TCGT16T308-MK4 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver wear resistance and the MK4 chipbreaker geometry for reliable machining of cast iron; the insert’s 7° clearance and 0.8 mm corner radius deliver steady edge life and predictable surface finish. Order the insert through Metav Werkzeuge or ask the Metav consultants for application-specific recommendations.

TCGT16T308-MK4 WKK20S triangular insert for cast iron by Walter Tools — Tiger‑tec Silver, MK4 chipbreaker

TCGT16T308-MK4 WKK20S is a triangular indexable insert designed for productive drilling, boring and turning of cast iron components, combining a coated‑carbide grade with a chip‑forming geometry for short, manageable chips.

• Tiger‑tec Silver coated carbide
• Optimised for cast iron (ISO K)
• MK4 chipbreaker for short chips
• 7° clearance and 0.8 mm corner radius

Greater productivity when machining cast iron

The insert is built around the WKK20S grade from the Tiger‑tec Silver family, a coated carbide formulation tuned for the abrasive wear and short, breaking chips typical of cast iron (ISO K). The result is a measurable increase in process stability and repeatable component quality: higher cutting speeds are achievable compared with uncoated grades, while tool life is extended under standard production conditions. The triangular 60° geometry permits three effective cutting edges per index, improving overall economy per insert and reducing tool change intervals.

Controlled chip behaviour and consistent surface finish

Thanks to the MK4 chipbreaker and positive geometry, the insert produces short, controllable chips that reduce downtime and minimise the risk of surface damage or entanglement in rotating operations. The specified 7° clearance angle combined with a 0.8 mm corner radius stabilises the cutting edge, giving a robust contact zone at interrupted cuts and maintaining a reproducible surface finish. For manufacturers aiming at predictable cycle times and reduced rework, this geometry delivers practical benefits in daily production.

Easy specification and integration into existing tool systems

The triangular insert with an inscribed circle of 16 mm and thickness T3 fits many common toolholders and drilling/turning applications; its designation TCGT16T308‑MK4 WKK20S follows standard indexing nomenclature for straightforward ordering and inventory control. The coated carbide construction means fewer unexpected tool changes, while the tolerance class G assures consistent dimensions for automated and manual toolset-ups. If uncertain about holder compatibility or cutting parameters, Metav Werkzeuge can supply cutting data and adaptation advice to align the insert with current machining centres.

Reliable brand performance and process confidence

Manufactured by a recognised name in precision tooling, this insert benefits from tested coating technology and proven substrate choices that favour stable chip formation and predictable edge wear. The combination of grade, chipbreaker and geometry supports high repeatability in serial production and gives confidence where component integrity and finish are critical. For operations seeking both technical robustness and cost efficiency, this solution balances wear resistance and productivity.

For application advice or parameter sheets for Walter Tools Tiger‑tec Silver inserts, contact Metav Werkzeuge — practical guidance and ordering support are available at info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: TCGT16T308-MK4-WKK20S-WALTER
• Designation: TCGT16T308-MK4 WKK20S
• Brand: Walter Tools
• Series: Tiger‑tec Silver
• Grade: WKK20S

Facts

• Free clearance angle: 7°
• Corner radius: 0.8 mm
• Inscribed circle: 16 mm
• Plate thickness: T3
• Tolerance class: G

Special features

• Chipbreaker: MK4
• Plate form: Triangle 60°
• Coating / substrate: coated carbide
• Material application: cast iron (ISO K)
• Execution: T
• Optimised for abrasive wear and short, breaking chips

FAQ

What materials is the insert suitable for? The TCGT16T308‑MK4 WKK20S from Walter Tools is optimised for cast iron (ISO K) and designed to cope with the abrasive wear characteristics of these materials.

How does the MK4 chipbreaker affect machining? The MK4 chipbreaker produces short, controlled chips that reduce entanglement and improve process reliability when using the Walter Tools insert in drilling and turning operations.

What does the WKK20S grade deliver in practice? WKK20S (Tiger‑tec Silver) is a coated carbide grade that offers improved wear resistance and consistent tool life when machining cast iron, supporting higher cutting speeds and repeatable results.

Is the geometry compatible with standard toolholders? The triangular 60° form with a 16 mm inscribed circle and T3 thickness conforms to common indexing standards, allowing straightforward integration into compatible holders for the Walter Tools insert.

How should the 0.8 mm corner radius be used in planning? A 0.8 mm corner radius gives a compromise between edge strength and surface finish; it is suitable for general finishing and semi‑finishing cuts where a robust edge is required.

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

Die Walter AG (Markenauftritt: Walter Tools) mit Hauptsitz in Tübingen gehört zu den weltweit führenden Herstellern von Präzisionswerkzeugen für die Metallbearbeitung und ist Teil des schwedischen Sandvik‑Konzerns. Geschützte Markenzeichen und Warenbezeichnungen liegen im Recht ihrer jeweiligen Eigentümer. Markennamen und geschützte Warenzeichen werden ausschließlich zu Erklärungszwecken genannt. Es besteht keinerlei Verbindung zwischen unserem Unternehmen und den genannten Marken. Es handelt sich bei dem angebotenen Artikel um originale fabrikneue Waren des Herstellers.