TNMG 220408 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of process security, wear-resistant PVD coating (AH120) and a compact indexable format for reliable turning cycles; order the TNMG220408 AH120 insert via Metav Werkzeuge or consult our team for application advice.

TNMG220408 AH120 indexable insert for turning — Tungaloy, PVD-coated carbide, 60° geometry

TNMG220408 AH120 delivers a robust, PVD-coated carbide option for general turning applications where a sharp cutting edge and high process reliability are required.

• PVD-coated grade AH120
• Carbide for high wear resistance
• Double-sided chipbreaker
• 0.8 mm corner radius

Predictable tool life through a wear-resistant grade

The PVD-coated AH120 grade combines a hard surface layer with a tough carbide substrate to resist flank wear and reduce edge chipping under fluctuating cutting forces. This results in more predictable tool life and fewer unscheduled indexings, which supports higher machine uptime and lower indirect costs. The coating technology also helps maintain a sharp cutting edge, improving dimensional stability across longer batches and making the insert suitable where consistent part quality is essential.

Accurate engagement and repeatable clamping for reliable turning results

The triangular TNMG geometry with a 60° cutting angle and a 0.8 mm corner radius balances strength and surface finish. The insert’s cylindrical hole and ISO-compatible dimensions enable repeatable seating in standard holders; compatibility depends on holder shape, clearance angle, tolerance class, fastening and thickness. For machinists seeking consistent results, this design reduces micro-movement at the cutting zone and supports steady chip formation when the correct chipbreaker and grade are selected.

Efficient inventory and simple indexing reduce process interruptions

A double-sided chipbreaker means more usable edges per insert, lowering tooling consumption and decreasing tool change frequency. The compact TNMG format is quick to index and easy to store, supporting lean tool management. The insert is delivered as part of an ISO-standard system consisting of the insert, a matching external holder or boring bar, clamping pad or set and replacement screws, so integrating it into existing toolsets is straightforward and economically efficient.

Contact Metav Werkzeuge for tailored cutting data and to discuss the Tungaloy TNMG220408 AH120 for specific turning tasks — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6808619
• Manufacturer SKU: TUN6808619
• Brand: Tungaloy
• Model series: ISO turning indexable inserts
• Application: Turning

Core data

• Corner radius: 0.8 mm
• Insert size: 22 mm
• Thickness: 4.76 mm
• Cutting angle: 60°
• Rake angle: 0°
• Manufacturer article no.: 6808619

Special features

• PVD-coated carbide AH120
• Triangular insert (TNMG)
• Double-sided chipbreaker
• Cylindrical hole for secure fixing
• ISO-compatible dimensions

FAQ

What applications suit this TNMG insert best?
The TNMG220408 AH120 Tungaloy indexable insert is intended for external and internal turning where a sharp cutting edge and stable process behaviour are required; the correct chipbreaker and grade should be chosen according to material, cutting conditions and machine stability.

How is the insert secured in the holder?
The insert uses a cylindrical hole and ISO-standard seating; secure clamping depends on correct holder geometry, clearance angle, tolerance and fastening, as indicated in the product’s system description.

How many indexable edges are available with this design?
A triangular, double-sided insert typically provides up to six indexable edges; the TNMG220408 AH120 insert follows this principle, allowing several repositions before disposal.

What does the 0.8 mm corner radius mean for part quality?
A 0.8 mm radius offers a compromise between cutting-edge strength and surface finish, supporting moderate roughing and semi-finishing operations while reducing the risk of edge breakage.

Can this insert be used with existing ISO holders?
Compatibility is determined by form, relief angle, tolerance class, fastening, size and thickness; the TNMG220408 AH120 is designed to fit ISO-standard holders that match these parameters.

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.