RDMW1204M0T-A27 WKP35S Wendeplatten - Walter Tools

Take advantage of the Tiger‑tec Silver coating and the WKP35S grade to secure consistent edge stability and efficient machining of steel and cast iron; order the insert directly via Metav Werkzeuge or consult the specialists for application advice.

RDMW1204M0T-A27 WKP35S — indexable milling insert (round, A27 chipbreaker) by Walter Tools

The RDMW1204M0T-A27 WKP35S is an indexable milling insert engineered for productive finishing and semi‑finishing on steel and cast iron, combining a coated carbide substrate with a geometry optimised for controlled chip formation.

• Tiger‑tec Silver coated carbide grade WKP35S
• Optimised A27 chipbreaker for stable chips
• Suited to steel and cast iron machining
• Round 12 mm insert with 15° clearance

Increased productivity through consistent edge life

The combination of the Tiger‑tec Silver coating and the WKP35S grade provides a durable, wear‑resistant cutting edge that supports longer tool life and stable performance under varying cutting conditions. The coated carbide composition reduces flank wear and improves thermal resistance, which translates into fewer indexings and reduced tool change time. For manufacturing operations targeting repeatable cycle times, this insert delivers measurable gains in throughput by maintaining cutting geometry and limiting unexpected downtime.

Improved chip control and surface quality for reliable finishing

The A27 chipbreaker and the round insert form ensure predictable chip breaking and evacuation when machining ISO groups P and K (steel and cast iron). The 15° clearance reduces rubbing at the flank while maintaining a secure cutting edge engagement; this helps achieve a consistent surface finish and lowers the risk of built‑up edge. Controlled chip formation reduces the likelihood of surface damage and protects the workpiece, especially in mixed production batches where material variability can affect process stability.

Easy integration and process security for workshop routines

With a nominal 12 mm diameter and a thickness corresponding to the “04” specification, the insert fits standard round seat milling cutters and is available in tolerance class M for predictable seating accuracy. The combination of geometry and coating makes it suitable for a wide range of operations from light finishing to more aggressive semi‑finish passes. Process planners benefit from reduced set‑up sensitivity and simpler tool inventory, while operators gain confidence from a broadly applicable insert that supports both productivity and repeatability.

Discuss application requirements with Metav Werkzeuge for Walter Tools Tiger‑tec Silver inserts; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: RDMW1204M0T-A27-WKP35S-WALTER
• SKU: RDMW1204M0T-A27-WKP35S-WALTER
• Designation: RDMW1204M0T-A27
• Product type: Indexable milling insert (round)
• Series: Tiger‑tec Silver
• Grade: WKP35S
• Manufacturer: Walter Tools

Facts

• Insert size: 12 mm
• Thickness: 04
• Clearance angle: 15°
• Chipbreaker: A27
• Tolerance class: M
• Execution: W

Special features

• Coating: Tiger‑tec Silver (coated carbide)
• Shape: Round
• Material suitability: Steel (P) and cast iron (K) per ISO 513
• Application: Finishing and semi‑finishing operations
• Material label: P / K

FAQ

What materials is this insert intended for?
The RDMW1204M0T-A27 WKP35S is specified for steel and cast iron machining (ISO groups P and K) and the WKP35S grade is tuned for typical wear mechanisms in these groups.

How does the A27 chipbreaker influence performance?
The A27 chipbreaker promotes short, manageable chips and enhances evacuation in interrupted cuts, improving process security and surface quality when using the round insert geometry.

What does the 15° clearance achieve in practice?
A 15° clearance reduces flank contact and heat transfer to the cutting edge, which helps maintain edge integrity and supports consistent surface finishes over extended tool life.

Is the insert compatible with standard round‑seat milling cutters?
Yes, the round form with a 12 mm nominal size and tolerance class M is intended for standard round‑seat toolholders matching the RDMW designation.

Which proprietary technology is used for the coating?
This insert uses the Tiger‑tec Silver coating technology to provide enhanced thermal resistance and wear protection on a coated carbide substrate.

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

The Walter AG (brand appearance: Walter Tools), headquartered 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 are the property of their respective owners. Brand names and protected trade names are mentioned for explanatory purposes only. There is no affiliation between our company and the mentioned brands. The offered article is an original, factory‑new product of the manufacturer.