DCMT 070204 GH730 Wendeplatten - Tungaloy

Take advantage of the combination of GH730 wear resistance, a rhombic 07 form and precise 7° clearance for stable turning results; order directly via Metav Werkzeuge or consult our technical advisors for application-specific recommendations.

DCMT070204 GH730 indexable insert for turning — rhombic 07, 7° clearance (Tungaloy)

A DCMT070204 GH730 indexable insert designed for ISO-compliant external and internal turning, offering a balance of wear resistance and edge stability for a wide range of turning operations.

• ISO rhombic insert size 07
• GH730 carbide grade for wear resistance
• 7° clearance for stable cutting
• Cylindrical hole with 40°–60° countersink

Consistent cutting performance that boosts productivity

The combination of the GH730 cutting grade with the carbide substrate provides a predictable, long-lasting cutting edge suitable for productive turning. The rhombic 07 geometry ensures accessible cutting corners for both external and internal operations, while the 7° clearance reduces rubbing and promotes effective chip evacuation. This results in steadier feeds and reduced downtime due to fewer insert changes, supporting higher throughput on repetitive turning cycles.

Improved edge life and wear control for machining stability

The grade's formulation emphasises controlled wear and edge resilience, which is particularly beneficial when facing mixed batch compositions or varying feed rates. The integrated single-sided chipbreaker helps form consistent chips and reduces thermal load on the cutting edge, extending service intervals. Users will notice a more constant surface finish and predictable tool life, minimising process variation and the need for frequent parameter adjustments.

Secure mounting and versatile compatibility with ISO holders

Designed according to ISO specifications, the insert features a cylindrical hole with a one-sided countersink (40°–60°), enabling reliable clamping in standard external holders and boring bars. With a 2.38 mm thickness and 0.4 mm corner radius, the component fits common ISO tool systems and allows selection of the right seat, clamp and screw combination for optimal stability. Compatibility depends on form, tolerance class, size and thickness, so select the corresponding holder geometry for a secure fit and repeatable performance.

Choose the GH730 grade for balanced wear resistance and edge stability and contact Metav Werkzeuge to discuss the DCMT070204 insert and suitable holders — eMail: info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6820980

• Manufacturer SKU: TUN6820980

• Our SKU: 6820980-Tungaloy

• Designation: DCMT070204

• Grade: GH730

• Material: Carbide

• Model series: ISO turning indexable inserts

• Shape: Rhombic

• Size: 07

• Thickness: 2.38 mm

• Hole: Cylindrical hole with one-sided countersink (40°–60°)

Facts

• Corner radius: 0.4 mm

• Clearance angle: 7°

• Wedge/relief angle: 55°

• Intended application: Turning

• Chipbreaker: Single-sided

Special features

• Tungaloy cutting grade GH730

• Carbide substrate for wear resistance

• Compatible with ISO holders and boring bars

• Suitable for external and internal turning operations

• System: insert + holder + clamp set + replacement screws

FAQ

Is this insert compatible with standard ISO turning holders?
Compatibility is governed by insert form, size, thickness, tolerance class and fixing; the DCMT070204 GH730 insert is manufactured to ISO dimensions and is suitable for standard ISO external holders and boring bars when matched with the correct clamp and screw.

Which materials can be machined with this grade?
The GH730 grade offers balanced wear resistance and toughness, making the insert well suited to general turning tasks across a broad range of steels and alloyed materials; selection of chipbreaker and machining parameters should be adjusted according to the workpiece material.

What is the purpose of the cylindrical hole and countersink?
The cylindrical hole with a one-sided countersink (40°–60°) secures the insert in the pocket and enables consistent clamping torque and repeatable positioning, which improves stability and reduces the risk of insert movement under load.

How does the 0.4 mm corner radius affect finishes and strength?
A 0.4 mm radius provides a compromise between edge strength and achievable surface finish: small radii improve detail and reduce cutting forces while still offering adequate resistance to chipping in most turning applications.

Can the insert be used for both internal and external turning?
Yes; the rhombic 07 geometry and ISO compliance make the insert adaptable for both internal and external turning operations when fitted into an appropriate holder and with parameters selected for the specific operation.

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.