutting grade
• Uncoated cemented carbide substrate
• 2R‑E77 chipbreaker for chip control
• Designed for drilling and reaming

Stable chip control for dependable machining

The dedicated 2R‑E77 chipbreaker is designed to promote predictable chip formation and evacuation during interrupted or continuous holemaking. By controlling chip shape and flow, the insert helps reduce the risk of built‑up edge and tool overload, which supports consistent cycle times and fewer process interruptions. This benefit is particularly relevant in batch production and repair operations where repeatability is essential, and it can contribute to longer tool life in appropriate setups.

Reliable cutting performance from an open carbide grade

The open WN15 grade is specified as an uncoated cemented carbide option; this means the substrate provides good baseline hardness and edge stability without an additional coating layer. For workshops seeking a straightforward, easily regrindable grade or when coating compatibility is an issue, this option is advantageous. Users should consult the product matrix for the recommended workpiece materials, as the grade is intended for broad application but requires verification for specialised alloys or heat‑treated steels.

Practical advantages for holemaking and tool integration

As a drilling/reaming indexable insert, the component is intended for straightforward installation in compatible toolholders, enabling fast insert replacement and reduced setup times. The geometry supports hole finishing operations where control over chip flow and contact conditions matters; this can improve surface integrity and reduce rework. Because insert selection affects holder design and coolant strategy, consideration of toolholder compatibility and machining parameters is recommended before specification.

Guidance on application and specification

When selecting this insert, evaluate the series designation and chipbreaker against the machining task: the open Walter series supplies flexibility but relies on chosen process parameters for optimum results. If uncertain about the match between the insert and the workpiece material, refer to the product documentation or request the detailed matrix from Metav Werkzeuge. For bespoke requirements or mixed‑material batches, modest trialing under production‑representative conditions will confirm suitability without committing to broader implementation.

Talk to Metav Werkzeuge for tailored application advice on the P4840P‑2R‑E77 WN15 insert or request the product matrix and ordering support via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: P4840P-2R-E77-WN15-WALTER
• Label: Bohr-/Aufbohrwendeschneidplatte P4840P-2R-E77 WN15 Walter Tools
• Manufacturer: Walter Tools
• Product type: Drilling/Reaming indexable insert
• Grade: WN15
• Chipbreaker: 2R-E77
• Series: Walter cutting grade - open series
• Material: catalogue dependent

Facts

• No numerical specifications provided in dataset

Special features

• Uncoated cemented carbide substrate
• 2R‑E77 chipbreaker for controlled chips
• Open grade series for flexible selection
• Intended for drilling and reaming applications

FAQ

What is the primary purpose of this insert?
The P4840P‑2R‑E77 WN15 insert is intended for drilling and reaming operations where controlled chip formation and straightforward grade selection are priorities.

Is the WN15 grade coated or uncoated?
The WN15 grade for the P4840P‑2R‑E77 is an uncoated cemented carbide option; check the product matrix for specific material recommendations.

Which chipbreaker does this insert use and why does it matter?
This insert features the 2R‑E77 chipbreaker, which is designed to improve chip control and evacuation, aiding process stability during holemaking.

Can this insert be re‑ground or reconditioned?
As an uncoated cemented carbide insert, re‑grinding and reconditioning are typically possible, subject to local workshop capability and the insert geometry.

How to verify that this insert suits a specific workpiece material?
Refer to the product matrix and technical documentation for the P4840P‑2R‑E77 WN15, or contact Metav Werkzeuge for detailed application advice.

Manufacturer/Responsible: AB Sandvik Coromant, Mossvägen 10, 811 34 Sandviken, Sweden, support.coromant@sandvik.com

The Walter AG brand (marketed as Walter Tools) is a leading global supplier of precision tools for metalworking and is part of the Sandvik group. Protected trademarks and trade names remain the property of their respective owners. The referenced item is original new merchandise from the manufacturer.