EPGT 040102 J740 Wendeplatten - Tungaloy

High cutting-edge stability and a J740 carbide grade deliver consistent results and extended tool life in turning operations; the rhombic form with an 11° clearance ensures secure seating and reliable chip control. Order the EPGT040102 J740 Tungaloy insert directly via Metav Werkzeuge or ask our consultants if needed.

EPGT040102 J740 Rhombic Turning Insert, 75° Cutting Angle — Tungaloy

EPGT040102 J740 is an ISO‑standard rhombic turning insert designed for external and internal turning with an 11° clearance and a single‑sided chipbreaker.

• ISO‑standard rhombic insert, size 04
• J740 Tungaloy grade for wear and edge stability
• Single‑sided chipbreaker, suitable for turning
• Cylindrical hole with 40°–60° countersink

Improved process reliability through standardised compatibility

The insert is built to ISO specification, which means compatibility with a wide range of toolholders is defined by shape, clearance angle, tolerance class, fastening and thickness. This standardisation reduces setup time and minimises the risk of incorrect mounting, providing a predictable machining process. For operations where tool change frequency and repeatability matter, the ISO conformity supports a more efficient inventory strategy and fewer interruptions on the shop floor.

Balanced carbide grade for longer running times and stable edges

The Tungaloy J740 grade combines wear resistance and toughness to give a pragmatic balance between tool life and edge stability. Such a material composition is particularly advantageous when facing mixed production batches or variable clamping conditions, as it resists rapid flank wear while still tolerating intermittent shocks. The result is a steadier surface finish and fewer insert changes, translating into lower machining costs per component and improved uptime.

Geometry and chip control that support safe, productive turning

The rhombic 04 shape with a 75° cutting angle and 11° clearance delivers both accessibility and strength for external and internal turning. The integrated single‑sided chipbreaker actively shapes chips to encourage controlled evacuation, reducing the likelihood of entanglement and enhancing surface integrity. The insert’s cylindrical hole with a one‑sided countersink (40°–60°) ensures reliable clamping and correct seating; this contributes directly to repeatable cutting conditions and consistent part quality.

For guidance on machining parameters with the Tungaloy J740 grade and to arrange supply through Metav Werkzeuge, please contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for prompt consultation and ordering.

Technical Data

• Article number: 6821732
• Manufacturer SKU: TUN6821732
• SKU: 6821732-Tungaloy

Facts

• ISO code: 040102
• Size: 04
• Thickness: 1.59 mm
• Corner radius: 0.2 mm
• Clearance angle: 11°
• Cutting angle: 75°

Design / Special features

• Carbide material
• Tungaloy grade J740
• Rhombic plate form
• Single‑sided chipbreaker
• Cylindrical hole with one‑sided countersink (40°–60°)
• With hole for secure fastening
• ISO‑standard indexable turning plate series
• Intended for external and internal turning

FAQ

What toolholders are compatible with this insert?
Compatibility depends on holder form, clearance angle, tolerance class, fastening method, size and thickness; the EPGT040102 J740 insert fits ISO‑standard holders designed for rhombic 04 plates.

Which materials can be machined with this grade?
The J740 Tungaloy carbide is formulated for a broad material range and gives good wear resistance and edge stability when turning steels and similar workpiece materials.

How does the chipbreaker affect machining?
The single‑sided chipbreaker on this insert improves chip control during turning, promoting safer chip evacuation and thereby supporting consistent surface finish and tool life.

What is the benefit of the 11° clearance angle?
An 11° clearance reduces rubbing behind the cutting edge, lowering cutting forces and helping to protect the insert edge while maintaining adequate strength for general turning tasks.

Can this insert be used for internal turning?
Yes, the rhombic geometry and 75° cutting angle make the insert suitable for both external and internal turning operations when the correct holder is selected.

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.