SNMA120412-RK7 WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver wear resistance, precise RK7 chip control and a robust 90° square form for consistent, productive cast iron turning; order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

SNMA120412-RK7, SNMA120412-RK7 WKK10S, WKK10S — Indexable turning insert for cast iron (Walter Tools)

The SNMA120412-RK7 WKK10S is an indexable turning insert engineered for productive turning of cast iron, combining a coated carbide grade from the Tiger·tec Silver family with a tailored chipbreaker for stable, repeatable performance.

• Tiger·tec Silver coating for long tool life
• Optimised for cast iron machining
• Square 90° form with 1.2 mm corner radius
• Negative 0° rake for stable cutting

Increased productivity through coating and grade selection

The combination of Tiger·tec Silver technology and the WKK10S grade provides a balance of wear resistance and toughness specifically tuned for cast iron (ISO K). This coated carbide construction reduces flank and crater wear under typical cast iron cutting conditions, which leads to fewer index changes and higher effective throughput. The coated carbide surface also supports higher cutting speeds compared with uncoated grades, so cycle times can be reduced while maintaining consistent edge life and component quality.

Controlled chip formation and process reliability

The RK7 chipbreaker is designed to produce short, easily manageable chips when machining abrasive cast iron materials; this improves chip evacuation and reduces the risk of surface blemishes. The negative 0° rake and 90° square geometry give a robust cutting edge that resists deflection and edge chipping, while the 1.2 mm corner radius enhances edge strength for interrupted cuts and heavy engagement. Together these features contribute to process reliability, making the tool well suited to both stable and semi-stable turning operations.

Practical benefits for workshop integration

In production environments the insert’s geometry and grade support repeatable surface finishes and consistent dimensional control. The square 90° shape allows up to four cutting edges per indexable insert, optimising tool economy and reducing tooling inventory needs. Improved surface finish and predictable tool life lower the frequency of downstream rework and inspection, enabling machining cells to run longer between tooling interventions and increasing overall plant efficiency.

Application notes and handling recommendations

This indexable insert is intended primarily for machining cast iron materials as indicated by its material designation; it is not specified here for austenitic stainless or unalloyed steels. The coded thickness and designation identify the insert form and fitment; for parameter tuning, select cutting speeds and feeds aligned with the shop’s machining strategy and cooling method. For further parameter advice or to confirm suitability for specific cast iron grades, please contact our technical team — personalised guidance can reduce trial cycles and accelerate process stabilisation.

For tailored advice on Walter Tools inserts such as the SNMA120412-RK7 WKK10S and to arrange supply, contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• SKU: SNMA120412-RK7-WKK10S-WALTER
• Label: Drehwendeschneidplatte SNMA120412-RK7 WKK10S Walter Tools
• Manufacturer: Walter Tools
• Product type: Drehwendeschneidplatte
• Designation: SNMA120412-RK7
• ISO designation: SNMA120412-RK7 WKK10S

Facts

• Size: 12
• Corner radius: 1.2 mm
• Rake angle: 0° (negative)
• Thickness: 04
• Tolerance class: M
• Form: Quadrat 90°

Special features

• Grade: WKK10S
• Series: Tiger·tec Silver
• Chipbreaker: RK7
• Material group: K (cast iron)
• Cast iron application: yes
• Execution: A

FAQ

What materials is this insert suitable for?
The SNMA120412-RK7 WKK10S insert from Walter Tools is formulated for cast iron machining (ISO K), offering optimised wear behaviour and chip control for abrasive grey and nodular cast irons.

How does the RK7 chipbreaker affect machining?
The RK7 chipbreaker on this indexable insert promotes short, controlled chips in cast iron, improving evacuation and reducing risks of surface damage during turning operations.

What are the geometric highlights to consider for setup?
The insert features a 90° square form with a 1.2 mm corner radius and a negative 0° rake, which together provide a robust cutting edge suited to heavy cuts and interrupted machining.

Is the SNMA120412-RK7 WKK10S suitable for automated production lines?
Yes, the coated Tiger·tec Silver grade and square geometry support repeatable edge life and multiple reindexes, making the insert well suited to automated, high-throughput turning cells.

Where to get cutting data and application support?
For application-specific cutting data and process optimisation for the SNMA120412-RK7 WKK10S, Metav Werkzeuge can provide technical support and recommendations to reduce trial time and ensure stable machining.

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

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