CNMG 120408 T5105 Wendeplatten - Tungaloy

High wear resistance from the CVD-coated grade and a predictable 0.8 mm corner radius combine to deliver controlled chip formation and long tool life in stable turning operations; the ISO CNMG form and standard hole ensure straightforward integration into existing tool systems. Order the CNMG 120408 T5105 insert directly via Metav Werkzeuge or ask the consultants if needed.

CNMG 120408 T5105 ISO turning insert — CVD-coated carbide, double-sided chipbreaker — Tungaloy

The CNMG 120408 T5105 is an ISO-standard rhombic turning insert designed for high-speed machining of cast iron under stable conditions, offering a robust CVD coating and a double-sided chipbreaker for reliable performance.

• CVD-coated carbide for high-speed turning
• Double-sided chipbreaker for consistent chips
• Rhombic CNMG shape with 80° included angle
• Cylindrical central hole for secure clamping

Long-lasting wear resistance for high-speed cast iron turning

The CVD-coated carbide grade T5105 provides enhanced wear resistance specifically tuned for high-speed machining of cast iron under stable cutting conditions. The chemical vapour deposition layer increases abrasion resistance and helps maintain a stable cutting edge over extended cycles, which reduces downtime for insert changes. In practice, this grade supports efficient batch production where tool life consistency and repeatable performance are priorities, delivering lower process variability and improved production flow.

Predictable chip formation and surface quality from precise geometry

The rhombic CNMG form with its 80° included angle and 0.8 mm corner radius delivers a balanced cutting geometry that supports stable engagement and predictable chip formation. The double-sided chipbreaker promotes controlled chip segmentation, reducing the risk of tangling while improving finish on turned components. The neutral 0° clearance geometry contributes to a forgiving contact behaviour in stable arrangements, helping to maintain consistent surface quality when paired with an appropriate holder and process parameters.

ISO compatibility and secure clamping for easy system integration

As an ISO-standard turning insert the component integrates into typical external holders or boring bars without modification, provided the holder matches form, clearance angle, tolerance class, fastening method, size and thickness. The cylindrical central hole and standard dimensions (plate size 12, thickness 4.76 mm) ensure reliable seating and repeatable clamping. The typical system comprises an ISO insert, a matching external holder or boring bar, a shim/clamp set and replacement screws, enabling straightforward supply of spare parts and simple retrofitting into established tool setups.

Application guidance to maximise economy and process stability

Select the chipbreaker and grade to match workpiece material, rigidity and machining strategy; the T5105 grade is optimised for cast iron in stable setups and is best employed where high cutting speeds and consistent tool support are available. That combination yields a favourable cost-per-part through longer edge life and fewer interruptions for tool changes. For unfamiliar setups, simple trials at conservative parameters will reveal optimum cutting speed and feed that preserve edge life while meeting surface finish requirements.

For reliable high-speed cast iron turning choose the Tungaloy CNMG 120408 T5105 insert—contact Metav Werkzeuge for application advice or to arrange supply; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6850128
• Manufacturer SKU: TUN6850128
• Model series: ISO turning inserts
• Designation: CNMG120408 T5105
• Manufacturer: Tungaloy

Dimensions / Core technical data

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 0.8 mm
• Included angle: 80°
• Clearance angle: 0°
• Hole style: cylindrical central hole

Designs / Special features

• Material: carbide
• Coating / grade: T5105 (CVD-coated)
• Plate form: rhombic (CNMG)
• Chipbreaker: double-sided
• Application: turning (external and internal)
• Typical system components: holder, shim/clamp set, replacement screws
• Recommended use: high-speed machining of cast iron under stable conditions

FAQ

What workpieces is this insert best suited for?
The CNMG 120408 T5105 insert is specified for high-speed machining of cast iron; the CVD-coated T5105 grade and the chipbreaker deliver controlled chips and extended edge life in stable turning operations.

Which geometry and dimensions define this insert?
This rhombic CNMG insert features an 80° included angle, 0.8 mm corner radius, a 4.76 mm plate thickness and a 12 mm size, with a cylindrical central hole for secure clamping.

How does the coating influence performance?
The CVD coating of the T5105 grade increases abrasion resistance and helps preserve the cutting edge during prolonged high-speed cuts, improving process stability and tool life.

Can the insert be used in existing ISO holders?
Yes; as an ISO-standard turning insert the CNMG 120408 form is compatible with holders that match the insert's form, clearance angle, tolerance class, fastening, size and thickness.

What are the recommended system components for safe use?
A complete system typically includes the ISO insert, a compatible external holder or boring bar, a shim/clamp set and replacement screws to ensure correct seating and repeatable clamping.

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.