SNMG120416-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from the combination of Tiger‑tec Silver coating and an optimised MK5 chipbreaker for productive, consistent cast iron turning; the robust geometry and stable edge life support uninterrupted series production. Order the insert directly via Metav Werkzeuge or consult our technical advisors for application-specific recommendations.

SNMG120416-MK5 WKK20S – indexable turning insert, Tiger‑tec Silver, for cast iron | Walter Tools

The SNMG120416‑MK5 WKK20S is a square 90° indexable turning insert engineered for high‑productivity machining of cast iron, providing stable chip control and reliable wear resistance in demanding production environments.

*Tiger‑tec Silver coated grade WKK20S
*Optimised MK5 chipbreaker for cast iron
*Square 90° form with 1.6 mm corner radius
*Consistent edge life and stable chip control

Maximise throughput on abrasive cast iron

The coated carbide grade WKK20S, part of the Tiger‑tec Silver family, is tailored to the abrasive nature and short, often breaking chips of cast iron. The grade provides enhanced resistance to abrasive wear, which translates into longer tool life and fewer index changes on the machine. For production-oriented workshops this means fewer interruptions and a steadier output rate; the technological focus is on predictable performance under continuous use rather than occasional high‑speed experiments. This grade is therefore a practical choice where repeatable results and reduced downtime are priorities.

Reliable chip control and robust cutting geometry

The combination of the MK5 chipbreaker, a square 90° form and a 1.6 mm corner radius produces controlled chip formation and evacuation when machining cast iron. The insert’s 0° (negative) clearance angle increases edge robustness and helps withstand interrupted cuts or heavy engagement without premature edge failure. These geometric choices support process security and reduce the risk of unexpected tool change‑offs; in practice, fewer surface defects and a more consistent part finish are achieved with the same machining strategy.

Simple application and economical use in series production

Built to ISO designation SNMG120416‑MK5 WKK20S, the insert is compatible with standard clamping systems for square inserts and is suited to high‑volume components that demand repeatability. The tolerance class M ensures consistent fitment across toolholders, while the coated grade means less frequent indexing and lower tooling consumption in the long run. Workshops aiming to streamline tooling inventories will find this insert a pragmatic choice for cast iron turning operations, combining stability and cost‑effective reproducibility.

For tailored advice on integrating Walter Tools Tiger‑tec Silver inserts into production, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for direct technical consultation and ordering support

Technical Data

• SKU: SNMG120416-MK5-WKK20S-WALTER
• Designation: SNMG120416-MK5 WKK20S
• Product type: Indexable turning insert
• Series: Tiger‑tec Silver
• Grade: WKK20S
• Manufacturer: Walter Tools

Specifications

• Insert size: 12
• Form: Square 90°
• Corner radius: 1.6 mm
• Clearance angle: 0° (negative)
• Thickness: 04
• Tolerance class: M

Materials / Special features

• Coating / grade: Tiger‑tec Silver (coated carbide)
• Chipbreaker: MK5
• Suitable for: cast iron
• Material code: K
• Series description: WKK20S optimised for abrasive wear and breaking chips

FAQ

Is this insert suitable for machining stainless steel?
No. The SNMG120416‑MK5 WKK20S grade is optimised for cast iron and its abrasive, short‑chip behaviour; it is not specified for stainless steel applications.

What benefits does the Tiger‑tec Silver coating provide?
The Tiger‑tec Silver coating on the WKK20S grade improves resistance to abrasive wear and supports consistent edge life when turning cast iron, reducing the frequency of index changes.

How does the MK5 chipbreaker behave with cast iron?
The MK5 chipbreaker is designed to produce short, controllable chips in cast iron, improving evacuation and reducing the risk of chip entanglement in series production.

Can the insert handle interrupted cuts?
Yes. The negative 0° clearance angle and robust geometry increase edge strength, making the insert well suited to interrupted or heavy engagement cuts typical in cast iron machining.

Which ISO designation should be ordered for this insert?
Order the insert as SNMG120416‑MK5 WKK20S (Walter Tools), which precisely denotes the geometry, chipbreaker and grade for cast iron turning.

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

The Walter AG (brand presentation: Walter Tools) with headquarters in Tübingen is one of the world’s leading manufacturers of precision tools for metalworking and is part of the Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names are used here only for explanatory purposes. The offered item is an original, factory‑new product of the manufacturer.