DCMT 11T312 T9225 Tungaloy Wendeplatten - Tungaloy

The robust combination of CVD-coated T9225 grade and an ISO rhombic geometry delivers consistent results in medium to heavy steel turning, especially where interrupted cuts occur; this reduces tool changes and supports stable chip formation. Order original Tungaloy inserts directly via Metav Werkzeuge or consult their specialists for grade selection and application advice.

DCMT 11T312 T9225 ISO rhombic turning insert — Tungaloy, 55° lead, 7° clearance

The DCMT11T312 T9225 is an ISO-standard rhombic insert designed for external and internal turning in steel, offering a universal, robust grade suited to variable engagement conditions.

• CVD-coated carbide T9225 for toughness
• Rhombic 55° geometry for versatile turning
• 7° clearance angle for reliable chip control
• Cylindrical hole with 40°–60° countersink

Stable cutting performance for medium to heavy steel turning

The combination of the T9225 CVD-coated carbide and the rhombic geometry provides a durable solution for demanding turning operations. The grade is engineered as a robust universal option for steel machining where changing engagement conditions or light interruptions occur; this translates into fewer tool swaps and predictable wear behaviour. The coating promotes heat resistance and reduced flank wear, so the cutting edge maintains performance over longer cycles and supports consistent part quality.

Geometry and angles that improve process reliability

A 55° lead angle combined with a 7° clearance angle ensures a controlled cutting action and an improved surface finish on turned components. The 1.2 mm corner radius helps distribute cutting forces, reducing edge chipping in interrupted cuts and stabilising the cut when depths vary. Compatibility with holders depends on form, clearance, tolerance class, fastening, size and thickness, so the insert’s ISO conformity simplifies selection of matching external holders or boring bars and reduces setup uncertainty.

System compatibility and practical workshop benefits

The insert is part of an ISO turning plate system that typically includes a matching external holder or boring bar, a shim/clamping set and spare screws for quick replacement. The DCMT11T312 features a cylindrical hole with a one-sided countersink (40°–60°) to ensure secure clamping and repeatable seating in a wide range of toolholders. With a plate thickness of 3.97 mm and clear size designation, inventory management becomes simpler and changeovers are faster, reducing downtime and increasing machine availability.

Contact Metav Werkzeuge for tailored advice on selecting the right Tungaloy T9225 insert for steel turning and to arrange supply of genuine parts — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 6781312
• Manufacturer SKU: TUN6781312
• SKU: 6781312-Tungaloy
• Series: ISO turning inserts
• Designation: DCMT11T312 T9225 Tungaloy insert

Facts

• Size: 11
• Thickness: 3.97 mm
• Lead angle: 55°
• Clearance angle: 7°
• Corner radius: 1.2 mm
• Manufacturer article number: 6781312

Design & Features

• Material: cemented carbide
• Coating: CVD
• Grade: T9225
• Shape: rhombic
• Hole: cylindrical hole with one-sided countersink (40°–60°)
• Chipbreaker: one-sided
• Application: turning

FAQ

What materials is this insert suitable for?
The Tungaloy DCMT11T312 T9225 is primarily intended for steel machining; the T9225 grade and CVD coating offer robustness for medium to heavy cuts and intermittent engagement typical in steel turning.

How does the 55° geometry affect machining?
The 55° rhombic geometry on this turning insert reduces cutting forces in certain directions and improves versatility for external and internal turning, helping to achieve a stable surface finish and consistent chip formation.

Is the DCMT11T312 compatible with standard ISO holders?
Yes, the insert follows ISO standards; compatibility with a holder depends on form, clearance angle, tolerance class, fastening and thickness, so matching a compliant external holder or boring bar is recommended.

What is the benefit of the cylindrical hole with countersink?
The cylindrical hole with a one-sided countersink (40°–60°) ensures secure clamping and repeatable seating, which improves stability in heavy or interrupted cuts and simplifies insert indexing.

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.