CCMT 120408 T6215 Wendeplatten - Tungaloy

Benefit from the combination of CVD‑coated cemented carbide and a 0.8 mm corner radius to achieve stable, wear‑resistant turning of stainless steels; order the insert directly via Metav Werkzeuge or consult our specialists for selection and process advice.

CCMT120408 T6215 CCMT 120408 T6215 — Indexable turning insert for turning by Tungaloy

The CCMT120408 T6215 is an ISO‑standard indexable turning insert designed for external and internal turning, delivering consistent edge life for stainless steel applications under stable to lightly interrupted cutting conditions.

• CVD-coated carbide for high wear resistance
• Optimised for stainless steel turning applications
• Rhombic CCMT form with central hole and countersink
• 0.8 mm corner radius for consistent edge strength

Consistent wear life for demanding stainless steel turning

The CCMT120408 T6215 insert combines a CVD coating with a robust cemented carbide substrate to provide extended wear resistance in the machining of stainless steels. A chemical vapour deposition layer reduces abrasive wear and heat‑related edge breakdown, which means longer tool life and fewer indexings. For customers unfamiliar with coatings: CVD creates a dense, adherent hard layer that protects the substrate during high‑temperature contact, improving process stability when turning heat‑sensitive alloys. The single‑sided chipbreaker aids chip control while maintaining a stable cutting edge for repeatable part quality.

Accurate fit and versatile holder compatibility for production reliability

The rhombic insert in CCMT form ensures a predictable cutting geometry and simple seat positioning in standard ISO holders. Key measurable attributes — 12 mm inscribed circle, 4.76 mm thickness, 7° clearance angle and the central hole with one‑sided countersink (40°–60°) — determine compatibility with clamping sets, shims and screws. Choosing the correct holder and tolerance class minimises runout and vibration, which translates directly into improved surface finish and dimensional accuracy. The insert’s geometry supports both roughing and finishing cuts when paired with the appropriate toolholder and machine rigidity.

Stable chip control and surface finish for smoother production flow

The single‑sided chipbreaker and the 0.8 mm corner radius provide a balance between edge strength and surface quality, reducing chatter on medium‑stiff setups and helping to produce consistent component surfaces. Where material adhesion and built‑up edge are a risk, the CVD layer combined with correct machining parameters reduces sticking and burr formation. For process planning, matching the chipbreaker style and grade to feed, depth and alloy ensures efficient swarf evacuation and fewer interruptions during batch production. This results in lower downtime and predictable cycle times for repeat jobs.

For tailored advice on integrating Tungaloy indexable inserts into existing toolholders or for procurement via Metav Werkzeuge, contact our technical sales team at Metav Werkzeuge — eMail: info@metav-werkzeuge.com or Telefon: +49 2822 7131930

Technical data

• • Manufacturer SKU: TUN6903081
• • Internal SKU: 6903081-Tungaloy
• • Item number: 6903081
• • Series: ISO-Drehwendeschneidplatten
• • Material: Hartmetall
• • Grade/coating: T6215
• • ISO designation: CCMT120408
• • Form: rhombic

Specifications

• • Inscribed circle: 12 mm
• • Thickness: 4.76 mm
• • Corner radius: 0.8 mm
• • Clearance angle: 7°
• • Included angle: 80°

Special features

• • CVD-coated cemented carbide substrate
• • Single-sided chipbreaker
• • Central hole with cylindrical bore and one-sided countersink (40°–60°)
• • ISO-standard indexable turning insert
• • Optimised for turning of stainless steels
• • Compatible with appropriate holders, shims and clamping sets

FAQ

What materials is this insert suitable for?
The CCMT120408 T6215 insert is optimised for machining stainless steels and performs well under stable to lightly interrupted turning conditions.

How is the insert secured in the holder?
The insert uses a central hole with a cylindrical bore and a one‑sided countersink; correct clamping with the matching screw and shim ensures repeatable seating and minimal runout.

What does the CVD coating provide in practice?
The CVD coating on this grade enhances abrasion resistance and reduces thermal wear, extending tool life and maintaining edge integrity in demanding stainless steel operations.

Which geometry benefits finishing operations?
The 0.8 mm corner radius delivers a compromise between robustness and surface quality, making it suitable for light finishing passes when machine rigidity is sufficient.

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.