DCMT 11T304 GH730 Wendeplatten - Tungaloy

Take advantage of the combination of GH730 wear resistance, precise 0.4 mm corner radius, and ISO compatibility for steady production results; the insert's secure hole and rhombic form ensure reliable seating in standard holders. Order the DCMT11T304 GH730 Tungaloy indexable insert directly via Metav Werkzeuge or ask our consultants if needed.

DCMT11T304 GH730 Tungaloy indexable insert, cemented carbide, 0.4 mm radius

The DCMT11T304 GH730 Tungaloy indexable insert is designed for external and internal turning in ISO-compatible holders, providing stable cutting performance for a variety of turning tasks.

• ISO form DCMT, 7° clearance angle
• GH730 carbide grade for wear resistance
• 0.4 mm corner radius for fine surface finishes
• Rhombic shape with cylindrical hole and countersink

Consistent edge stability for reliable turning

The combination of the GH730 grade and cemented carbide substrate gives this insert a balance of wear resistance and edge stability that supports longer tool life and consistent finishes. In practice, the enhanced edge retention reduces frequency of tool changes and helps maintain dimensional accuracy over extended production runs. This benefit is particularly relevant where repeatability and surface integrity are priorities, as the robust cutting edge resists chipping under typical turning loads.

Precision geometry for secure clamping and repeatability

Engineered to ISO form, the insert's 55° included angle and 7° clearance work with the rhombic profile to ensure predictable seating and force distribution in a compatible holder. The 3.97 mm thickness and 11 mm inscribed circle contribute to stable clamping, while the central hole with cylindrical bore and single-sided countersink (40°–60°) secures the insert against rotation. These geometric features translate into reduced vibration, improved tool life and steadier workpiece tolerances when fitted into a correctly specified toolholder.

Controlled chip formation and adaptable application

Equipped with a one-sided chipbreaker and a 0.4 mm corner radius, the insert helps produce manageable chips and promotes effective evacuation, lowering heat concentration at the cutting edge. This design supports both roughing and finishing passes when the grade and geometry are matched to workpiece stability and material. For general turning tasks, selecting the appropriate chipbreaker and cutting conditions enhances process reliability and can improve cycle times without compromising surface quality.

Contact Metav Werkzeuge for application advice on Tungaloy GH730 inserts — our specialists can assist with holder compatibility, cutting data and inventory availability; email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 6820989
• Manufacturer SKU: TUN6820989
• Model series: ISO indexable turning inserts
• Material: cemented carbide

Numbers / Core technical data

• Corner radius: 0.4 mm
• Thickness: 3.97 mm
• Inscribed circle: 11 mm
• Clearance angle: 7°
• Included angle: 55°

Design / Special features

• ISO designation: DCMT11T304
• Grade: GH730 (Tungaloy)
• Shape: rhombic
• Hole: with hole — cylindrical hole + single-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Application: turning

FAQ

What holder form is required for this insert?
The insert uses the ISO DCMT11T304 form and fits standard rhombic turning holders that accept a 55° insert with a central hole and matching clamp geometry.

Which machining tasks is the GH730 grade suited to?
The GH730 Tungaloy grade is optimised for turning, offering a combination of wear resistance and toughness that supports steady performance in many routine turning operations.

How does the chipbreaker affect machining?
The one-sided chipbreaker promotes controlled chip formation and better evacuation, which helps reduce heat at the cutting edge and supports improved surface quality.

What finish can be expected with a 0.4 mm corner radius?
A 0.4 mm corner radius is suitable for fine finishing passes, balancing edge strength with the ability to achieve modest surface roughness values when cutting parameters are set accordingly.

How can the insert be identified for reordering?
Reorder using the ISO designation DCMT11T304, grade GH730, or manufacturer article number 6820989 to ensure the correct insert and geometry are supplied.

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.