DNMG 150404 AH6225 Wendeplatten - Tungaloy

Take advantage of the combination of a PVD-coated cemented carbide grade AH6225, a 55° DNMG form and a 0.4 mm corner radius for consistent performance in stainless-steel turning; order the insert directly via Metav Werkzeuge or contact our consultants for application advice.

DNMG150404 AH6225 Tungaloy turning insert — PVD-coated carbide, 55° rhombic form

The DNMG150404 AH6225 is an ISO-standard indexable turning insert designed for external and internal turning, optimised for medium machining of stainless steels with a sharp yet stable cutting edge

• PVD-coated cemented carbide AH6225
• 55° rhombic DNMG form with 0.4 mm radius
• Double-sided chipbreaker for versatile turning

Consistent cutting performance for stainless steels

The combination of a PVD-coated surface and cemented carbide substrate gives a balance of wear resistance and edge stability that suits stainless steel machining under changing conditions. The AH6225 grade is formulated as a universal cutting material that maintains a sharp cutting edge while resisting edge breakdown during interrupted or variable-depth cuts. The coating reduces adhesion and built-up edge formation, which improves surface quality and extends the effective life of the insert; this leads to fewer changeovers and more consistent cycle times on production runs.

Smooth integration into ISO tooling systems

Compatibility with toolholders is governed by the insert form, relief angle, tolerance class, fastening and plate thickness; the DNMG geometry follows ISO norms to ensure reliable seating in standard holders. The 55° rhombic shape provides a good compromise between strength and accessibility for turning contours, while the 0° relief and 4.76 mm thickness deliver stable clamping and rigidity. The insert is supplied with a cylindrical hole for positive location and is double-sided, allowing rotation to a fresh edge and reducing inventory cost per cutting edge in the toolroom.

Reliable chip control and recommended applications

A double-sided chipbreaker design supports controlled chip formation for both external and internal turning operations, improving evacuation and reducing risk of chip entanglement in longer cycles. This arrangement is particularly useful when machining medium feeds and depths of cut in stainless steel where chip control affects surface finish and tool life. For system build-up, the cutting package comprises the indexable insert together with a matched external holder or boring bar, plus shim/clamping set and replacement screws to complete a robust tooling solution.

Production benefits and operational guidance

Choosing a universal grade such as AH6225 helps standardise tooling across mixed batches and reduces the need for multiple specialised grades, contributing to smoother production planning and lower tooling complexity. Where process security and repeatability are priorities, the PVD-coated AH6225 insert supports steady performance with fewer unplanned interventions. For best results, select the chipbreaker and cutting parameters to suit the specific stainless-steel grade and the desired surface finish; when in doubt, consult Metav Werkzeuge’s technical advisors for parameter recommendations and holder compatibility.

Contact Metav Werkzeuge for tailored application support on the Tungaloy DNMG150404 AH6225 turning insert and to check current stock and delivery options — eMail: info@metav-werkzeuge.com or phone +49 2822 7131930

Technical data

• Manufacturer item number: 6947252
• Manufacturer SKU: TUN6947252
• Stock SKU: 6947252-Tungaloy
• Model series: ISO turning indexable inserts
• Designation: DNMG150404 AH6225 Tungaloy insert

Facts

• ISO code: 150404
• Insert geometry angle: 55°
• Relief angle: 0°
• Corner radius: 0.4 mm
• Plate size: 15 mm
• Thickness: 4.76 mm

Special features

• Material: cemented carbide
• Coating: PVD
• Grade: AH6225
• Double-sided chipbreaker
• Cylindrical hole for positive location
• Rhombic plate form (DNMG)
• Application: turning (external & internal)
• System components: insert, holder/boring bar, shim/clamping set, replacement screws

FAQ

What workpieces is this insert suited to?
The DNMG150404 AH6225 insert is intended primarily for machining stainless steel and performs well in medium cutting conditions where a balance of sharpness and edge stability is required.

How does the PVD coating affect performance?
The PVD-coated cemented carbide of this Tungaloy turning insert reduces friction and adhesion, improving wear resistance and decreasing the tendency for built-up edge during stainless-steel turning.

Can the insert be rotated or indexed on-site?
Yes, the DNMG150404 is double-sided and can be indexed to a fresh cutting edge; this extends usable tool life before complete replacement is required.

Which holder features are required for correct compatibility?
Compatibility depends on the DNMG form, relief angle, tolerance class, fastening method, plate size and thickness; holders and boring bars designed for DNMG 150404 inserts and a 4.76 mm thickness are appropriate.

Is this insert supplied with mounting hardware?
The standard system build-up for this insert includes the indexable plate plus the matched holder or boring bar, and a shim/clamping set and replacement screws are typically required to complete the assembly

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.