CCMT09T312-MW4 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKK20S grade for productive, wear-resistant machining of cast iron; the rhombic 80° geometry with 1.2 mm corner radius and MW4 chipbreaker ensures stable cutting and reliable chip control — order directly via Metav Werkzeuge or request application advice from our consultants.

CCMT09T312-MW4 WKK20S indexable turning insert — Tiger·tec Silver coating, for cast iron — Walter Tools

The CCMT09T312-MW4 WKK20S is a rhombic 80° indexable turning insert with a 1.2 mm corner radius and a 7° clearance angle, engineered for economical and consistent machining of cast iron.

• Tiger·tec Silver coating for wear resistance
• Grade WKK20S tuned for cast iron
• Rhombic 80° form for versatile turning
• MW4 chipbreaker for dependable chip control

Higher productivity through a coating engineered for abrasive materials

The combination of the Tiger·tec Silver coating and the WKK20S grade produces a cutting edge that is optimised for the abrasive nature of cast iron. The coating, applied to a coated carbide substrate, reduces flank wear and extends tool life under typical interruptions and short, breaking-chip conditions. As a result, cycle times can be stabilised and tool change frequency reduced, which supports a more efficient production flow. The performance is particularly relevant in series turning where tool life and consistent part quality determine throughput.

Geometry and chip control that simplify machining processes

The rhombic 80° form, combined with a 1.2 mm corner radius and 7° clearance, provides a balance between edge strength and versatility on turning operations. The MW4 chipbreaker is designed to produce controllable, short chips when machining grey and nodular cast irons, improving evacuation and reducing secondary machining risks. This geometry and chip control together support a reliable surface finish and dimensional stability; the indexable design allows rapid replacement of worn edges, keeping machine downtime to a minimum.

Shop-floor advantages and application focus

Specified for ISO material group K, the insert is intended principally for cast iron applications where abrasive wear and brittle chip formation are common. The designation CCMT09 indicates compatibility with standard CCMT toolholders used across many turning systems, enabling straightforward integration into existing tool inventories. The grade’s mix of toughness and wear resistance makes it suitable for a range of operations from roughing to semi-finishing on cast-iron components, delivering consistent results with lower tooling overhead. For operations seeking predictable tool life and easy logistics, a stocked supply of these inserts supports continuous production with limited intervention.

For high-reliability cast-iron turning choose Walter Tools' CCMT09T312-MW4 WKK20S inserts from Metav Werkzeuge — contact our technical team at info@metav-werkzeuge.com or call +49 2822 7131930 for specification support and availability

Technical Data

• SKU: CCMT09T312-MW4-WKK20S-WALTER
• Article designation: CCMT09T312-MW4 WKK20S
• Product type: Indexable turning insert (drehwendeschneidplatte)
• Manufacturer: Walter Tools

Core technical data

• Insert form: Rhombic 80°
• Corner radius: 1.2 mm
• Clearance angle: 7°
• Insert size: 09
• Thickness: T3
• Tolerance class: M

Materials & features

• Grade: WKK20S
• Coating/series: Tiger·tec Silver (coated carbide)
• Chipbreaker: MW4
• Suitable material group: Cast iron (ISO K)
• Application: Turning

FAQ

Is this insert suitable for machining cast iron?
Yes. The CCMT09T312-MW4 WKK20S insert uses the WKK20S grade and Tiger·tec Silver coating, which are specifically tuned for abrasive wear and the short, breaking chips typical of cast-iron machining.

What are the key geometric features of the insert?
The insert features a rhombic 80° form with a 1.2 mm corner radius and a 7° clearance angle, plus an MW4 chipbreaker to support stable cutting and controlled chip formation.

Will this fit standard CCMT toolholders?
The designation CCMT09 indicates compatibility with standard CCMT toolholders commonly used for indexable turning inserts, allowing straightforward installation in appropriate holder systems.

For which operations is this grade especially recommended?
The WKK20S grade is recommended for a range of turning tasks on cast iron, from robust roughing cuts to semi-finishing, where a balance of wear resistance and toughness is required.

What benefit does the Tiger·tec Silver coating bring?
The Tiger·tec Silver coating improves wear resistance on abrasive materials, leading to longer tool life and more consistent process performance when turning cast iron.

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

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