CCMT 09T308 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated AH725 grade, a versatile 0.8 mm corner radius, and ISO compatibility for consistent, productive turning operations; order directly via Metav Werkzeuge or consult the team for application support.

CCMT 09T308 AH725 turning insert by Tungaloy — PVD-coated carbide, 0.8 mm radius

CCMT09T308 AH725 is a rhombic ISO turning insert designed for reliable external and internal turning in mixed steel work; compatible with standard holders and engineered for secure clamping and stable chip control.

• CCMT09T308 rhombic insert, ISO standard
• PVD-coated AH725, universal for steel and stainless
• 0.8 mm corner radius for stable cutting action
• Hole with 40°–60° single-sided countersink

Consistent wear resistance and secure cutting with PVD-coated grade

The PVD-coated AH725 grade combines a wear-resistant carbide substrate with a hard, thin coating to deliver extended tool life under diverse turning conditions. This composition is designed to keep the cutting edge stable when machining steel and stainless steel, reducing flank wear and preserving geometry over longer tool paths. The benefit for production is twofold: fewer insert changes and a more consistent surface finish, which supports tighter tolerances and reduces rework. For operations that alternate between materials or use smaller tooling, the AH725 grade provides a balance of toughness and abrasion resistance that maintains process reliability.

ISO compatibility and secure mounting for uninterrupted runs

The rhombic plate is produced to ISO specifications, so compatibility with appropriate turning holders is determined by form, relief angle, tolerance class, clamping design, size and plate thickness. The combination of a 7° relief angle and an 80° included angle ensures predictable cutting engagement and reduced tool vibration when the insert is correctly seated. The plate’s cylindrical hole with single-sided countersink (40°–60°) facilitates reliable screw clamping in standard seat designs. As a result, set-up times are minimised and mechanical repeatability is improved, supporting continuous, long-cycle production where fixture stability is essential.

Process benefits: chip control, edge strength and application guidance

A 0.8 mm corner radius provides a robust cutting edge that promotes edge strength and improved surface integrity on external profiles and shoulder faces. The single-sided chipbreaker helps to manage chips during turning, lowering the risk of built-up edge and keeping evacuation predictable. Typical uses include both external and internal turning where a compromise between edge strength and surface finish is required. Selection of the correct chipbreaker and the AH725 grade for the prevailing material and machining stability will result in higher process security and consistent part quality.

Contact Metav Werkzeuge for tailored advice on using the Tungaloy CCMT09T308 AH725 turning insert and to arrange supply or cutting trials through Metav Werkzeuge.

Technical data

• Article number: 6856765
• SKU: 6856765-Tungaloy
• Manufacturer SKU: TUN6856765
• Brand: Tungaloy
• Product designation: CCMT09T308 AH725

Facts

• Plate size: 09
• Plate thickness: 3.97 mm
• Corner radius: 0.8 mm
• Relief angle: 7°
• Included angle: 80°

Special features

• PVD-coated carbide, grade AH725
• Rhombic plate, ISO turning insert series
• Single-sided chipbreaker
• Cylindrical hole with 40°–60° single-sided countersink
• Suitable for turning steel and stainless steel
• Designed for external and internal turning

FAQ

Which materials is this insert suitable for?
The CCMT09T308 AH725 insert by Tungaloy is formulated for machining steel and stainless steel, offering a versatile balance of toughness and wear resistance for mixed-material production.

What is the corner radius and how does it affect the result?
The insert features a 0.8 mm corner radius, which strengthens the cutting edge and improves surface finish while offering a degree of robustness for profile and shoulder turning.

How is the insert clamped in the holder?
Clamping is achieved via the cylindrical hole with a single-sided countersink (40°–60°), compatible with commonly used screw-clamp holders for ISO rhombic plates.

Can this insert be used for both external and internal turning?
Yes, the CCMT09T308 AH725 is designed for both external and internal turning operations when matched with a suitable holder and the correct chipbreaker for the task.

What advantages does the AH725 grade provide over uncoated grades?
The AH725 PVD coating improves abrasion resistance and maintains the cutting-edge geometry longer than uncoated grades, resulting in fewer indexings and enhanced process stability.

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.