CNMG 120412 T505 Wendeplatten - Tungaloy

Benefit from the combination of cost-efficient CVD-coated carbide, a double-sided chipbreaker and ISO compatibility to improve throughput in cast iron turning; order availability and expert advice are offered via Metav Werkzeuge.

CNMG 120412 T505 — Tungaloy indexable insert for turning, CVD-coated carbide

The CNMG 120412 T505 is an ISO rhombic indexable insert designed for economical turning, optimised for cast iron machining with 0° relief and an 80° included angle

• CVD-coated carbide for consistent wear resistance
• Optimised for economical cast iron turning
• Double-sided chipbreaker for reliable chip control
• ISO rhombic 80° form with cylindrical hole

Higher productivity through optimised grade and chip control

The CVD-coated carbide grade T505 delivers a balance of tool life and cutting economy when machining cast iron; the coating reduces flank wear and supports stable cutting at practical feeds and speeds. Combined with a double-sided chipbreaker, this geometry promotes consistent chip control and reduces downtime for rework. The design aims to lower overall machining cost per component by extending the interval between index changes and maintaining surface integrity, making it a pragmatic choice for medium- to high-volume turning operations.

Predictable compatibility and straightforward assembly

Designed to ISO specifications, the insert matches common holder systems when form, relief angle, tolerance class, fastening and thickness align. The rhombic 80° shape with a cylindrical mounting hole and a 1.2 mm corner radius enables straightforward seating in standard indexable holders, while the nominal thickness of 4.76 mm provides robust clamping stability. In practice, the system comprises the indexable insert, a compatible outer holder or boring bar, a shim or clamp set and replacement screws — a modular approach that simplifies tool management on the shop floor and eases repeatable setup.

Process stability and selection guidance for reliable results

For reliable machining results, select the chipbreaker and T505 grade according to workpiece stability, interrupted cuts and desired cutting speeds. The rhombic insert supports both external and internal turning when paired with a suitable holder; its 0° relief angle is particularly useful for certain finishing and semi-finishing operations on cast iron. Production engineers benefit from the insert’s repeatable performance and the option to optimise cutting data for component geometry, which together improve throughput and reduce scrap rates while maintaining consistent surface quality.

Request application advice or stock confirmation from Metav Werkzeuge to specify the CNMG 120412 T505 for current turning tasks — contact info@metav-werkzeuge.com or call +49 2822 7131930 for immediate assistance

Technical data

• Article number: 6793656-Tungaloy
• Manufacturer SKU: TUN6793656
• Model series: ISO turning indexable inserts
• Material: Carbide

Facts

• Size: 12 mm
• Thickness: 4.76 mm
• Corner radius: 1.2 mm
• Included angle: 80°
• Relief angle: 0°

Special features

• Grade: T505 (CVD-coated carbide)
• Double-sided chipbreaker
• Rhombic plate shape (CNMG)
• With cylindrical mounting hole
• Application: Turning, especially cast iron
• ISO designation: CNMG120412
• Compatible with standard ISO holders

FAQ

Which materials is this insert suited for? The CNMG 120412 T505 indexable insert from Tungaloy is optimised for economical machining of cast iron; the CVD-coated carbide grade supports consistent wear behaviour for typical grey and nodular cast irons.

How is holder compatibility determined? Compatibility is established by insert form, relief angle, tolerance class, fastening method, size and thickness; matching these parameters ensures correct seating of the CNMG 120412 T505 in standard ISO holders.

Is the insert reversible and what is the benefit? Yes — the insert is double-sided, allowing both cutting edges to be used; this increases the number of available cutting edges per insert and improves cost-efficiency in production.

What does the 0° relief angle mean for machining? A 0° relief provides a neutral clearance suited to many turning operations; when combined with the rhombic 80° geometry, it offers a stable cutting edge for finishing and semi-finishing on cast iron.

What system components are required for use? A complete system typically includes the indexable insert, a matched outer holder or boring bar, an appropriate shim or clamp set and replacement screws to secure the insert reliably.

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.