WNMG080412-RP5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of the Tiger‑tec Silver grade and the RP5 chipbreaker for stable, efficient machining of cast iron; the Trigon 80° geometry and 1.2 mm corner radius provide rigidity and predictable tool life. Order the insert via Metav Werkzeuge or consult their technical team for application-specific advice.

WNMG080412-RP5 WKK20S indexable turning insert, Trigon 80°, for cast iron — Walter Tools

A WNMG080412-RP5 WKK20S turning insert designed for productive cast-iron turning applications within the Tiger‑tec Silver range, offering robust chip control and consistent surface quality.

• Tiger‑tec Silver grade WKK20S for cast iron
• Trigon 80° geometry for stable cutting
• RP5 chipbreaker, optimised chip control
• 1.2 mm corner radius, negative 0° rake

Efficient, predictable cast-iron machining with a dedicated grade

The insert from the Tiger‑tec Silver family combines a WKK20S coated carbide grade with geometry tuned for abrasive cast‑iron workpieces (ISO group K). This configuration reduces premature edge wear and maintains consistent cutting behaviour on the short, brittle chips typical of cast iron. The result is stable cutting with fewer edge changes and a predictable production rhythm, which supports higher machine utilisation and lower process costs.

Reliable chip control that protects productivity

The RP5 chipbreaker is designed to segment and guide chips away from the cut, decreasing the risk of chip re-cutting or entanglement. Improved chip control directly contributes to fewer interrupted cycles and reduces secondary operations such as manual chip clearing. For process planners this means greater repeatability and less risk of surface damage on the workpiece, so cycle times remain more consistent across batches.

Coating and geometry for extended tool life

The Tiger‑tec Silver coating provides thermal and adhesive wear resistance that extends usable life under typical cast‑iron conditions. Combined with a Trigon 80° shape that increases insert rigidity, the design allows for conservative to medium cutting data with confidence. The negative 0° rake contributes to a robust cutting edge, suitable where stable cutting forces and reliable edge strength are prioritised over very light finishing geometries.

Practical design details that support shop-floor use

Key form factors—insert size 08, thickness 04, and a 1.2 mm corner radius—offer a balance between strength and access in common turning setups. The three‑sided trigonal form provides multiple indexing positions, improving value per insert. The execution code G and tolerance class M indicate manufacturing consistency appropriate for industrial turning operations, simplifying toolholder selection and inventory management.

For application advice on Walter Tools inserts or to check suitability for a specific cast‑iron grade, contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or +49 2822 7131930 to discuss supply and technical parameters.

Technical Data

• Article number: WNMG080412-RP5-WKK20S-WALTER
• Article designation: WNMG080412-RP5 WKK20S
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Core data

• Insert size: 08
• Thickness: 04
• Corner radius: 1.2 mm
• Free angle / rake: 0° (negative)
• Nose angle: Trigon 80°
• Tolerance class: M

Special features

• Grade: WKK20S (coated carbide, Tiger‑tec Silver)
• Chipbreaker: RP5
• Material suitability: cast iron (ISO group K)
• Execution: G
• Product type: indexable turning insert (drehwendeschneidplatte)

FAQ

Which materials is this insert intended for?
The insert is optimised for cast iron machining (ISO material group K); the WKK20S grade in the Tiger‑tec Silver range balances wear resistance and toughness for typical cast‑iron chips.

What benefits does the RP5 chipbreaker provide?
The RP5 chipbreaker improves chip segmentation and evacuation, reducing the risk of chip entanglement and supporting more consistent cycle times when turning abrasive materials.

How does the Trigon 80° geometry affect cutting stability?
The Trigon 80° geometry increases insert rigidity and contact area at the cutting edge, which helps maintain a stable cut and reduces vibration during interrupted or heavy cuts.

What does the 1.2 mm corner radius mean for surface finish?
A 1.2 mm corner radius offers a compromise between strength and finish; it supports robust edge life while delivering acceptable surface quality for many roughing and finishing passes on cast iron.

How many usable edges does the insert offer?
The trigonal form provides multiple indexable cutting edges, allowing several repositions before the insert must be replaced, which improves cost efficiency per cutting edge.

Manufacturer: Walter Tools; Walter AG, 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.