CNMG 190612 KS20 Wendeplatten - Tungaloy

A combination of KS20 wear resistance, 1.2 mm corner radius and ISO CNMG geometry delivers consistent turning performance and long tool life; the rhombic design with a cylindrical hole ensures secure clamping and reliable chip control. Order the insert directly via Metav Werkzeuge or contact our consultants for tailored machining advice.

CNMG 190612 KS20 Turning insert — Tungaloy

The CNMG190612 KS20 Tungaloy insert is an ISO rhombic, double-sided indexable insert designed for general turning applications, offering robust edge stability and optimised chip control in ISO-based tool systems.

• CNMG190612 rhombic ISO geometry
• KS20 grade for wear and edge stability
• 1.2 mm corner radius for durable cutting edge
• Double-sided chipbreaker with cylindrical hole

Dependable cutting performance for repetitive turning tasks

The KS20 grade, developed by Tungaloy, combines wear resistance and toughness to maintain a sharp cutting edge under continuous operation. This indexable carbide solution provides stable tool life, which reduces interruptions for tool changes and supports a steady production rhythm. The rhombic CNMG geometry and 80° included angle enable secure engagement on external and internal turning operations, while the 1.2 mm corner radius balances edge strength with achievable surface finish.

Reduced setup time through standardised ISO compatibility

Designed to ISO standards, the insert’s form, relief angle (0°), tolerance class, fastening arrangement and plate thickness determine holder compatibility. The standardised dimensions—19 mm size and 6.35 mm thickness—ensure predictable fitment in compatible external holders or boring bars. This compatibility minimises trial-and-error in tool selection and speeds up changeovers; as part of a system concept, the insert works with a matching seat/clamp set and replacement screws for secure fixation.

Effective chip control and process stability

The double-sided chipbreaker is engineered to provide consistent chip formation across a range of turning conditions. By stabilising chip flow, the insert lowers the risk of built-up edge and improves surface quality. The cylindrical hole supports reliable clamping and repeatable indexing, so the productive cutting geometry is restored quickly when the insert is rotated or replaced. For manufacturers seeking steady cycle times, this translates into fewer rejects and higher throughput.

Practical system approach and economical operation

This ISO insert is intended for use in an indexable insert system comprising an external holder or boring bar, underlay/clamp set and spare fixing screws. The ability to index both sides of the insert doubles usable cutting edges, enhancing cost-effectiveness over single-edge tools. The carbide composition and Tungaloy material selection help extend runtimes, making the solution suitable where predictable tool life and reduced tooling costs are priorities.

For technical guidance on selecting the right Tungaloy turning grade or to order CNMG190612 KS20 inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6802293
• Manufacturer SKU: TUN6802293
• Supplier SKU: 6802293-Tungaloy
• Designation: CNMG190612 KS20
• Model series: ISO-Drehwendeschneidplatten
• Material: carbide

Core specifications

• Corner radius: 1.2 mm
• Plate thickness: 6.35 mm
• Plate size: 19 mm
• Included angle: 80°
• Relief angle: 0°

Design & features

• Rhombic plate form (CNMG)
• Double-sided chipbreaker
• Cylindrical hole (with hole)
• ISO-compatible turning insert
• Tungaloy KS20 grade
• Intended application: turning
• System concept: holder or boring bar, underlay/clamp set, replacement screws

FAQ

What is the corner radius of the CNMG190612 KS20 insert?
The CNMG190612 KS20 insert features a 1.2 mm corner radius for robust edge strength and consistent surface finish.

Which machining operations suit this insert?
This Tungaloy CNMG insert is intended for turning operations, covering both external and internal turning when used in an appropriate holder or boring bar.

Is the insert indexable on both sides?
Yes, the insert is double-sided with a chipbreaker on each face, allowing rotation to a fresh cutting edge and improving cost efficiency.

What material is the insert made from and what grade is used?
The insert is manufactured from carbide and supplied in Tungaloy’s KS20 grade, optimised for wear resistance and cutting-edge stability.

How does the cylindrical hole affect mounting?
The cylindrical hole provides secure, repeatable clamping in standard ISO tool seats, supporting stable cutting and straightforward indexing.

Manufacturer/Responsible: Tungaloy-NTK Germany GmbH, Katzbergstraße 3a, 40764 Langenfeld - Protected trademarks and product names are the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The item offered is an original, brand-new product from the manufacturer.