TNMA160412-RK7 WKK10S WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of stable edge life, optimised chip control for cast iron and a robust 60° triangular geometry for productive turning operations; order the insert directly via Metav Werkzeuge or consult the team for application advice.

TNMA160412-RK7 WKK10S turning insert — WKK10S grade, Tiger·tec Silver coating, triangle 60°

TNMA160412-RK7 WKK10S is a coated turning insert designed for reliable metalcutting in cast iron applications, offering a stable negative rake and optimised chip control.

• Tiger·tec Silver coating for cast iron
• RK7 chipbreaker for controlled chips
• 60° triangle provides three usable edges
• 1.2 mm corner radius for robustness

Stable chip control tuned for cast iron productivity

The insert’s RK7 chipbreaker and Tiger·tec Silver surface treatment deliver consistent chip formation when machining abrasive cast iron grades. The coating and substrate combine to reduce abrasive flank wear typical of cast components; the result is longer intervals between regrinds and fewer interruptions in the machining cycle. This improved process stability lowers the risk of unexpected tool changes and supports predictable cycle times on batch and series production, enhancing overall throughput.

Robust geometry for repeatable edge life and process security

A 60° triangular form with a 1.2 mm corner radius and a 0° (negative) rake angle offers mechanical strength at the cutting edge, providing high resistance to chipping under interrupted cuts or tough cast iron inclusions. The WKK10S grade is a coated carbide designed specifically for abrasive materials, balancing toughness and wear resistance to maintain dimensional control over longer runs. For production environments seeking consistent surface finish and tool life, this geometry helps to reduce the frequency of tool indexing and rework.

Efficient use of insert features for practical machining benefits

The insert format TNMA160412-RK7 places performance where it matters: triangular shape gives three cutting edges per index, the chipbreaker supports short, breakable chips common in cast iron, and the coating reduces build-up and flank wear. These technical attributes translate into concrete shop-floor benefits — fewer tool interventions, predictable surface quality and simplified tool management. For engineers and operators requiring dependable results on cast components, the insert offers a pragmatic balance of productivity and durability.

For machining cast iron with a focus on productivity and repeatable results, contact Metav Werkzeuge for purchasing or application support — Metav Werkzeuge can advise on insert selection and compatible toolholders for the Walter Tools Tiger·tec Silver series.

Technical data

• Article number: TNMA160412-RK7-WKK10S-WALTER
• SKU: TNMA160412-RK7-WKK10S-WALTER
• Product type: Drehwendeschneidplatte (turning insert)
• Brand: Walter Tools
• Series: Tiger-tec Silver
• Grade: WKK10S
• ISO designation: TNMA160412-RK7 WKK10S

Numbers / Core technical data

• Insert size: 16
• Thickness: 04
• Corner radius: 1.2 mm
• Rake: 0° (negative)
• Tolerance class: M

Designs / Special features

• Coated carbide grade (Tiger·tec Silver)
• Built for cast iron (K)
• RK7 chipbreaker for controlled chips
• Triangle 60° form
• Robust edge for interrupted cuts

FAQ

What materials is this insert intended for? The TNMA160412-RK7 WKK10S insert is designed primarily for cast iron machining; the WKK10S grade and Tiger·tec Silver coating are optimised for abrasive cast materials.

How does the RK7 chipbreaker benefit production? The RK7 chipbreaker promotes short, breakable chips typical of cast iron turning, improving chip evacuation and reducing the risk of entanglement in automatic operations.

What does the 0° negative rake mean for cutting performance? A 0° (negative) rake increases cutting-edge strength and resistance to chipping, which is beneficial for interrupted cuts and when machining cast iron with variable inclusions.

How many edges are available per insert and how does that affect cost-efficiency? The triangular 60° geometry provides three usable edges per insert, offering a straightforward way to extend edge life and lower tooling consumption in serial turning.

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

Protected trademarks and trade names are the property of their respective owners. Mark names are used for explanation only. The offered article is original, brand-new goods from the manufacturer.