TNMG 160408 KS20 Wendeplatten - Tungaloy

Taking advantage of ISO compatibility, the KS20 Tungaloy grade and a 0.8 mm nose radius delivers a balanced combination of wear resistance, edge stability and predictable finishing performance for external and internal turning. Order the insert directly via Metav Werkzeuge or consult the technical team for application-specific recommendations.

TNMG160408 KS20 Tungaloy turning insert — ISO triangular carbide insert, 0.8 mm radius

The TNMG160408 KS20 is an ISO‑standard triangular indexable insert intended for external and internal turning, offering a tailored mix of durability and cutting‑edge stability for general turning operations

• ISO‑standard triangular insert for ISO holders
• KS20 grade — wear‑resistant, stable cutting edge
• 0.8 mm nose radius for precise finishing
• Double‑sided chipbreaker for economical use
• Cylindrical hole mounting, 60° included angle

Secure fit and reduced set‑up time through ISO conformity

Compatibility is ensured by the ISO-standard geometry: form, free angle, tolerance class, fixation, size and thickness determine fitment with the chosen holder. Specifying an ISO‑conforming triangular insert simplifies tool inventory and reduces set‑up time, as holders and spare parts from different manufacturers remain interchangeable. For production environments this leads to predictable clamping behaviour and lower machine downtime, while tolerance‑controlled seating reduces the risk of indexing errors during reassembly.

Grade and substrate engineered for longer tool life

The KS20 grade on a carbide substrate provides a targeted balance between wear resistance and toughness, optimised for general turning. This material combination supports stable cutting edges under varying flank and crater wear conditions, which translates to fewer interruptions for insert changes and a more consistent surface finish on serial parts. The Tungaloy‑developed grade is intended to complement the insert geometry so that abrasion and chipping tendencies are minimised during standard roughing and finishing passes.

Geometry and chip control for efficient operations

A 0.8 mm nose radius and a 60° included angle deliver a compromise between edge strength and fine surface generation, making the insert suitable for controlled finishing as well as light roughing. The double‑sided chipbreaker increases economic efficiency by offering two cutting edges per index, and the cylindrical hole with secure fixation ensures repeatable clamping accuracy. Together, these features improve chip formation and evacuation, reduce cutting forces in many applications and help maintain consistent cycle times on both external and internal turning operations.

Practical system guidance and recommended use

The insert is intended to be used as part of a system: the ISO insert, a matching external holder or boring bar, an underlay/shim and a secure clamping set with replacement screws. Choice of chipbreaker variant and grade should be matched to workpiece material, machining strategy and machine rigidity to achieve optimal results. For workshops seeking to standardise tooling, the insert offers a robust baseline for a wide range of turning tasks while allowing fine tuning of parameters for specific steels and non‑ferrous alloys.

Contact Metav Werkzeuge for tailored cutting data, holder matching and availability of the KS20 Tungaloy insert; technical consultants are ready to advise by phone or email and to recommend the optimal system combination

Technical data

• Article number: 6808478
• Manufacturer SKU: TUN6808478
• SKU: 6808478-Tungaloy
• Model designation: TNMG160408
• Brand: Tungaloy

Core measurements

• Insert size: 16 mm
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Included angle: 60°
• Clearance (free) angle: 0°
• Hole type: cylindrical

Features and applications

• Material: carbide
• Grade: KS20
• Plate shape: triangular
• Chipbreaker: double‑sided
• Mounting: with hole
• Intended application: turning
• System components: insert + holder/boring bar + shim + clamping set + screws

FAQ

What machining tasks suit this insert best? The TNMG160408 KS20 insert is designed for external and internal turning, offering a good compromise between wear resistance and edge stability for general turning tasks.

How does the KS20 grade affect tool life? The KS20 Tungaloy grade provides enhanced wear resistance and toughness, which helps to prolong insert life and maintain a consistent surface finish under typical turning conditions.

Can the insert be used in any ISO holder? The insert follows ISO geometry so compatibility is determined by holder form, free angle, tolerance class, fixation, size and thickness; matching those parameters ensures correct fit.

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.