CNMG160608-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

High wear resistance and reliable chip control reduce stoppages and extend productive tool life; the Tiger‑tec Silver WKK20S grade together with the MK5 chipbreaker suits abrasive cast iron machining and promotes stable production. Order directly via Metav Werkzeuge or request technical consultation from their advisors for cutting data and process integration.

CNMG160608-MK5 WKK20S — Turning indexable insert, Tiger‑tec Silver, Walter Tools

The CNMG160608-MK5 WKK20S is a turning insert engineered for productive machining of cast iron, combining a Tiger‑tec Silver coated carbide grade with an MK5 chipformer for consistent short‑chip behaviour.

• Tiger‑tec Silver coated carbide for wear resistance
• Optimised MK5 chipbreaker for short chips
• 0° negative rake for stable cutting
• Rhombic 80° CNMG shape, 0.8 mm nose radius

Consistent productivity through optimised coating and grade

The combination of Tiger‑tec Silver coating and the WKK20S grade is aimed at abrasive cast iron machining where predictable edge life matters. Coated carbide provides a wear‑resistant surface layer that reduces abrasive loss and supports repeatable tool life; the grade is balanced to handle the typical short, brittle chips of cast materials as defined for ISO group K. The integrated MK5 chipbreaker is designed to form short, controlled chips, which lowers the risk of chip entanglement and reduces cycle interruptions, resulting in a measurable improvement in process stability and overall throughput.

Robust edge geometry for secure cutting and improved surface quality

A 0° negative rake and rhombic 80° form give the insert mechanical strength at the cutting edge, which is beneficial in interrupted cuts and heavy engagement scenarios. The 0.8 mm nose radius contributes to a stable cutting contact and helps achieve a better surface finish without compromising edge robustness. In practice, a neutral rake angle shifts load-bearing into the carbide substrate, which increases resistance to chipping and supports consistent dimensional results across production runs.

Process advantages that simplify workplace routines

The CNMG geometry is compatible with standard toolholders and is intended to deliver operational reliability in serial turning tasks. The MK5 chipformer produces short chips that are easier to evacuate, lowering manual chip handling and the likelihood of machine downtime caused by chip buildup. Insert clamping is straightforward and, when combined with stable fixturing, supports reproducible results. For customers who require detailed cutting parameters for particular machines or cast iron grades, process data can be provided to align machining strategy with shopfloor capabilities.

Practical recommendations for optimal use

For best results, secure the insert in a rigid holder and ensure stable workpiece clamping to exploit the strength of the cutting edge geometry. Cooling strategy and chip evacuation should be adapted to the component geometry and machine setup; short‑chip formation from the MK5 chipbreaker generally eases the need for aggressive chip control measures. When greater clarity is required on parameter windows or expected tool life for specific cast iron variants, technical consultation is available to tailor the cutting concept and reduce trial time.

Contact Metav Werkzeuge for tailored cutting data and integration advice when using Walter Tools Tiger‑tec Silver CNMG inserts and ensure optimal performance in cast iron production.

Technical Data

• SKU: CNMG160608-MK5-WKK20S-WALTER
• Article: CNMG160608-MK5 WKK20S
• Manufacturer: Walter Tools
• Product type: Turning indexable insert
• Series: Tiger‑tec Silver
• Grade: WKK20S
• Tolerance class: M
• Execution: G

Core data

• Size: 16 mm
• Thickness: 6 mm
• Corner radius: 0.8 mm
• Free angle: 0° (negative)
• Plate form: Rhombus 80°
• Chipbreaker: MK5

Special features

• Coating: Tiger‑tec Silver
• Material/grade: Coated carbide
• Application group: Cast iron (ISO K)
• Shape code: CNMG160608-MK5
• Series description: Optimised for abrasive wear and short, breaking chips

FAQ

Which materials is this insert suitable for?
The CNMG160608-MK5 WKK20S turning insert from Walter Tools is optimised for cast iron (ISO group K) and is designed for abrasive cast‑material behaviour.

What chip control can be expected with this geometry?
The integrated MK5 chipbreaker on the CNMG160608-MK5 WKK20S promotes short, controllable chips, improving evacuation and reducing the risk of chip accumulation.

What are the key geometry specifications for machining setup?
The insert features a rhombic 80° form with a 0.8 mm nose radius and 0° negative rake, which supports a robust cutting edge and stable machining.

Is the insert coated and what benefit does that provide?
Yes; the Tiger‑tec Silver coating on the WKK20S grade enhances wear resistance and contributes to longer, more predictable tool life when machining cast iron.

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

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.