EPGW 040102 DX140 Wendeplatten - Tungaloy

Take advantage of the combination of polycrystalline diamond (PCD) cutting edge, ISO compatibility and a slim, 1.59 mm plate thickness for high-speed, low-wear turning of aluminium and non-ferrous materials; order directly via Metav Werkzeuge or ask their consultants for application support.

EPGW040102-DIA DX140 ISO turning insert (PCD) by Tungaloy — rhombic 04, 11° clearance

EPGW040102-DIA DX140 is an ISO‑standard rhombic turning insert tailored for high‑speed machining of aluminium, non‑ferrous metals and abrasive non‑metal materials.

• Polycrystalline diamond cutting edge for long life
• ISO rhombic 04 format for wide holder compatibility
• 11° clearance angle for positive cutting action
• Cylindrical hole with one-side countersink (40°–60°)

High-speed performance with long tool life

The insert is equipped with a polycrystalline diamond (PCD) cutting edge that delivers exceptional wear resistance in abrasive and non-ferrous workpieces. PCD is a sintered, diamond-based cutting material that maintains a sharp geometry far longer than conventional coatings, which translates into fewer indexings and longer uninterrupted production runs. For operations where surface finish and repeatability matter, the combination of DX140 grade and a carbide substrate ensures consistent results at elevated cutting speeds while reducing downtime for tool changes.

ISO conformity and straightforward clamping for reliable cycles

Manufactured to ISO dimensions and tolerances, the plate is designed to fit standard rhombic holders where compatibility is determined by shape, clearance angle, tolerance class, fastening method, size and thickness. The insert’s cylindrical hole with a one‑side countersink (40°–60°) enables secure mounting and precise seat location, minimising vibration and improving process stability. The ISO standardisation simplifies tool selection and replacement across multiple machines and fixtures, ensuring quick setup and reproducible part quality.

Geometry that improves chip control and surface integrity

The rhombic geometry and DIA chipbreaker promote controlled chip formation when machining ductile non-ferrous alloys and abrasive composites. A 0.2 mm corner radius helps to balance edge strength with a fine surface finish, while the 11° clearance reduces rubbing at the flank and lowers cutting forces. The slim 1.59 mm plate thickness together with the insert’s 75° cutting angle supports accurate dimensional control on fine external and internal turning operations, improving first-pass yield and part conformity.

Substrate and application guidance for process optimisation

Beneath the PCD layer the insert uses a carbide substrate, providing the toughness required for intermittent cuts and slight deflections while the diamond cutting edge resists abrasive wear. The grade is targeted at aluminium, other non‑ferrous metals and abrasive non‑metallic materials, permitting elevated speeds and long tool life where traditional carbide or coated inserts would wear rapidly. For best results, pair the insert with a rigid holder and appropriate coolant strategy, and choose the chipbreaker and grade based on workpiece stability and surface finish requirements.

Contact Metav Werkzeuge for availability and tailored machining advice on the Tungaloy DX140 PCD insert; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6821478
• SKU: 6821478-Tungaloy
• Manufacturer SKU: TUN6821478
• Designation: EPGW040102-DIA DX140
• Series: ISO turning inserts

Facts

• Radius: 0.2 mm
• Clearance angle: 11°
• Thickness: 1.59 mm
• Insert size: 04
• Cutting edge angle: 75°
• Manufacturer article number: 6821478

Special features

• Cutting material: polycrystalline diamond (PCD)
• Substrate: Hartmetall (carbide)
• Shape: rhombic
• Chipbreaker: DIA
• Hole: cylindrical hole with one-side countersink 40°–60°
• Application: Turning; suitable for aluminium, non‑ferrous metals and abrasive non‑metals
• ISO designation: EPGW040102-DIA

FAQ

Which materials is this insert best suited for?
The EPGW040102-DIA DX140 insert by Tungaloy is optimised for aluminium, other non‑ferrous metals and abrasive non‑metallic materials, where the PCD cutting edge provides long life.

What are the benefits of PCD for turning?
Polycrystalline diamond offers superior wear resistance and sharpness retention compared with conventional carbide or coated tools, so the Tungaloy DX140 insert maintains surface finish and tool life at high cutting speeds.

How is the insert secured in the holder?
The insert features a cylindrical hole with a one‑side countersink (40°–60°); compatibility with the holder depends on shape, free angle, tolerance class, fastening and size to ensure a stable seat.

Can this insert be used for internal as well as external turning?
Yes, the ISO rhombic format and geometry are suitable for both external and internal turning operations when paired with the correct holder and tool overhang conditions.

What setup considerations improve performance with this insert?
Use a rigid holder, minimise tool overhang and select chipformer and grade according to workpiece stability; the carbide substrate beneath the PCD edge tolerates slight interruptions while the diamond layer resists abrasive wear.

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.