P4840C-8R-F57 WXP40 Wendeplatten - Walter Tools

Take advantage of the combination of WXP40 uncoated carbide for reliable wear behaviour and the 8R‑F57 chipbreaker for stable chip control, ensuring productive machining and consistent surface quality; order the insert directly via Metav Werkzeuge or ask our consultants if additional application data is required.

P4840C-8R-F57 P4840C-8R-F57 WXP40 indexable boring/reaming insert by Walter Tools — WXP40 uncoated carbide, 8R‑F57 chipbreaker

P4840C-8R-F57 WXP40 — an indexable insert engineered for precision boring and enlargement operations in CNC turning and milling systems, especially where repeatable geometry and stable chip formation are priorities

• WXP40 uncoated carbide grade for consistent wear behaviour
• 8R‑F57 chipbreaker for controlled chip flow
• Walter open-grade series for broad application checks
• Precision indexable design for repeatable results

Consistent cutting performance that sustains production

The insert offers predictable wear behaviour by combining an uncoated carbide matrix with an optimised chipformer, giving process reliability across batch runs. The WXP40 grade is an open-series Walter carbide selected for general-purpose performance; because it is uncoated, heat-sensitive cuts and reconditioning strategies are easier to plan. The 8R‑F57 chipbreaker geometry reduces the risk of uncontrolled chip formation, which supports uninterrupted cycles and reduces machine downtime. For production planners, this translates into fewer tool changes and more stable component quality.

Practical integration into machining processes

Designed as a precision indexable insert, the component fits common boring and enlargement toolholders and enables fast index changes without extensive recalibration. The insert’s geometry supports consistent tool path behaviour, helping to maintain dimensional tolerances during longer production runs. When integrating into existing processes, check the manufacturer’s product matrix to match workpiece materials and cutting parameters to the grade; this ensures the chosen combination of feed, speed and coolant strategy exploits the WXP40 strengths while preserving tool life and surface finish quality.

Application guidance and material compatibility

The cutting material is specified as uncoated carbide (WXP40); suitability for particular workpiece materials should be verified in the product matrix. Because the grade is not coated, it can offer advantages in interrupted cuts and certain thermal conditions where coatings may delaminate. The 8R‑F57 chipbreaker is tuned for controlled chip segmentation; this is especially beneficial in medium-depth boring operations where chip evacuation is critical. For unfamiliar applications, consult the technical data sheets to align cutting data and coolant strategy with the intended material and hole geometry.

Reliability and workshop benefits

Using this insert supports a predictable machining rhythm: fewer unexpected tool failures and a clearer path to process standardisation. The open-series Walter grade approach allows engineers to compare alternatives within the same family before committing to a specific grade; this reduces the risk of over- or under-specifying the tool for a new component. In practice, adopting such a standardised insert can simplify inventory management and enable faster decisions in fixture or toolholder setups, contributing to overall shop-floor efficiency and repeatable component quality.

Contact Metav Werkzeuge for tailored application advice on Walter Tools WXP40 inserts and to discuss the optimal chipbreaker and cutting data for the intended workpiece

Technical Data

• Article number: P4840C-8R-F57-WXP40-WALTER
• Designation: P4840C-8R-F57 WXP40
• Product type: Boring/reaming indexable insert
• Manufacturer: Walter Tools
• Material: Uncoated carbide (WXP40)

Facts

• Chipbreaker: 8R‑F57
• Series: Walter open-grade series
• Grade: WXP40
• SKU: P4840C-8R-F57-WXP40-WALTER

Special features

• Uncoated carbide matrix for specific thermal and cutting behaviours
• Optimised chipformer for stable chip control
• Designed for precision boring and enlargement operations
• Suitability to be verified in Walter product matrix

FAQ

What is the primary material of the P4840C-8R-F57 WXP40 insert?
The P4840C-8R-F57 WXP40 insert is made from an uncoated carbide grade designated WXP40; check the product matrix for material-specific recommendations.

Which chipbreaker does this insert use and why does it matter?
This insert uses the 8R‑F57 chipbreaker, which promotes controlled chip segmentation and improved evacuation during typical boring operations, helping to maintain process stability.

Can the insert be used for finishing or roughing operations?
The geometry and the WXP40 grade support general-purpose performance; intended use (finishing vs roughing) should be confirmed against the product matrix and cutting data for the specific workpiece material.

How to ensure correct toolholder compatibility for this insert?
Verify that the toolholder accepts the P4840C family indexable geometry and confirm seating and clamping specifications to retain precision during index changes.

Manufacturer: Walter Tools; Headquarters: Tübingen, Germany; Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com

Die Walter AG (marketed as Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik group. Protected trademarks and trade names are the property of their respective owners. Brand names and trademarked product names are used solely for explanation. There is no connection between our company and the brands mentioned. The offered item is an original, brand-new product from the manufacturer.