SNMA120416-RK7 WKK10S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, WKK10S carbide grade and reliable RK7 chip control for stable, productive machining of cast iron; order via Metav Werkzeuge or consult the specialists for application-specific cutting data.

SNMA120416-RK7 WKK10S turning indexable insert — 90° square, 0° negative rake (Walter Tools)

The SNMA120416-RK7 WKK10S is a 90° square indexable insert optimised for turning operations in cast iron, offering a coated carbide grade from the Tiger·tec Silver series for abrasion resistance and consistent tool life.

• Tiger·tec Silver coating for abrasive cast iron
• Optimised chip control with RK7 chipbreaker
• 90° square geometry for robust turning
• Corner radius 1.6 mm for stable cutting

High-performance machining for abrasive cast iron

The combination of the WKK10S grade and the Tiger·tec Silver coating provides a balance between wear resistance and toughness that is tailored to abrasive cast iron materials. The coated carbide construction resists abrasive wear common in grey and nodular cast irons, which leads to more consistent cutting performance and longer tool life. The insert’s 0° negative rake geometry increases edge robustness and reduces the risk of chipping under interrupted cuts, making it suitable for demanding turning tasks where stability is paramount. By choosing a grade and coating designed specifically for cast iron, production reliability and process capability are strengthened, reducing unscheduled tool changes and improving output consistency.

Predictable chip control and improved surface stability

The RK7 chipbreaker is designed to produce short, controllable chips when machining cast iron, reducing the likelihood of entanglement and improving chip evacuation. The 90° square format combined with a 1.6 mm corner radius delivers a strong cutting edge that tolerates heavy engagement and provides dimensional stability for external turning operations. These features translate into reproducible surface quality and fewer interruptions during bar feed or batch production runs. The insert’s geometry supports steady machining feeds and helps maintain toolholder stiffness, which benefits surface finish and reduces vibration in medium-duty turning.

Practical integration into existing tool systems

Designed to fit standard SNMA-style tool pockets, the insert is offered in a compact 12 mm size with thickness code 04 and tolerance class M, enabling straightforward replacement in many common turning toolholders. The coated grade and chipbreaker combination is particularly suited for short-breaking chips typical of cast irons, so machine setup can focus on optimising cutting data rather than compensating for erratic chip behaviour. Where higher process reliability is required, pairing this insert with stable clamping, correct seat geometry and consistent coolant application will leverage the Tiger·tec Silver advantages and deliver productive, repeatable results across batches.

Contact Metav Werkzeuge for tailored application advice, availability and material-specific recommendations for the SNMA120416-RK7 WKK10S insert — phone +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• SKU: SNMA120416-RK7-WKK10S-WALTER
• Part number: SNMA120416-RK7 WKK10S
• Product type: Turning indexable insert
• Brand: Walter Tools
• Series: Tiger·tec Silver
• Grade: WKK10S
• Execution: A
• Tolerance class: M
• Chipbreaker: RK7

Facts

• Corner radius: 1.6 mm
• Insert size: 12 mm
• Plate form: Square 90°
• Rake angle: 0° (negative)
• Thickness code: 04

Special features

• Coating: Tiger·tec Silver (coated carbide)
• Material suitability: Cast iron
• Geometry: Negative rake for robust edge
• Compatibility: SNMA pocket style
• Chip control: RK7 chipbreaker

FAQ

Which materials is this insert primarily intended for?
The SNMA120416-RK7 WKK10S insert is primarily intended for machining cast iron, with the WKK10S grade and Tiger·tec Silver coating optimised for abrasive cast iron conditions.

How does the RK7 chipbreaker affect machining?
The RK7 chipbreaker produces short, controllable chips when turning cast iron, which improves chip evacuation and reduces interruptions during production with the SNMA120416-RK7 insert.

What is the significance of the WKK10S grade?
WKK10S is a Walter carbide grade within the Tiger·tec Silver family that balances wear resistance and toughness for reliable performance when machining cast-iron components.

Can this insert be used for interrupted cuts?
Yes, the negative 0° rake geometry and 1.6 mm corner radius make the insert robust and suitable for operations with interruptions or varying engagement.

Which toolholder pocket fits this insert?
The insert has SNMA-style dimensions (SNMA120416-RK7) and is intended for compatible SNMA toolholders offering secure clamping and correct seat geometry.

Hersteller: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany. Protected trademarks and trade names remain the property of their respective owners. Brand names and protected marks are mentioned for explanatory purposes only and do not imply any affiliation with our company. The offered article is an original, brand-new product from the manufacturer.