CPMT 120408 T5115 Wendeplatten - Tungaloy

High wear resistance and stable cutting-edge behaviour from the CVD-coated carbide T5115 grade ensure long tool life and consistent finish in grooving, parting and plunge turning. The rhombic CPMT120408 geometry with an 80° orientation and a 0.8 mm corner radius provides reliable chip control and secure clamping. Order the CPMT120408 T5115 Tungaloy indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

CPMT 120408 T5115 — CPMT indexable insert for turning (grooving & parting) | Tungaloy

The CPMT120408 T5115 is a CVD-coated carbide indexable insert in the TungCut system, developed for external and internal grooving, parting and plunge turning with a focus on stable chip formation and reproducible production results

• CVD-coated carbide grade T5115
• Universal grade optimised for cast iron
• Rhombic CPMT 120408 shape, 80° angle
• One-sided chipbreaker, 0.8 mm corner radius

Consistent edge life for demanding cast-iron work

The CVD-coated carbide grade T5115 combines high temperature resistance with a balanced hardness-to-toughness ratio, which translates into low flank wear and a steady cutting edge over extended runs. The coating layer reduces adhesion and thermal softening, so cycle times remain stable and regrinds are less frequent. For shops producing components from cast iron, this means fewer interruptions for tool changes and a lower cost per finished part without sacrificing surface quality or dimensional stability.

Precise geometry for reliable chip control and secure clamping

The rhombic CPMT 120408 form with an 80° main face angle and a 0.8 mm corner radius offers a compromise between strength and finishing capability; the small radius supports accurate profiling while resisting chipping at entry points. The insert is supplied with a hole featuring a cylindrical bore plus a single-sided countersink (40°–60°), guaranteeing firm seating in TungCut holders and repeatable clamping torque. The one-sided chipbreaker channels swarf predictably, improving evacuation in both external and internal grooves and reducing the risk of built-up edge that can degrade dimension control.

System advantages that boost throughput and reduce complexity

As part of the TungCut system family, the insert integrates with a choice of holders, blades and clamping elements to match groove width and cutting depth. The universal tuning of this grade simplifies inventory: one insert grade can cover a broad range of cast-iron turning tasks, lowering storage needs and speeding up tool selection. The modular system approach supports fast setup changes and consistent process parameters, which in turn raises productivity and reduces scrap. For operations requiring reproducible results and efficient chip control, this indexable insert is a practical, cost-effective option.

For reliable grooving and parting with Tungaloy quality, choose the CPMT120408 T5115 in the TungCut system and contact Metav Werkzeuge for availability and tailored advice at info@metav-werkzeuge.com or +49 2822 7131930.

Technical Data

• Article number: 6864548
• SKU manufacturer: TUN6864548
• SKU: 6864548-Tungaloy
• Model series: TungCut
• Material: Carbide
• Grade / coating: T5115 (CVD-coated)
• Designation: CPMT120408

Facts

• Corner radius: 0.8 mm
• Clearance angle: 11°
• Main face angle: 80°
• Plate thickness: 4.76 mm
• Plate size: 12

Special features

• Rhombic plate form
• With hole: cylindrical hole + single-sided countersink (40°–60°)
• One-sided chipbreaker
• System family for grooving, parting and plunge turning
• System construction: holders, blades and clamping elements
• Universal grade optimised for cast iron

FAQ

Which turning operations suit this insert best? The CPMT120408 T5115 indexable insert is designed for external and internal grooving, parting and plunge turning within the TungCut system, offering stable performance in those applications.

What materials is this grade intended for? Grade T5115 is a universal CVD-coated carbide developed specifically for machining cast iron, balancing wear resistance and cutting-edge stability for consistent results.

How does the insert secure to the holder? The plate is supplied with a cylindrical hole and a single-sided countersink (40°–60°) to ensure reliable seating in TungCut holders; the geometry supports repeatable clamping and positional accuracy.

What benefits does the 0.8 mm corner radius provide? A 0.8 mm corner radius increases edge strength while still allowing decent surface finish; it reduces the likelihood of chipping at interrupted cuts and aids dimensional control during grooving and parting.

How does the CVD coating influence performance? The CVD-coated carbide surface on this insert improves thermal stability and wear resistance, which extends tool life and maintains cutting performance over longer production runs

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.