VBMT 160402 AH725 Wendeplatten - Tungaloy

Take advantage of a robust combination of PVD-coated carbide and ISO-standard geometry for reliable turning performance across steel and stainless applications; the universal, crack-resistant AH725 grade reduces unexpected edge failure while maintaining good tool life. Request further specification checks or order the insert directly via Metav Werkzeuge or consult their specialists for machining advice.

VBMT 160402 AH725 – ISO turning insert, PVD-coated carbide, Tungaloy

The VBMT160402-PS AH725 is an ISO-standard rhombic turning insert designed for external and internal turning, providing a universal, chip-resistant carbide grade tailored to steel and stainless applications.

• ISO rhombic insert VBMT 160402
• PVD-coated AH725 for steel and stainless
• Crack-resistant chipbreaker PS
• 0.2 mm corner radius for fine finishes

Reliable machining where material variety matters

The AH725 cutting grade is a PVD-coated carbide developed for universal use with both steel and stainless steel, providing stable chip formation and reliable edge strength under varying conditions. Its balanced coating and substrate combination reduce the risk of premature flank wear and chipping, which translates into fewer unplanned tool changes and more consistent cycle times. For operations that switch between different steels or run smaller-diameter tools, this grade offers high process security without the need for constant parameter shifts.

Geometry engineered for dimensional accuracy and surface quality

The rhombic ISO geometry and a 0.2 mm corner radius support precise contouring and controlled cutting forces, helping to maintain tolerance bands on turned components. The insert’s 35° cutting angle and 5° relief are selected to balance cutting-edge strength with the capacity to generate fine surface finishes. Where explanations are helpful: a smaller corner radius like 0.2 mm reduces radial cutting engagement, which benefits finishing passes by lowering cutting forces and smoothing irregularities on the workpiece.

System compatibility and mounting considerations

This insert conforms to ISO dimensions and is supplied with a central hole and a cylindrical hole plus a single-side countersink (40°–60°), ensuring secure clamping in compatible holders and boring bars. When integrating into a tooling system, match the insert’s form, relief angle, tolerance class, and thickness (4.76 mm) with the corresponding external holder or drillable bar to guarantee proper seating and repeatable indexability. Simple checks—correct seat contact, screw torque, and chipbreaker orientation—are sufficient to ensure stable operation.

Practical advantages for production workflows

Choosing this PVD-coated grade reduces disruptions: its chip-resistant PS chipbreaker aids in breaking and evacuating chips during turning, especially in interrupted cuts or variable feeds. The insert’s universal character reduces the need for multiple grades on the toolboard, which simplifies inventory and setup times. For operators seeking predictable results, the combination of coating, substrate and geometry offers both the economy of fewer tool changes and the reproducibility required in batch production.

For machining projects that demand dependable performance from a universal turning insert, contact Metav Werkzeuge for ordering and technical advice — Metav Werkzeuge can confirm holder compatibility and recommend cutting parameters to match the application. Email: info@metav-werkzeuge.com / Phone: +49 2822 7131930

Technical data

• Article number: 6856688
• Manufacturer SKU: TUN6856688
• Label/SKU: 6856688-Tungaloy
• Model series: ISO-Drehwendeschneidplatten
• Application: Turning
• Manufacturer article number: 6856688

Core dimensions

• ISO designation: 160402
• Insert designation: VBMT160402-PS
• Insert size: 16 mm
• Thickness: 4.76 mm
• Corner radius: 0.2 mm
• Relief angle: 5°
• Cutting angle: 35°
• Hole: with hole
• Hole style: cylindrical hole + one-side countersink (40°–60°)

Features & materials

• Material: carbide
• Coating / grade: AH725 (PVD-coated)
• Chipbreaker: PS
• Insert shape: rhombic
• Typical use: external and internal turning
• Suitability: steel and stainless steel

FAQ

What materials is this insert suitable for?
The AH725 grade is intended for machining steel and stainless steel, offering stable chip formation and good resistance to edge breakage across those materials.

Which insert geometry does the VBMT160402-PS provide?
The insert features a rhombic shape with a 0.2 mm corner radius, 5° relief and a 35° cutting angle, optimised for accurate external and internal turning.

How does the PS chipbreaker affect machining?
The PS chipbreaker promotes controlled chip segmentation, improving evacuation during turning and reducing the risk of built-up edge or entanglement in variable-feed operations.

What clamping and holder checks are recommended?
Ensure the holder matches the ISO form, thickness and tolerance of the insert, verify correct seating and apply the manufacturer’s recommended screw torque for repeatable indexability.

Is coolant required when using this PVD-coated grade?
Coolant choice depends on the component and process; AH725 is robust under a range of cutting conditions, but coolant or appropriate cutting fluids can improve thermal control and chip evacuation for demanding operations.

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.