WNMG100616-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from an abrasive-wear‑optimised cutting grade and robust trigon geometry for steady, repeatable cast iron machining — combine Tiger·tec Silver performance with a 1.6 mm corner radius and a dedicated MK5 chipbreaker to maintain production flow. Order or request advice through Metav Werkzeuge for fast, reliable supply.

WNMG100616-MK5 WKK20S indexable turning insert — Trigon 80°, Tiger·tec Silver, Walter Tools

The WNMG100616-MK5 WKK20S is a trigon indexable turning insert engineered for productive machining of cast iron components in serial and job-shop environments.

• Tiger·tec Silver coated carbide grade
• Optimised for cast iron (K) machining
• Trigon 80° geometry for robust cutting
• 1.6 mm corner radius, negative 0° rake

Consistent productivity for abrasive cast iron machining

The combination of the WKK20S grade and the Tiger·tec Silver coating targets the typical, abrasive wear patterns of cast iron. This results in stable chip formation and extended edge life under interrupted and continuous cuts. The insert’s trigon geometry provides increased cutting edge strength compared with more acute shapes, so interruptions and vibration-prone cuts are less likely to cause edge chipping. For manufacturing planners, this means fewer insert changes, more predictable cycle times and a measurable improvement in process uptime.

Robust geometry and chip control for dependable results

Featuring a dedicated MK5 chipbreaker and a Trigon 80° form, the insert controls short, brittle chips typical of cast iron. The 1.6 mm corner radius and negative 0° rake contribute to a conservative cutting edge angle that resists breakout during heavy engagement. In practice, these design choices translate into stable tool behaviour during moderate to heavy depths of cut and reliable surface finish, reducing rework and tool-related interruptions on the shop floor.

Clear specification for fast integration into production

Key specification items are concise and shop-floor ready: the insert’s format and tolerances support standard toolholders for trigon geometries, the coated carbide grade is tuned for K (cast iron) work, and the construction suits medium to high metal-removal rates. For process engineers unfamiliar with the grade nomenclature: WKK20S denotes a coated carbide optimised for cast iron, where the coating enhances resistance to abrasive wear and thermal loading during intermittent cuts.

Practical handling and application guidance

The insert is intended for turning operations on cast iron components where consistent edge life is required. When replacing round or rhombic inserts with this trigon type, ensure compatible toolholders and check radial clearance to accommodate the 80° form. Where quicker chip evacuation is needed, pairing the MK5 breaker with moderate feed and appropriate coolant strategy supports controlled swarf and reduced machine downtime. The technical balance between edge strength and chip control offers a pragmatic solution for many production tasks.

Contact Metav Werkzeuge for tailored application advice and reliable delivery of Walter Tools Tiger·tec Silver inserts to support continuous production.

Technical Data

• SKU: WNMG100616-MK5-WKK20S-WALTER

• Article: Drehwendeschneidplatte WNMG100616-MK5 WKK20S Walter Tools

• Series / Coating: Tiger·tec Silver

• Grade: WKK20S

• Manufacturer: Walter Tools

• Execution: G

• Tolerance class: M

Facts

• Insert size: 10

• Thickness code: 06

• Corner radius: 1.6

• Insert form: Trigon 80°

• Relief angle: 0° (negative)

Special features

• Chipbreaker: MK5

• Coated carbide grade tailored for cast iron

• Application group: K (cast iron)

• Abrasive wear resistance optimised

• Robust edge geometry for interrupted cuts

FAQ

What materials is this insert suited for?
The WNMG100616-MK5 WKK20S insert is designed primarily for cast iron (K) machining and performs well where abrasive wear and short, breaking chips are common.

How does the Tiger·tec Silver series benefit production?
Tiger·tec Silver coating on the WNMG100616-MK5 WKK20S improves abrasive wear resistance and thermal stability, extending edge life and supporting consistent cycle times in serial production.

Which chipbreaker should be selected for short, brittle chips?
The integrated MK5 chipbreaker on this trigon insert is intended to produce controlled, short chips in cast iron turning operations, reducing the need for manual chip handling.

Is the trigon geometry suitable for heavy interruptions?
Yes, the Trigon 80° form combined with a 1.6 mm corner radius delivers increased edge strength and resistance to chipping during interrupted cuts.

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

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