SNMG 120404 AH120 Wendeplatten - Tungaloy

Benefit from the PVD-coated AH120 grade and a 0.4 mm nose radius for consistently sharp, wear-resistant turning; combine these properties with the ISO form and secure cylindrical hole mounting for stable chip control — order directly via Metav Werkzeuge or consult the specialists for application advice.

SNMG120404 AH120 Turning Insert — PVD-coated carbide, 0.4 mm radius (Tungaloy)

A robust ISO indexable turning insert, SNMG120404 AH120, engineered for stable, sharp-edge performance in general turning operations with secure, hole-mounted clamping.

• PVD-coated carbide for wear resistance
• Sharp cutting edge and process security
• 0.4 mm nose radius for fine finishing
• Square insert with cylindrical hole mounting

High process stability from a wear-resistant grade

The AH120 grade is a PVD-coated carbide developed to deliver consistent wear resistance and a reliable cutting edge in turning operations. The coating reduces flank and crater wear, which helps maintain cutting geometry for longer tool life and fewer indexings. By prioritising process security, the grade minimises unplanned interruptions and supports steady cycle times in production environments.

Controlled chip formation and stable cutting behaviour

Equipped with a double-sided chipbreaker, the insert provides predictable chip control and stable cutting behaviour across a range of turning tasks. The chipbreaker design, paired with the sharp edge of the grade, reduces the risk of built-up edge and sudden chipping, meaning fewer stoppages for clearing or rework. This combination enhances throughput while maintaining component surface quality.

Designed geometry and secure mounting for repeatable results

The insert follows the ISO SNMG120404 form: a square plate with a cylindrical hole and a 0° clearance angle, 12 mm nominal size and a plate thickness of 4.76 mm. The 0.4 mm nose radius supports fine finishing and dimensional consistency at the cutting edge. Secure mounting via the cylindrical hole and appropriate clamping hardware ensures repeatable seating; compatibility with holders depends on form, clearance angle, tolerance class, fastening method, size and thickness.

Practical system advantages and selection guidance

As part of an indexable system the insert is used together with an external holder or boring bar, plus underlay/clamping sets and replacement screws. Selecting the right chipbreaker and the AH120 grade should be guided by workpiece characteristics and machining stability requirements: the aim is a balance between surface finish and tool life. The net result is longer tool life and repeatable performance, reducing setup variability and supporting predictable production output.

For application advice or to secure supply of the Tungaloy SNMG120404 AH120 insert, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 — technical consultants are available to recommend the right holder and clamping components for the machining task.

Technical data

• Article number: 6811952

• Manufacturer SKU: TUN6811952

• SKU: 6811952-Tungaloy

• Model series: ISO-Drehwendeschneidplatten

• Material: Hartmetall

• Grade / coating: AH120 (PVD-coated)

• Designation: SNMG120404

Facts

• Corner radius: 0.4 mm

• Plate thickness: 4.76 mm

• Plate size: 12

• Included hole: with hole (cylindrical)

• Relief / clearance angle: 0°

• Insert angle: 90°

Special features

• Double-sided chipbreaker
• Square plate geometry
• Cylindrical hole for secure mounting
• PVD-coated carbide for wear resistance
• System components: compatible holder or boring bar, underlay/clamping set, replacement screws
• Compatibility determined by form, clearance angle, tolerance class, fastening, size and thickness

FAQ

What distinguishes the AH120 grade from other grades?
The AH120 grade is a PVD-coated carbide designed for turning where a sharp cutting edge and high process security are required; the coating improves wear resistance and edge stability.

How is the SNMG120404 mounted in the toolholder?
The SNMG120404 uses a cylindrical hole and is clamped with the appropriate underlay or clamping set; secure seating ensures repeatable positioning and stable cutting.

Is the insert suitable for fine finishing operations?
Yes — the 0.4 mm nose radius on the insert supports fine finishing and good dimensional control at the cutting edge.

Does the insert provide chip control for different turning tasks?
The double-sided chipbreaker offers predictable chip formation and helps maintain process stability across varied turning conditions.

What determines whether this insert is compatible with a specific holder?
Compatibility is defined by ISO form, clearance angle, tolerance class, fastening style, nominal size and plate thickness; matching these parameters ensures correct fit and function.

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.