LNMU 0303UE AH3225 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide wear resistance, a double-sided chipbreaker for reliable chip control and a secure, countersunk central hole for consistent clamping; order genuine inserts through Metav Werkzeuge or consult the technical team for application matching.

LNMU0303UE AH3225 Tungaloy indexable insert for milling, PVD-coated carbide

A LNMU0303UE AH3225 indexable insert engineered for milling applications, offering a wear-resistant cutting edge and geometry suited to face, shoulder, groove, high-feed and contour milling within compatible Tungaloy milling systems.

• PVD-coated carbide for extended tool life
• Double-sided chipbreaker for consistent chips
• Rectangular 03 insert, 3.18 mm thickness
• Central hole with countersink 40°–60°

Consistent chip control and extended edge life

The AH3225 grade is a PVD-coated carbide designed to deliver wear- and chipping-resistant performance in milling operations where a sharp cutting edge and process reliability are required. The coating and substrate combination promotes stable edge retention during interrupted cuts and varied engagement conditions. This results in fewer tool changes and more predictable results in series production, supporting a smoother machining cycle and higher net productivity.

Secure seating and repeatable clamping for process stability

The insert features a cylindrical central hole with a double-sided countersink (40°–60°) that ensures secure clamping and stable seating in appropriately matched cutter bodies. As specified, insert seat, geometry and milling body must be technically matched; correct mating of those components enables repeatable positioning and reduced runout. The rectangular 03 format and 3.18 mm thickness combine with the 90° geometry to provide reliable load distribution across the cutting edge.

Broad applicability across standard milling tasks

Designed for a range of milling operations, the insert is suitable for face, shoulder, slot, high-feed and contour milling depending on the assigned tool family. The combination of grade and double-sided chipbreaker supports controlled chip formation across different workpiece materials, contributing to process security and consistent surface quality. Where sharp edges and predictable wear behaviour are priorities, this insert grade provides a pragmatic balance between edge life and cutting performance.

Practical design details that reduce setup time

A 0° relief is specified, allowing this geometry to be matched with cutter designs that require a neutral clearance angle. The insert is intended for use as part of a system comprising the milling body, indexable insert, clamping screw and, if applicable, a support pad; correct assembly is essential for optimal function. The double-sided design permits indexation, effectively doubling usable edges and reducing downtime for edge changes in repetitive production environments.

For tailored recommendations on the LNMU0303UE AH3225 and to source original Tungaloy inserts, contact Metav Werkzeuge at info@metav-werkzeuge.com or call +49 2822 7131930 for application-oriented advice and availability.

Technical data

• Article number: 6905420
• Manufacturer article number / SKU: TUN6905420
• Internal SKU: 6905420-Tungaloy
• Model series: Milling indexable inserts
• Designation / ISO: LNMU0303UE (0303UE)

Facts

• Thickness: 3.18 mm
• Insert size: 03
• Insert shape: rectangular
• Cutting angle: 90°
• Relief angle: 0°
• Countersink angle: 40°–60°

Special features

• Coating / grade: AH3225 (PVD-coated carbide)
• Material: carbide
• Chipbreaker: double-sided
• Mounting: with central hole
• Countersink style: cylindrical hole + double-sided countersink
• Typical applications: face, shoulder, groove, high-feed, contour milling
• System components: milling body, indexable insert, clamping screw, possible pad

FAQ

What milling tasks is this insert suited for?
The LNMU0303UE AH3225 insert is designed for face, shoulder, slot, high-feed and contour milling depending on the assigned tool family and cutter body.

How does the AH3225 grade affect performance?
AH3225 is a PVD-coated carbide grade that provides wear resistance and chipping protection, offering process stability and extended edge life in demanding milling operations.

Is the LNMU0303UE reversible and how many cutting edges are available?
The insert is double-sided with a double-sided chipbreaker, allowing indexation; this effectively provides multiple usable cutting edges per insert when fitted in the correct seat.

Why is the countersink angle important for clamping?
The cylindrical hole with double-sided countersink (40°–60°) ensures secure seating and correct axial positioning in compatible milling bodies, promoting repeatability and reducing the risk of loosening under load.

What must be matched to ensure correct function in a milling system?
Insert seat, geometry and milling body must be technically matched; the system comprises the milling body, indexable insert, clamping screw and, where required, a pad to ensure correct fit and stability.

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.