SNMG 120408 AH120 Wendeplatten - Tungaloy

Take advantage of the combination of PVD‑coated carbide AH120, a 0.8 mm corner radius and ISO compatibility to ensure sharp cutting performance and high process security in turning operations; order the SNMG 120408 AH120 insert directly via Metav Werkzeuge or consult our technical team for application guidance.

SNMG 120408 AH120 ISO turning insert — PVD‑coated carbide, 0.8 mm radius (Tungaloy)

SNMG 120408 AH120 is an ISO‑standard insert for external and internal turning, engineered for stable cutting performance where a sharp cutting edge and machining reliability are required

• PVD‑coated carbide grade AH120
• Corner radius 0.8 mm
• Double‑sided chipbreaker
• ISO SNMG 120408, 90° square insert

Precision and process security for consistent turning

The insert combines a PVD‑coated carbide body with the wear‑resistant AH120 grade to deliver a balance of longevity and edge integrity. The coating enhances surface hardness and reduces adhesion at the cutting edge, which translates into reduced flank wear and more predictable tool life. For machining processes where repeatable component quality and minimal downtime are priorities, this geometry supports a sharp cutting edge and consistent chip formation, helping to maintain dimensional accuracy across series production runs.

Optimised geometry for reliable chip control

An ISO‑conforming, 90° square configuration together with a double‑sided chipbreaker ensures controlled chip flow and versatile orientation options. The 0° clearance angle and 0.8 mm corner radius reduce radial forces while preserving corner strength; the result is improved stability during shoulder cuts and finishing passes. The presence of a cylindrical hole permits secure clamping in compatible holders, supporting repeatable seating and torque transmission. In practice, correct selection of the insert form and chipbreaker leads to fewer interruptions and more efficient cycle times.

Clear guidance on system compatibility and setup

Compatibility with a toolholder depends on the insert’s form, clearance angle, tolerance class, fastening method, size and thickness; this insert is designed to fit standard SNMG seatings when matched with the appropriate external holder or boring bar. The recommended system comprises the ISO insert, a matching outer holder or boring bar, the correct support plate or clamp set, and replacement screws for secure assembly. Specifying the holder that matches the insert’s square form and 4.76 mm thickness ensures correct clamping pressure and repeatable positioning for high‑precision turning.

Application strengths and handling advice

This turning grade is suited to operations that demand a balance between edge sharpness and resistance to chipping. The AH120 grade is tailored to maintain a robust cutting edge under conditions that would otherwise promote micro‑chipping, making it a practical choice for varied production tasks. For best results, select a chipbreaker and cutting parameters aligned to the workpiece material and rigidity of the machine setup; modest feeds with appropriate cutting speeds will leverage the insert’s wear properties while preserving surface finish and component tolerances.

For machining tasks that require a dependable, wear‑resistant turning insert, contact Metav Werkzeuge to source the Tungaloy SNMG 120408 AH120 and obtain tailored application advice via info@metav-werkzeuge.com or by phone on +49 2822 7131930.

Technical data

• Article number: 6814569
• Manufacturer SKU: TUN6814569
• Seller SKU: 6814569-Tungaloy
• Model series: ISO turning inserts
• Designation: SNMG120408
• Grade: AH120

Facts

• Corner radius: 0.8 mm
• Insert size: 12 mm
• Thickness: 4.76 mm
• Relief/clearance angle: 0°
• Insert angle: 90°

Special features

• PVD‑coated cemented carbide
• Double‑sided chipbreaker
• Square insert with cylindrical hole
• ISO‑standard geometry for holder compatibility
• Suitable for external and internal turning operations

FAQ

What is the primary advantage of the AH120 grade?
The AH120 grade provides a wear‑resistant, chip‑secure cutting edge; the Tungaloy SNMG 120408 AH120 insert combines this grade with a PVD coating to enhance tool life and machining stability.

Which holders fit the SNMG 120408 insert?
Holders that accept ISO SNMG inserts with a 90° square seat, compatible clamp sets and the corresponding screw pattern will fit; holder selection must match the insert form, thickness and tolerance class.

How does the double‑sided chipbreaker affect performance?
The double‑sided chipbreaker offers consistent chip control and allows the insert to be indexed; this supports uninterrupted production and helps maintain surface finish quality under varying cutting conditions.

Is the insert suitable for finishing passes?
Yes — the 0.8 mm corner radius and sharp edge geometry make the insert appropriate for finishing when combined with appropriate feeds and cutting speeds, delivering good surface integrity and dimensional control.

What spare parts are recommended for assembly?
A matching support plate or clamp set and replacement screws are recommended to ensure secure seating and repeatable positioning of the insert during tool changes.

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.