DCMT 11T312 AH725 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide durability, 55° rhombic geometry for versatile turning and a secure, centred clamping design to maintain stable chip control and reduce downtime; order the insert directly via Metav Werkzeuge or request personalised advice from our consultants.

DCMT 11T312 AH725 – ISO turning insert for external and internal turning, Tungaloy

DCMT11T312 AH725 is an ISO-standard, rhombic turning insert designed for reliable external and internal turning operations in steel and stainless steel, featuring a centred hole and a 55° cutting geometry.

• PVD-coated carbide for robust cutting
• Universal grade AH725 for steel and stainless steel
• Rhombic 55° geometry for versatile turning
• Cylindrical hole with single-side countersink for clamping

Proven geometry for reliable external and internal turning

The 55° rhombic geometry delivers a balanced combination of cutting edge strength and access to diverse contour profiles, ideal for both external turning and light internal turning. Manufactured as an ISO-standard insert, this design allows for predictable chip flow and reduced vibration when matched with a suitable holder. The PVD-coated carbide grade AH725 offers improved wear resistance and fracture toughness, which is particularly beneficial when processing mixed batches or when small toolholders are used. This results in steadier surface finishes and fewer interrupted cycles, helping to keep production stable.

Compatibility and secure clamping to shorten setup time

Compatibility to the toolholder is defined by form, relief angle, tolerance class, fastening method, size and thickness; the insert’s cylindrical centre hole with a single-side countersink (40°–60°) ensures repeatable, secure seating and simplified replacement. With a plate thickness of 3.97 mm and size 11, the insert fits common ISO turn-holders when the 7° relief angle and tolerance are matched. The 1.2 mm corner radius provides a compromise between edge strength and detail reproduction, reducing the need for frequent edge dressing and helping to preserve dimensional accuracy during longer production runs.

Lower tooling costs through consistent wear performance

The chosen grade AH725 is a universal, chip-resistant solution that combines process reliability with broad material coverage for steel and stainless steel, which reduces inventory complexity and changeover time. The PVD coating decreases flank wear and extends cutting life under varied cutting conditions, while the carbide substrate maintains edge integrity against mechanical shocks. For operations demanding predictable cycle times and surface quality, this insert contributes directly to improved first-pass yield and longer intervals between indexings, supporting efficient, cost-conscious machining without sacrificing performance.

For immediate availability and expert application advice on Tungaloy AH725 turning inserts, contact Metav Werkzeuge for tailored recommendations and delivery options.

Technical data

• Article number: 6856782
• Manufacturer SKU: TUN6856782
• Our SKU: 6856782-Tungaloy
• Material: Hartmetall

Facts

• Size: 11
• Plate thickness: 3.97 mm
• Corner radius: 1.2 mm
• Cutting angle: 55°
• Relief angle: 7°

Special features

• Grade/coating: AH725, PVD-coated carbide
• Plate form: Rhombic
• Hole: Cylindrical hole + single-side countersink (40°–60°)
• Application: Turning (external and internal)
• System: ISO turning insert series

FAQ

What materials is this insert suitable for? The DCMT11T312 AH725 insert by Tungaloy is designed primarily for steel and stainless steel, benefiting from the AH725 grade’s universal, chip-resistant properties.

How does the hole and countersink design help in clamping? The cylindrical centre hole with a single-side countersink (40°–60°) ensures stable seating and repeatable clamping when used with compatible ISO external holders for turning inserts such as the Tungaloy DCMT11T312 AH725 (SKU TUN6856782).

What advantage does the 1.2 mm corner radius offer? A 1.2 mm corner radius increases edge strength and reduces the risk of chipping, supporting consistent surface quality and longer tool life during continuous turning operations with the AH725 grade.

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.