RCMT1204M0-RK4 WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger-tec Silver coating, the WKK20S carbide grade optimised for cast iron and the RK4 chipbreaker for stable chip control — a practical choice for consistent productivity. Order the insert directly via Metav Werkzeuge or contact the consultants for application advice.

RCMT1204M0-RK4 WKK20S round indexable turning insert — Walter Tools, Tiger-tec Silver, 7° clearance

RCMT1204M0-RK4 WKK20S is a round indexable turning insert designed for reliable machining of cast iron components in production environments

• Tiger-tec Silver coating for wear resistance
• WKK20S grade, tuned for cast iron machining
• RK4 chipbreaker for controlled chip formation
• Round form with 7° clearance for flexible cutting

Stable chip control for abrasive cast iron work

The combination of the RK4 chipbreaker with the WKK20S grade provides predictable chip formation when machining cast iron, reducing the risk of irregular chips and improving process reliability. The cutting geometry and the round insert shape allow smooth engagement and consistent cutting forces, which helps to avoid unexpected tool behaviour on brittle or abrasive cast materials. The Tiger-tec Silver coating further suppresses abrasive wear, extending usable edge life and maintaining dimensional stability over longer tool cycles.

Predictable tool life and process security

Coated carbide in the WKK20S formulation delivers a balance between wear resistance and toughness tailored to the demands of cast iron. With tolerance class M and a 7° clearance, the insert supports repeatable seating and reliable edge performance across multiple indexings. These characteristics contribute to lower process variation and reduced setup adjustments, supporting efficient batch production and predictable maintenance intervals. The combination of geometry and coating increases the probability of consistent component quality.

Practical fit and handling for series production

The RCMT-compatible designation indicates an insert geometry that fits a wide range of standard tool holders engineered for round inserts, making it simple to integrate into existing turning setups without special tooling changes. The insert’s balanced design supports both intermittent and continuous cuts encountered in cast iron workpieces. For application planning, the grade and chipbreaker selection mean fewer process experiments are needed, saving machine time and improving throughput. If additional machining parameters are required for a specific part geometry, technical advice is available to align cutting data with production targets.

Contact Metav Werkzeuge today to discuss the RCMT1204M0-RK4 WKK20S insert for cast iron machining and to get tailored recommendations for integration into existing turning operations

Technical Data

• Article number: RCMT1204M0-RK4-WKK20S-WALTER
• SKU: RCMT1204M0-RK4-WKK20S-WALTER
• Label: Drehwendeschneidplatte RCMT1204M0-RK4 WKK20S Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Series: Tiger-tec Silver

Facts

• Free angle: 7°
• Plate size: 12
• Plate thickness: 04
• Tolerance class: M

Special features

• Grade: WKK20S (coated carbide)
• Chipbreaker: RK4
• Plate form: Round
• Suitability: Cast iron (K)
• Execution: T

FAQ

What materials is this insert suited for?
The RCMT1204M0-RK4 WKK20S insert is formulated for machining cast iron (workpiece group K) and is optimised for the abrasive and short-chipping behaviour typical of these materials.

What advantage does the Tiger-tec Silver series offer?
The Tiger-tec Silver coating on the WKK20S grade improves resistance to abrasive wear and supports longer edge life in cast iron applications, increasing process stability during production runs.

Which chipbreaker is fitted and what is its benefit?
The insert features the RK4 chipbreaker, which promotes controlled, repeatable chip formation in cast iron, reducing the likelihood of entangling or damaging chips and helping to maintain surface quality.

How does the insert geometry influence mounting and use?
The RCMT designation denotes a round insert geometry compatible with standard round-insert tool holders, offering flexible entry angles and reliable seating for repeated indexing during production.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and registered designations are mentioned for explanatory purposes only. There is no affiliation between our company and the named brands. The item offered is an original, factory-new product of the manufacturer Walter Tools.