SCGT09T308-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Combine high wear resistance and controlled chip formation with the Tiger‑tec Silver grade WKK20S and MK4 chipbreaker for efficient cast‑iron turning; order the inserts directly via Metav Werkzeuge or contact our consultants for machining guidance.

SCGT09T308-MK4 WKK20S — square 90° indexable insert with MK4 chipbreaker for cast iron, Walter Tools

The SCGT09T308-MK4 WKK20S is a square, 90° indexable insert engineered for productive turning and boring of cast iron, offering a MK4 chipbreaker and a 7° relief angle to support stable cutting conditions.

• Tiger‑tec Silver coated carbide grade WKK20S
• Optimised chip control with MK4 chipbreaker
• 7° relief angle for stable cutting
• Suitable for cast iron machining

Higher throughput for cast‑iron production

The combination of Tiger‑tec Silver technology and the WKK20S grade results in a coated carbide that balances abrasive wear resistance with toughness, which is critical when machining cast iron. The insert geometry and 7° free angle deliver consistent contact conditions at the cutting edge, reducing vibration and enabling higher, more reliable metal removal rates. Designed for repetitive, industrial use, this specification helps maintain cycle times and contributes to predictable tool life in series production.

Precise chip control to reduce downtime

The MK4 chipbreaker is engineered to produce short, manageable chips when cutting grey and nodular cast irons, improving swarf evacuation and protecting the workpiece surface. As a coated carbide insert, the plate benefits from the series’ optimized coating stack that resists abrasive particle attack and supports repeatable edge stability. These characteristics translate into fewer interruptions for chip clearing and less frequent edge changes, supporting continuous machining and a lower total cost of ownership.

Reliable geometry and process security

With a square 90° form, T3 plate thickness and a 0.8 mm corner radius, the insert provides robustness where intermittent engagement or interrupted cuts may occur. The tolerance class G ensures consistent fit and repeatable positioning in toolholders, while the designation SCGT09T308-MK4 WKK20S identifies a solution tailored for demanding cast‑iron applications. The product’s build focuses on process security and surface integrity, making it suitable for shops that prioritise stable, predictable results.

For tailored application advice and to secure the appropriate Walter Tools SCGT09T308-MK4 WKK20S inserts for high‑volume cast‑iron machining, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss tooling and supply options.

Technical data

• Article number: SCGT09T308-MK4-WKK20S-WALTER
• Designation: SCGT09T308-MK4 WKK20S
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Plate form: Quadrat 90°

Facts

• Free angle: 7°
• Corner radius: 0.8 mm
• Plate size: 09
• Plate thickness: T3
• Tolerance class: G

Special features

• Coated carbide grade WKK20S
• Chipbreaker MK4
• Suitable for cast iron
• Application: turning / boring insert
• Sorten- und Serienbeschreibung: Tiger·tec Silver

FAQ

What materials is this insert suitable for?
The SCGT09T308-MK4 WKK20S from Walter Tools is formulated primarily for cast iron machining and is optimised for abrasive wear and short, breaking chips typical of that material.

What does WKK20S and Tiger‑tec Silver mean for performance?
WKK20S denotes a Walter coated carbide grade within the Tiger‑tec Silver family; the combination provides enhanced wear resistance and toughness suited to productive cast‑iron cutting.

Which chipbreaker is fitted and what is its effect?
The insert features a MK4 chipbreaker designed to produce short, controlled chips in cast‑iron turning, improving chip evacuation and surface quality.

How does the 7° relief angle influence cutting?
A 7° free angle reduces rubbing and helps maintain a stable cutting edge angle, which supports consistent chip formation and protects the insert edge during interrupted cuts.

Is the insert suitable for interrupted cuts and heavy engagement?
The square 90° geometry, 0.8 mm corner radius and T3 thickness give the insert the mechanical stability required for intermittent engagement and applications demanding robust edge strength.

Walter AG (brand: Walter Tools), Tübingen, Germany. Protected trademarks and trade names are the property of their respective owners. Mention of brand names serves explanatory purposes only and does not indicate any affiliation; the offered article is an original, factory‑new product of the manufacturer.