LDMT08T204R-D57 WKP25S Wendeplatten - Walter Tools

Benefit from a high-performance cutting grade and a wear-resistant coating that together deliver reliable edge life and consistent chip control, improving throughput in mixed machining of steel and cast iron; order directly via Metav Werkzeuge or consult the team for application support.

LDMT08T204R-D57 WKP25S Fräswendeschneidplatte — Tiger·tec Silver grade for steel and cast iron by Walter Tools

The LDMT08T204R-D57 WKP25S is a rectangular indexable milling insert designed for productive machining of steel and cast iron in a wide range of milling operations.

• Tiger·tec Silver coating for wear resistance
• Grade WKP25S for steel and cast iron
• 15° relief angle for stable cutting
• 0.4 mm corner radius for surface quality
• Chipbreaker D57 for consistent chip control

Reliable grade and coating for mixed production environments

The combination of the WKP25S grade and the Tiger·tec Silver coating is engineered for demanding applications in ISO groups P (steel) and K (cast iron). This coated carbide composition promotes stable flank and crater behaviour, reducing flank wear during interrupted cuts typical of cast components. Explaining the benefit in practical terms: the coated substrate reduces heat- and abrasion-related degradation so that tool changes are less frequent, which supports higher machine utilisation and lowers per-part tooling cost. The insert designation in the LD-series informs fixture and toolholder choices for integration into existing milling cutters.

Geometry and edge specification that improve workpiece finish

The rectangular form combined with a 0.4 mm corner radius enhances surface finish and improves edge strength during heavy cuts. The 15° relief angle helps to maintain cutting stability by reducing the contact stress on the leading edge, which is particularly valuable when machining interrupted or rough cast surfaces. The chipbreaker D57 is designed to shape and evacuate chips consistently, helping to avoid re-cutting and to protect the fresh cutting edge. These geometry choices translate into fewer rework cycles and a steadier surface quality, especially in production runs where repeatability matters.

Mechanical tolerance and size details that aid process control

Delivered to a tolerance class M, the insert ensures dimensional consistency that simplifies indexable tooling set-up and repeatable clamping. The plate code 08 together with thickness code T2 indicates form and strength suitable for medium to heavy milling passes in robust cutter bodies. Consistent tolerances and standardised form factors reduce adjustment time at the machine and make it easier to predict tool life for production planning. Where tighter tolerances are required, the stability of the grade and coating still supports predictable performance across batches.

Practical application and selection guidance

For mixed workshops that process both unalloyed or alloyed steels and a variety of cast irons, this insert class provides a pragmatic compromise between edge toughness and abrasion resistance. When selecting an insert for a specific cutter, consider the intended depth of cut and the clamping system of the cutter body; the rectangular shape offers straightforward positioning and repeat indexing. If necessary, Metav Werkzeuge can advise on matching cutter bodies and recommended feeds for the grade to achieve the desired balance between productivity and surface integrity.

Contact Metav Werkzeuge for tailored process recommendations and to source the Walter Tools LDMT08T204R-D57 WKP25S insert for your milling operations — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: LDMT08T204R-D57-WKP25S-WALTER
• SKU: LDMT08T204R-D57-WKP25S-WALTER
• Product type: Fräswendeschneidplatte
• Designation: LDMT08T204R-D57 WKP25S
• Manufacturer: Walter Tools
• Series: Tiger-tec Silver
• Grade: WKP25S
• Form: Rechteck

Facts

• Relief angle: 15°
• Corner radius: 0.4 mm
• Plate size: 08
• Chipbreaker: D57
• Thickness: T2
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Material suitability: P (steel) and K (cast iron)
• Material of insert: coated carbide
• Typical applications: general milling of steel and cast iron
• Indexable insert geometry for repeatable positioning

FAQ

What materials is this insert suitable for?
This insert is designed for machining steel and cast iron; the WKP25S grade and the Tiger·tec Silver coating provide a balance of toughness and abrasion resistance for ISO groups P and K.

How does the chipbreaker D57 affect performance?
The D57 chipbreaker shapes and evacuates chips to reduce re-cutting and promote a stable cutting process, which helps maintain consistent edge life and surface finish.

What are the key geometric specifications to consider?
Important specifications include the 15° relief angle, the 0.4 mm corner radius, the rectangular form and the plate size code 08 — these determine edge strength, contact geometry and suitability for specific cutter bodies.

Is this insert suitable for high-feed or heavy-roughing operations?
The combination of a sturdy rectangular form, T2 thickness and the WKP25S grade makes the insert appropriate for robust milling passes; selection should be confirmed against the cutter body and the intended depth of cut.

How is the insert identified for reordering?
Use the full designation LDMT08T204R-D57 WKP25S or the SKU LDMT08T204R-D57-WKP25S-WALTER when reordering to ensure the correct grade, chipbreaker and geometry are supplied.

Protected trademarks and trade names are the property of their respective owners. Brand names are used for clarification and do not imply any affiliation between Metav Werkzeuge and the trademark owners. The offered item is an original, factory-new product from the manufacturer.

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