CCMT 120408 AH725 Wendeplatten - Tungaloy

Benefit from a PVD-coated AH725 grade and the proven CCMT geometry: this combination delivers consistent chip control and reliable performance when turning Stahl and rostfreier Stahl. The 0.8 mm nose radius and ISO-standard form ensure stable surface finish and repeatable results; order the insert directly via Metav Werkzeuge or ask our consultants if needed.

CCMT 120408 AH725 — Tungaloy turning insert (ISO CCMT, 0.8 mm radius)

CCMT120408 AH725 is an ISO-standard turning insert designed for versatile external and internal turning applications, offering a universal, break-resistant grade for demanding production environments.

• PVD-coated AH725 for process reliability
• ISO CCMT geometry for versatile turning
• 0.8 mm nose radius for medium finishing
• Cylindrical hole with single-sided countersink

Consistent cutting performance for mixed production

The insert combines a PVD surface treatment with the AH725 carbide grade to deliver consistent cutting behaviour across varying batch conditions. The coated cemented carbide substrate provides wear resistance and improved edge stability, which reduces tool-change frequency and supports continuous machining. With the CCMT geometry and a 0.8 mm corner radius, the component offers a compromise between strength and finish quality, making it suitable for medium finishing and general-purpose turning of Stahl and rostfreier Stahl.

Secure clamping and ISO compatibility for process stability

Manufactured to ISO dimensions, the rhombic insert fits standard holders defined by form, relief, tolerance class, fixation, size and thickness. The 7° relief and the matched hole style — a cylindrical hole with a single-sided countersink (40°–60°) — facilitate stable clamping and repeatable seating. This results in reduced vibration and more predictable tool life, which is especially valuable when processing mixed materials or when smaller tooling is required.

Grade and chip control explained for reliable results

The AH725 grade is a universal, break-resistant option developed for robust performance on Stahl and rostfreier Stahl. The single-sided chipbreaker geometry supports controlled chip formation under varying cutting conditions, lowering the risk of built-up edge and facilitating safe chip evacuation. For users less familiar with grade codes: AH725 denotes a PVD-coated carbide optimised for process security and broad material coverage, balancing wear resistance and toughness.

Practical application and selection advice

For external and internal turning, choose holders and clamping systems that match the ISO CCMT form, thickness 4.76 mm and plate size 12 mm to ensure correct seating. The rhombic shape with the specified hole configuration allows flexible indexing and easy replacement. When switching between roughing and finishing, consider the corner radius and cutting data to maintain surface quality and extend tool life; the combination of geometry and coating in this insert aims to reduce downtime while keeping component tolerances consistent.

Contact Metav Werkzeuge today for tailored advice on the CCMT 120408 AH725 insert, delivery options and application recommendations — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6864952
• Manufacturer SKU: TUN6864952
• SKU: 6864952-Tungaloy
• Model series: ISO turning inserts
• Designation: CCMT120408

Numbers

• Radius: 0.8 mm
• Included angle: 80°
• Relief angle: 7°
• Thickness: 4.76 mm
• Size: 12 mm

Special features

• Grade/coating: AH725 (PVD-coated)
• Material: carbide
• Insert form: rhombic
• Chipbreaker: one-sided
• Hole: cylindrical hole + single-sided countersink (40°–60°)
• Application: turning

FAQ

What materials is this insert suited for?
The CCMT120408 AH725 insert is designed for machining Stahl and rostfreier Stahl, offering broad applicability where mixed-material batches and process security are required.

How does the AH725 grade affect machining?
AH725 is a PVD-coated carbide grade that improves edge stability and wear resistance; the grade helps the insert maintain performance under varying cutting conditions and supports consistent chip control.

What does the hole style mean for clamping?
The cylindrical hole with a single-sided countersink (40°–60°) provides secure axial and radial location in compatible holders, ensuring reliable seating and reduced vibration during turning operations.

Is the geometry suitable for finishing passes?
With a 0.8 mm nose radius and CCMT form, the insert offers a balance between strength and surface quality, making it suitable for medium finishing; finer radii may be preferred for high-precision mirror finishes.

Which model identifiers should be noted when ordering?
Order using the designation CCMT120408 AH725 and the article number 6864952 or SKU 6864952-Tungaloy to ensure the correct ISO CCMT insert and grade are supplied.

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.