CNMG 120408 T9215 Wendeplatten - Tungaloy

Take advantage of the CVD-coated carbide T9215 for high wear resistance and fracture toughness, combined with a 0.8 mm nose radius for accurate profile control; order directly via Metav Werkzeuge or consult our specialists for application matching.

CNMG 120408 T9215 turning insert by Tungaloy — CVD-coated carbide, 0.8 mm nose radius

The CNMG120408 T9215 Tungaloy insert is an ISO-standard rhombic turning insert designed for external and internal turning, optimised for medium steel machining.

• CVD-coated carbide for high wear resistance
• Optimised for medium steel turning
• 0.8 mm nose radius for precise profiling
• ISO compatibility with cylindrical hole for secure clamping

Consistent productivity with CVD-coated carbide

The supplied ISO rhombic insert combines a CVD-coated surface on a carbide substrate to deliver elevated wear resistance and good fracture tolerance, making it well suited to demanding turning tasks in medium steel. This material and coating combination extends tool life under continuous and lightly interrupted cuts, reducing downtime and contributing to a stable production output. The specified grade is engineered for productive machining while maintaining edge integrity, so machining cycles remain predictable and efficient.

Secure seating and fast indexation for reduced setup time

Built to ISO dimensions, the rhombic geometry with an 80° insert angle and a cylindrical hole ensures reliable clamping in compatible holders and boring bars. The insert thickness of 4.76 mm and the standard size facilitate interchangeability across ISO holders; the 0° relief contributes to consistent contact with the toolholder, improving vibration damping. As a result, changeovers and indexing are straightforward and reproducible, lowering setup time and helping to maintain surface quality over repeated cycles.

Practical guidance for application and surface control

The double-sided chipbreaker and indexable design permit multiple cutting positions, keeping running costs down by extending usable life per insert. The 0.8 mm nose radius balances profile accuracy and edge strength: a larger radius smooths surfaces and boosts edge robustness, while a smaller radius sharpens detail. Select a chipbreaker and feed that suit the workpiece stability and the machining strategy; this insert excels in external and internal turning when paired with an appropriate external holder or boring bar plus clamp and replacement screws. For best results, choose cutting data aligned with continuous to light interrupted cuts and ensure holder rigidity to exploit the grade’s advantages.

For tailored advice on the Tungaloy T9215 grade, stock availability or application-specific recommendations, contact Metav Werkzeuge at +49 2822 7131930 or info@metav-werkzeuge.com for prompt assistance.

Technical data

• Article number: 6775272
• Manufacturer SKU: TUN6775272
• Our SKU: 6775272-Tungaloy
• Designation: CNMG120408
• Grade: T9215
• Material: Carbide (CVD-coated)

Core specifications

• Size: 12
• Thickness: 4.76 mm
• Nose radius: 0.8 mm
• Insert angle: 80°
• Relief (free) angle: 0°
• Hole: with cylindrical hole

Materials & special features

• Rhombic insert form
• Double-sided chipbreaker
• ISO-standard turning insert
• Recommended for medium steel
• Suitable for continuous to light interrupted cuts

FAQ

What materials is this insert intended for?
The CNMG120408 T9215 Tungaloy insert is optimised for medium steel applications and is designed to combine wear resistance with fracture toughness for productive turning.

Can this insert be used for internal turning or boring operations?
Yes; when mounted in a suitable boring bar or internal holder that matches ISO dimensions, the CNMG120408 insert can be used for internal turning, provided the holder offers sufficient rigidity.

What does the 0° relief angle mean in practice?
A 0° relief provides minimal clearance behind the cutting edge, which stabilises the insert contact with the holder and can improve vibration damping, resulting in a more consistent cutting edge engagement.

Is the insert indexable and how does the double-sided chipbreaker help?
The insert is indexable and features a double-sided chipbreaker, allowing rotation to fresh cutting positions. This extends usable life per insert and supports repeatable chip control across multiple edges.

How does the 0.8 mm nose radius affect surface finish and strength?
A 0.8 mm nose radius offers a balance between surface quality and edge robustness: it helps produce a finer finish than larger radii while providing more edge strength than very small radii, making it suitable for many finishing and semi-finishing passes.

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.