DNMG150608-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from high wear resistance and stable cutting performance thanks to the Tiger·tec Silver coating and the WKK20S grade, optimised for abrasive cast‑iron applications; order the insert directly via Metav Werkzeuge or contact our consultants for machining advice.

DNMG150608-MK5 WKK20S turning insert, Tiger·tec Silver coating, for cast iron — Walter Tools

The DNMG150608-MK5 WKK20S is a rhombic 55° turning insert with an MK5 chipbreaker, designed for reliable performance when machining cast iron materials.

• Tiger·tec Silver coating for wear resistance
• Optimised for cast‑iron machining
• Rhombic 55° geometry, 0.8 mm corner radius
• Negative 0° rake for stable cutting

Longer tool life from coating and grade selection

The combination of Tiger·tec Silver surface technology and the WKK20S grade means a coated carbide construction that is tuned to resist the abrasive wear typical of cast materials. Coatings act as a thermal and mechanical barrier on the cutting edge, delaying flank and crater wear; this translates into extended tool life and fewer indexings in production. For operations with frequent short, brittle chips, the chosen grade delivers consistent edge condition and therefore more predictable tool‑change intervals.

Geometry and chip control for consistent process stability

The rhombic 55° form with a 0.8 mm corner radius and the MK5 chipbreaker prioritise controlled chip formation and a balanced cutting edge. A negative 0° relief angle increases edge strength and reduces vibration in interrupted cuts, while the chipbreaker geometry helps to break and evacuate chips reliably—improving surface finish and reducing risk of rework. Explaining briefly: a chipbreaker modifies chip flow so that short, broken chips form instead of long, entangling swarf, which is particularly useful when machining grey or nodular cast iron.

Practical benefits for production environments

Specified as an insert for cast‑iron machining (ISO group K), this turned tool grade supports higher process reliability and lower downtime in repetitive turning tasks. The robust edge condition and optimised chip control contribute to consistent dimensional results and can reduce cycle times through stable cutting parameters. Shops aiming to improve throughput with fewer interruptions will find the insert offers a balance of wear resistance and mechanical strength that aids continuous production. For material groups outside cast iron, assessment by tooling specialists is recommended to confirm suitability.

Contact Metav Werkzeuge for expert selection of Walter Tools Tiger·tec Silver inserts — email info@metav-werkzeuge.com or phone +49 2822 7131930

Technical data

• Article number: DNMG150608-MK5-WKK20S-WALTER
• Designation: DNMG150608-MK5 WKK20S
• Product type: Turning insert
• Manufacturer: Walter Tools

Core specifications

• Insert size: 15
• Plate thickness: 06
• Corner radius: 0.8 mm
• Relief angle: 0° (negative)
• Shape: Rhombic 55°
• Tolerance class: M
• Chipbreaker: MK5

Applications & features

• Coating: Tiger·tec Silver
• Grade: WKK20S (coated carbide)
• Material suitability: Cast iron (ISO group K)
• Execution: G
• Optimised for abrasive wear and short, breaking chips

FAQ

What materials is this insert designed for?
The DNMG150608-MK5 WKK20S insert is optimised for machining cast iron (ISO group K) and is designed to handle the abrasive wear and short, breaking chips typical of those materials.

What advantage does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating on the WKK20S grade offers improved wear resistance and thermal stability, helping the insert maintain edge condition for longer in cast‑iron operations.

How does the MK5 chipbreaker affect machining?
The MK5 chipbreaker on the DNMG150608-MK5 WKK20S controls chip form to produce short, manageable chips, which improves evacuation and reduces the risk of chip entanglement during turning.

What are the key geometric features to note?
The insert features a rhombic 55° shape, a 0.8 mm corner radius and a negative 0° relief; these characteristics enhance edge strength and process stability, especially for interrupted cuts.

Is this insert suitable for high‑speed turning?
The WKK20S grade and its coating are aimed at durability in abrasive cast‑iron applications; cutting speeds should be chosen according to machine capability and specific casting properties to ensure optimal performance.

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

The Walter AG (brand appearance: Walter Tools), headquartered in Tübingen, is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Swedish Sandvik Group. Protected trademarks and brand names are the property of their respective owners. Brand names and trademarks are mentioned for explanatory purposes only. There is no connection between our company and the brands named. The offered item is original and brand‑new from the manufacturer.