DCMT 070204 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of process security, versatile PVD-coated carbide grade and ISO compatibility to maintain stable, repeatable turning operations; order directly via Metav Werkzeuge or consult our specialists for tool selection and availability.

DCMT 070204 AH725 turning insert — Tungaloy

A DCMT070204 AH725 turning insert for ISO-standard external and internal turning, offering a universal, breakage-resistant grade for steel and stainless steels.

• PVD-coated carbide grade AH725
• ISO-standard rhombic 55° geometry
• One-sided chipbreaker with cylindrical hole
• 0.4 mm corner radius for precision finishing

Process-stable cutting with a universal PVD-coated grade

The AH725 grade is a PVD-coated carbide designed for broad steel and stainless steel machining where process security matters. With a universal composition and breakout-resistant microstructure, this insert reduces the risk of premature edge chipping in mixed-material production runs. The result is consistent tool life and fewer unscheduled tool changes, which supports predictable cycle times and reduces downstream rework. For small cutter assemblies or operations with frequently changing workpiece materials, the combination of coating and substrate yields a practical balance between wear resistance and toughness.

ISO compatibility and straightforward holder selection

The insert follows the ISO DCMT 070204 specification, so holder compatibility is determined by the insert form, clearance angle, tolerance class, clamping method, size and thickness. Matching the insert to a suitable external holder or boring bar and the correct shim/clamp arrangement ensures secure seating and repeatable positioning. This standardisation simplifies procurement and inventory management, as ISO-compliant holders and replacement screws fit reliably, reducing setup time and the risk of incorrect mounting that could affect dimensional accuracy.

Geometry engineered for precision and surface quality

The rhombic 55° geometry with a 0.4 mm corner radius and 7° clearance offers an efficient balance between cutting edge strength and access to confined features. The one-sided chipbreaker promotes predictable chip formation during turning, while the cylindrical hole with one-sided countersink (40°–60°) ensures secure clamping and accurate seat location. A plate thickness of 2.38 mm contributes to stability in light to medium-duty turning, delivering improved surface finishes and reduced vibration on shorter overhangs.

Practical system considerations and benefits

As part of an ISO insert system, the complete setup comprises the insert, a matching external holder or boring bar, a shim/clamp set and replacement screws. Selecting the correct chipbreaker and the AH725 grade according to workpiece material and machining stability reduces scrap rates and supports higher first-pass yields. The compact geometry and proven material combination make this insert especially suitable for job shops and production lines that require both flexibility and repeatable quality.

For dependable turning performance with Tungaloy’s AH725 grade, contact Metav Werkzeuge for expert advice and available stock at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6864888
• Manufacturer SKU: TUN6864888
• Label / SKU: 6864888-Tungaloy

Core specifications

• Shape: rhombic, 55°
• Size: 07
• ISO designation: 070204
• Corner radius: 0.4 mm
• Clearance angle: 7°
• Thickness: 2.38 mm
• Hole: cylindrical hole + one-sided countersink (40°–60°)

Features and materials

• Material: carbide
• Coating: PVD-coated
• Grade / sort: AH725
• Chipbreaker: one-sided
• Typical application: turning
• System components: ISO insert, matching external holder/boring bar, shim/clamp, replacement screws

FAQ

What materials is this insert suitable for?
The DCMT070204 AH725 Tungaloy turning insert is formulated for machining steel and stainless steels and performs well where material types vary during production.

Which holders are compatible with this insert?
Holders that accept ISO DCMT 070204 inserts—matched by form, relief angle, tolerance and clamping method—are compatible; ensure the external holder or boring bar matches the insert size and thickness.

How does the AH725 grade affect tool life?
The PVD-coated AH725 grade provides a balanced combination of wear resistance and toughness, improving process security and extending productive cutting life under mixed-material conditions.

Can the insert be used for both external and internal turning?
Yes, the insert’s rhombic 55° geometry and 0.4 mm corner radius make it suitable for both external and internal turning tasks where the chosen holder allows proper access.

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.