VCMW160404-RK6 WKK20S Wendeplatten - Walter Tools

Take advantage of Tiger·tec Silver performance, the WKK20S grade and the RK6 chipbreaker for dependable cast-iron turning and consistent tool life; order the VCMW160404-RK6 WKK20S insert directly via Metav Werkzeuge or contact our consultants for tailored advice.

VCMW160404-RK6 WKK20S indexable turning insert – RK6 chipbreaker, Rhombic 35° geometry (Walter Tools)

VCMW160404-RK6 WKK20S is an indexable turning insert designed for efficient machining of cast iron, offering improved chip control and reliable edge stability for productive turning operations

• Tiger·tec Silver coating for cast iron
• RK6 chipbreaker for controlled chips
• Rhombic 35° geometry for stable engagement
• 0.4 mm corner radius for fine surface finish

Stable chip control that increases process reliability

The combination of the RK6 chipbreaker and the WKK20S coated grade is tuned for abrasive cast-iron machining, delivering consistently shaped chips and reduced downtime from chip-related issues. The RK6 geometry actively breaks and guides chips away from the cutting zone, which lowers the risk of re-cutting and protects the workpiece surface. This focused chip management supports higher material removal rates while maintaining surface quality, making the insert suitable for both continuous and interrupted cuts on cast iron.

Proven coating and grade for longer tool life

The insert’s Tiger·tec Silver coating and the WKK20S hardmetal substrate are engineered to resist the abrasive wear typical of cast-iron alloys. The coating improves thermal stability and reduces adhesion of material to the cutting edge, which extends edge life and helps preserve dimensional accuracy over long production runs. For operations where consistent cycle times and reduced insert changes matter, this combination provides measurable economy through extended life and fewer tool interventions.

Geometry and form that improve cutting behaviour

A Rhombic 35° shape with a 7° free angle ensures controlled entry and predictable cutting forces, while the 0.4 mm corner radius supports fine finishing when light depths of cut are required. The moderate relief angle and the insert profile contribute to stable tool engagement, which reduces vibration and enhances repeatability. This geometry is particularly effective in facing and light turning operations where surface integrity and accuracy are priorities.

What the designation means for workshop planning

The designation VCMW160404-RK6 WKK20S identifies an indexable turning insert with a clear geometry and chip control concept: VCMW indicates the rhombic insert family, 16 denotes the inscribed circle size, 04 indicates the thickness class, RK6 refers to the chipbreaker variant and WKK20S is the coated grade optimised for cast iron. Understanding these elements helps when specifying inserts for machine settings and determines compatible toolholders, cutting parameters and expected performance in daily production.

Contact Metav Werkzeuge for application guidance on Tiger·tec Silver inserts and to match the VCMW160404-RK6 WKK20S to specific cast-iron turning requirements — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: VCMW160404-RK6-WKK20S-WALTER
• Article designation: VCMW160404-RK6 WKK20S
• Product type: Indexable turning insert
• Manufacturer: Walter Tools

Data

• Plate size: 16
• Plate thickness: 04
• Free angle: 7°
• Corner radius: 0.4 mm
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Grade: WKK20S
• Chipbreaker: RK6
• Geometry: Rhombus 35°
• Application: Cast iron (K)

FAQ

What materials is this insert intended for? This insert is intended for machining cast iron; the WKK20S grade and Tiger·tec Silver coating are optimised for abrasive cast-iron work.

How does the RK6 chipbreaker affect machining? The RK6 chipbreaker on the VCMW160404-RK6 WKK20S insert produces short, controlled chips and improves chip evacuation during cast-iron turning.

Can this insert achieve good surface finish? Yes, with the 0.4 mm corner radius and Rhombic 35° geometry the insert supports fine finishing passes and consistent surface quality in cast-iron applications.

What does the VCMW160404-RK6 code tell about the insert? The code indicates a rhombic 35° insert family (VCMW), size 16, thickness class 04, RK6 chipbreaker and the WKK20S grade suitable for cast iron.

Is this insert suitable for interrupted cuts? The combination of the Tiger·tec Silver coating, robust grade and RK6 chip control makes the insert capable of handling interrupted cuts in cast iron with improved edge resistance.

Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen

The Walter AG (brand appearance: 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 remain the property of their respective owners. Brand names and protected designations are mentioned solely for explanation and identification. There is no affiliation between our company and the listed brands. The offered item is an original, factory-new product of the manufacturer.