VBMT 160404 AH6225 PS Wendeplatten - Tungaloy

Take advantage of a universally applicable, PVD-coated carbide grade and a stable cutting geometry for reliable mid-range turning operations on rostfreier Stahl; compatibility with ISO toolholders keeps inventory lean and changeovers fast. Order directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

VBMT 160404 AH6225 – ISO turning insert, PS chipbreaker | Tungaloy

VBMT160404-PS AH6225 is a rhombic ISO turning insert designed for external and internal turning tasks, optimised for rostfreier Stahl and variable machining conditions.

• PVD-coated carbide for rostfreier Stahl machining
• Rhombic VBMT 16 form with 0.4 mm corner radius
• Cylindrical hole with single-side countersink 40°–60°
• Stable cutting edge for medium machining conditions

Consistent edge performance for rostfreier Stahl

The insert’s AH6225 grade combines a PVD coating with a Hartmetall substrate to deliver a sharp, yet stable cutting edge under varying process conditions. This balance reduces flank wear and postpones edge breakdown during interrupted cuts or unstable setups. For component families made from rostfreier Stahl, the coating improves heat resistance and adhesion control, which supports higher material removal rates without sacrificing repeatability. The choice of a PS chipbreaker promotes predictable chip formation and easier evacuation, reducing rework and downtime.

Precise form factor and secure clamping for accuracy

Produced to ISO dimensions, the VBMT160404-PS form guarantees interchangeability with compliant clamping systems; fit is determined by form, free angle and tolerance class as well as size and thickness. The rhombic 16 mm outline and 4.76 mm thickness provide a rigid contact face, while the 0.4 mm corner radius maintains profile fidelity on chamfers and shoulders. The insert includes a cylindrical hole with single-side countersink (40°–60°), enabling reliable fastening and repeatable orientation when used with matching shims and screws. A 5° clearance angle and a 35° lead angle are incorporated for controlled cutting geometry and improved surface finish.

Practical machining benefits and selection guidance

This grade is intended as a universal solution for rostfreier Stahl in medium cutting regimes, where operators require a predictable tool life and consistent surface quality. Selecting the PS chipbreaker and AH6225 grade helps to control long, stringy chips and to avoid built-up edge formation, which is common on rostfreier Stahl. Where higher stability and finish are required, pairing the insert with a rigid holder and optimised cutting data will deliver measurable productivity gains. The insert’s robust edge reduces the frequency of index changes, lowering handling time and promoting efficient batch processing.

System integration and serviceability in the workshop

The insert forms part of a standard ISO system: insert, matching external holder or boring bar, underlay/clamp set and spare screws. Replacement is straightforward and designed to minimise setup interruption; spare screws and support plates are the only consumables required for reclamping. Because compatibility depends on multiple geometric parameters, verification of holder form and tolerance class is recommended prior to installation. When integrated correctly, the solution offers process reliability and simplified stock management across multiple turning applications.

Contact Metav Werkzeuge for tailored recommendations on Tungaloy turning inserts and to discuss compatible holders and cutting data; reach us at info@metav-werkzeuge.com or +49 2822 7131930 for prompt technical support and ordering.

Technical data

• Article number: 6831894

• Manufacturer SKU: TUN6831894

• Model designation: VBMT160404-PS AH6225

• Shape: rhombic (VBMT)

• Hole: with hole; cylindrical hole + single-side countersink (40°–60°)

Numbers / Core technical data

• Size: 16 mm

• Thickness: 4.76 mm

• Corner radius: 0.4 mm

• Clearance angle: 5°

• Lead/approach angle: 35°

Special features / Versions

• Carbide material: Hartmetall
• Coating / grade: AH6225 (PVD-coated)
• Chipbreaker: PS
• Typical application: external and internal turning
• System components: insert, holder/boring bar, underlay/clamp set, replacement screws

FAQ

What materials is this insert suited for?
The AH6225 grade insert is formulated primarily for rostfreier Stahl; the combination of PVD coating and Hartmetall substrate gives good performance under the typical demands of stainless turning.

How does the PS chipbreaker affect chip control?
The PS chipbreaker promotes controlled chip formation for medium-cutting conditions and reduces the risk of long, entangling chips when machining rostfreier Stahl.

Is the insert compatible with standard ISO VBMT holders?
Yes, the insert follows ISO geometry for the VBMT form; compatibility is confirmed by matching form, free angle, tolerance class, fastening method, size and thickness with the chosen holder.

What is the significance of the 0.4 mm corner radius?
A 0.4 mm radius provides a compromise between edge strength and profile accuracy—suitable for general turning and for maintaining part geometry on shoulders and fillets.

Which system parts should be kept in stock for quick changeovers?
Keep matching holders or boring bars, underlay/clamp sets and spare screws available; these are the standard items required to replace and secure the insert quickly.

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.