CNMG 120402 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide grade AH6225, stable cutting geometry and ISO conformity for reliable turning of stainless steel and similar materials. Order the CNMG 120402 AH6225 insert directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

CNMG 120402 AH6225 indexable turning insert for Turning by Tungaloy

CNMG 120402 AH6225 is an ISO-standard rhombic indexable insert designed for external and internal turning, offering a sharp yet robust cutting edge optimised for stainless steel.

• ISO-standard rhombic insert
• PVD-coated carbide grade AH6225
• 0° relief angle for steady cutting

Consistent performance for mixed machining conditions

The ISO-standard rhombic geometry delivers predictable cutting behaviour across a wide range of turning tasks. The PVD-coated carbide composition provides a balance of wear resistance and edge toughness, making it suitable for medium cutting conditions and variable tool engagement. With an 80° cutting angle and corner radius 0.2 mm, the insert maintains dimensional stability while producing consistent chip formation. The hard-faced coating reduces adhesion and improves edge life when machining stainless steel, helping to maintain cycle times and part quality.

Practical benefits of the AH6225 grade

The AH6225 grade is engineered as a universal solution for stainless steels, offering a sharp yet durable cutting edge that copes with interrupted cuts and varying process conditions. This composition supports a stable cutting edge under moderate cutting parameters and helps to avoid built-up edge formation commonly encountered with stainless materials. The double-sided chipbreaker design contributes to repeatable chip control, which reduces vibration and aids in achieving the required surface finish with fewer reworks.

Compatibility and mounting guidance

The insert is ISO-specification compliant and compatibility with a toolholder depends on form, relief angle, tolerance class, mounting method, size and thickness. The insert features a cylindrical hole for secure clamping and is supplied in the rhombic shape with a thickness of 4.76 mm and a nominal size of 12 mm, facilitating straightforward replacement in standard CNMG seats. The 0° relief angle ensures a full-face contact geometry in many holder designs, promoting rigidity during external turning and light internal operations.

Application scenarios and process advice

This grade and geometry are particularly effective for general-purpose turning of stainless steel in job-shop and production environments where flexibility and repeatable results are required. Choose the AH6225 variant when a combination of edge sharpness and toughness is needed rather than aggressive high-speed removal. For best results, match the insert to a suitable holder and adjust feeds and speeds to the workpiece condition; the PVD-coated carbide surface helps reduce friction and extends tool life during sustained cycles.

For reliable supply and technical guidance on the CNMG 120402 AH6225 insert from Tungaloy, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 for availability and machining recommendations.

Technical data

• Manufacturer article number: 6950908
• Manufacturer SKU: TUN6950908
• SKU: 6950908-Tungaloy
• Designation: CNMG120402 AH6225

Key dimensions

• Corner radius: 0.2 mm
• Plate size: 12 mm
• Thickness: 4.76 mm
• Cutting angle: 80°
• Relief angle: 0°

Features and materials

• Material: carbide
• Coating/grade: AH6225 (PVD-coated)
• Plate shape: rhombic
• Mounting: with hole
• Hole style: cylindrical hole
• Chipbreaker: double-sided
• Application: Turning

FAQ

What materials is this insert best suited to machine? The CNMG 120402 AH6225 insert is specified for stainless steel and similar alloys; the AH6225 PVD-coated carbide provides balanced wear resistance and cutting edge stability for these materials.

Is the insert compatible with standard CNMG holders? Compatibility is determined by ISO form, relief angle, tolerance and thickness; the CNMG 120402 AH6225 follows ISO dimensions and fits standard CNMG toolholders that accept rhombic inserts with a cylindrical hole.

How does the AH6225 coating affect tool life? The AH6225 PVD coating enhances resistance to adhesion and wear on stainless steel, extending edge life under moderate cutting conditions and improving process consistency.

Is the insert reversible or single-use per side? The CNMG geometry is double-sided and designed to be indexed for additional cutting edges; the double-sided chipbreaker supports repeated use while maintaining chip control.

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.