CNMG 120412 T505 Wendeplatten - Tungaloy

Benefit from economical cast-iron machining and the durability of a CVD-coated carbide T505 grade combined with the ISO CNMG form and an 80° approach angle for stable turning; order the CNMG120412 T505 directly via Metav Werkzeuge or consult our advisors for tailored application support.

CNMG120412 T505 ISO turning insert, CVD-coated carbide, 80° – Tungaloy

A CNMG120412 T505 insert designed for ISO-standard turning, optimised for economical and productive machining of cast iron.

• ISO rhombic insert, 80° main cutting edge
• CVD-coated carbide grade T505
• Double-sided chipbreaker for stability
• Cylindrical hole for standard clamping

Longer tool life and predictable performance for cast iron work

The combination of CVD-coated carbide and T505 grade provides a balance between wear resistance and edge toughness, making this insert well suited to economic machining of cast iron. The coating reduces flank wear and helps maintain a consistent cutting edge at elevated temperatures, which lengthens service intervals and lowers tooling costs per component. By choosing this grade, workshops achieve higher uptime and a more reliable process window when turning grey or ductile cast iron.

Stable geometry that fits standard ISO CNMG holders

The rhombic ISO CNMG geometry with an 80° approach angle and a 1.2 mm nose radius offers a compromise between strength and surface finish. The 4.76 mm thickness and 12 mm inscribed circle ensure mechanical rigidity in many external and internal turning setups. The insert is supplied with a cylindrical hole, enabling secure clamping in conventional toolholders; compatibility depends on form, relief angle, tolerance class, fastening method, size and thickness. The ISO standardisation simplifies tool selection and reduces inventory complexity.

Controlled chip formation and process security for productive turning

A double-sided chipbreaker promotes reliable chip control and repeatable cutting behaviour, especially in interrupted or semi-continuous cuts. This geometry assists in breaking chips into manageable segments, reducing rework and improving operator safety. The insert’s features support higher material removal rates in stable setups while maintaining acceptable surface quality. For applications where stability varies, selecting the appropriate chipbreaker and adjusting cutting parameters will further increase productivity and extend insert life.

Contact Metav Werkzeuge for application-matched sets of original Tungaloy CNMG120412 T505 inserts and practical advice on optimal chipbreakers, feeds and cutting speeds.

Technical data

• Article number: 6793660
• SKU: 6793660-Tungaloy
• Manufacturer SKU: TUN6793660
• Brand: Tungaloy
• Model series: ISO turning inserts

Facts

• Nose radius: 1.2 mm
• Approach angle: 80°
• Thickness: 4.76 mm
• Inscribed circle: 12 mm

Special features

• Carbide, CVD-coated
• Grade T505
• Double-sided chipbreaker
• Rhombic plate form
• With cylindrical hole
• Suitable for turning (external and internal)
• Intended for cast iron machining

FAQ

What materials is this insert intended for?
The CNMG120412 T505 insert is designed primarily for machining cast iron; the T505 grade and CVD coating support economical removal and stable edge life in cast-iron applications.

How does the ISO CNMG form affect holder compatibility?
Compatibility is determined by the CNMG form, relief angle, tolerance class, fastening method, size and thickness; the CNMG120412 follows ISO dimensions to fit standard CNMG holders.

What advantage does the 1.2 mm nose radius provide?
A 1.2 mm nose radius balances edge strength and surface finish, enabling moderate feeds with improved tip robustness for turning operations.

Is the insert indexed or reversible?
The insert is double-sided with a chipbreaker on each effective edge, allowing indexing to present a fresh cutting edge and thus prolonging usable life.

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.