CCGT09T304-MK4 WKK20S Wendeplatten - Walter Tools

Benefit from a combination of the Tiger‑tec Silver coating and an optimised rhombic geometry for consistent chip control and extended tool life; the robust MK4 chipbreaker and 0.4 mm corner radius ensure reliable performance in abrasive cast‑iron applications. Order the insert through Metav Werkzeuge or contact our consultants for application advice.

CCGT09T304-MK4 WKK20S — Rhombic 80° indexable turning insert, Tiger‑tec Silver (Walter Tools)

The CCGT09T304-MK4 WKK20S is a rhombic 80° indexable turning insert engineered for efficient machining of cast iron, combining a wear‑resistant coating with a chipbreaker tuned to produce controllable, short chips in interrupted and continuous cuts.

• Tiger‑tec Silver coated carbide grade WKK20S
• Optimised for cast iron machining
• Rhombic 80° form, 0.4 mm corner radius
• 7° clearance angle, MK4 chipbreaker

Durable coating and grade for abrasive cast iron

The combination of the Tiger‑tec Silver coating and the WKK20S grade provides high abrasion resistance and thermal stability, characteristics that matter when working with abrasive grey and nodular cast irons. The substrate is coated carbide, designed to resist flank wear and maintain a sharp cutting edge under typical cast‑iron cutting conditions. This leads to more predictable tool life and fewer unscheduled insert changes, supporting continuous production. The MK4 chipbreaker complements the grade by shaping chips to reduce tangling and aid chip evacuation during turning and boring operations.

Geometry tailored for stability and edge strength

The rhombic 80° insert form with a 0.4 mm corner radius balances edge strength and accessibility for profile work. A 7° clearance angle reduces rubbing at the flank and lowers cutting forces in many turning set‑ups. The CCGT ISO variant denotes the insert shape and hole/seat configuration, ensuring compatibility with standard toolholders designed for CCGT‑type inserts. With a compact insert size (09) and thickness T3, the design targets rigidity for medium‑to‑light finishing operations while retaining enough edge support for intermittent cuts in cast iron.

Process reliability and integration into production

Tolerance class G and the ISO designation ensure consistent dimensions for repeatable seating and predictable clamping behaviour in indexed toolholders. The MK4 chipbreaker is tuned to produce short, broken chips typical for cast iron, improving operator safety and reducing downstream chip‑handling effort. Classified for ISO group K (cast iron), this insert supports customers seeking reliable surface finish and dimensional stability in serial turning or boring processes. Walter Tools’ positioning as a precision‑tool provider underlines a focus on production‑proven geometry and consistent manufacturing quality.

For application advice, availability and to specify the Walter Tools CCGT09T304-MK4 WKK20S for cast‑iron turning, contact Metav Werkzeuge for tailored technical support and rapid supply.

Technical data

• SKU: CCGT09T304-MK4-WKK20S-WALTER
• Designation: CCGT09T304-MK4 WKK20S
• Product type: Boring/reaming and turning indexable insert
• Brand: Walter Tools
• Series: Tiger‑tec Silver

Core specifications

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Insert size: 09
• Thickness: T3
• Shape: Rhombic 80°
• Tolerance class: G

Special features

• Coating: Tiger‑tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: MK4
• Application: cast iron (ISO group K)
• ISO designation: CCGT09T304-MK4

FAQ

What materials is this insert intended for?
The CCGT09T304‑MK4 WKK20S is specified for cast iron machining (ISO group K) and is optimised to handle the abrasive wear and short, breaking chips typical of these materials.

How does the MK4 chipbreaker affect machining?
The MK4 chipbreaker on the WKK20S grade produces short, controllable chips during turning, which improves evacuation and reduces the risk of chip entanglement in cast‑iron operations.

Is the insert compatible with standard CCGT toolholders?
Yes, the CCGT designation indicates the standard rhombic form and hole pattern, allowing the insert to be used with toolholders designed for CCGT‑type indexable inserts.

What performance benefits does the Tiger‑tec Silver series deliver?
The Tiger‑tec Silver series combines a wear‑resistant coating with a reliable substrate, delivering improved abrasion resistance, extended edge life and stable cutting behaviour in abrasive materials such as cast iron.

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

Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned for explanatory purposes only. There is no connection between our company and the named brands. The offered item is original, factory‑new goods from the manufacturer.