CCMT 09T312 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD‑coated carbide AH725, ISO conformity and a 1.2 mm corner radius for stable, predictable turning results. Order the CCMT09T312 AH725 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if further machining advice is required.

CCMT 09T312 AH725 — ISO turning insert for external and internal turning (Tungaloy)

The CCMT 09T312 AH725 is an ISO‑standard, rhombic turning insert engineered for reliable external and internal turning where consistent chip control and process security are required.

• PVD-coated carbide AH725
• Universal, crack‑resistant grade for steel
• Rhombic 80° geometry with 1.2 mm radius
• Single-sided chipbreaker, with centre hole

Consistent performance for mixed-material turning

The combination of a PVD‑coated carbide substrate and the AH725 grade delivers a balance of wear resistance and fracture toughness suited to variable workshop conditions. This universal grade was developed for applications that switch between steel and stainless steel, offering stable chip formation and extended edge life under interrupted cuts. The coating reduces built-up edge and improves surface finish, while the core carbide supports repeated regrinds and predictable tool life. Such properties translate into fewer tool changes and higher uptime on medium‑duty turning operations.

Secure clamping geometry for reproducible results

The rhombic 80° geometry and a 1.2 mm corner radius provide a robust contact area that reduces vibration in small‑to‑medium tooling set‑ups. The ISO specification ensures interchangeability with holders that match form, relief angle, tolerance class, fixation and thickness; the insert’s 7° relief angle and 3.97 mm thickness enable straightforward seating in standard CCMT pockets. A cylindrical hole with a single‑side countersink (40°–60°) secures the insert centrally, while the single‑sided chipbreaker manages chips on a wide range of feeds. These characteristics contribute to reproducible surface quality and consistent cycle times on both external and internal turning.

Practical selection and machining advice for dependable results

For tasks requiring process security—small‑diameter turning, mixed batches or light interrupted cuts—choose the chipbreaker and grade to match workpiece stability and feed rate rather than maximum cutting speed. The AH725 grade is particularly suitable where a combination of toughness and edge integrity is needed; pairing this with the correct holder and clamping set avoids instability. When optimising a turning process, consider spindle power, tool overhang and coolant strategy: the right setup amplifies the insert’s advantages in chip control and edge life, reducing rework and increasing productivity.

For tailored recommendations on genuine Tungaloy CCMT 09T312 AH725 turning inserts and assistance with holder compatibility, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• Article number: 6856700
• Manufacturer SKU: TUN6856700
• SKU: 6856700-Tungaloy
• Model series: ISO turning inserts
• Designation: CCMT09T312 AH725
• Material: carbide
• Coating: PVD

Facts

• Size: 09
• Thickness: 3.97 mm
• Included angle: 80°
• Relief angle: 7°
• Corner radius: 1.2 mm
• Hole style: cylindrical hole with single‑side countersink (40°–60°)

Special features

• Rhombic insert shape
• Single‑sided chipbreaker
• Universal, crack‑resistant grade for steel and stainless steel
• Centre hole for positive clamping
• Typical application: external and internal turning

FAQ

Is this insert suitable for stainless steel machining?
Yes. The CCMT09T312 AH725 Tungaloy insert is designed as a universal, crack‑resistant grade particularly effective for both steel and stainless steel machining.

Which holders are compatible with this insert?
Compatibility depends on holder form, relief angle, tolerance class, fixation and thickness; the insert follows ISO CCMT standards for use with matching rhombic turning holders.

What advantage does the PVD coating offer?
The PVD coating on the AH725 grade reduces built‑up edge and wear, improving surface finish and extending edge life in mixed‑material turning tasks.

How does the single‑sided chipbreaker affect performance?
The single‑sided chipbreaker provides controlled chip formation over a range of feeds, which helps maintain stable cutting forces and predictable surface quality.

Can the insert be used for interrupted cuts and small tools?
Yes. The AH725 grade’s fracture resistance and the insert’s robust geometry make it suitable for interrupted cuts and smaller‑scale turning operations where process security is important.

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.