TNMU 1207R1 AH3225 Wendeplatten - Tungaloy

The combination of a PVD-coated carbide substrate and a double-sided chipbreaker yields consistent cutting performance and extended edge life for versatile milling tasks; the precise triangular 12 mm form factor with a centred hole ensures reliable seating and fast indexing. Order the TNMU1207R1 AH3225 insert directly via Metav Werkzeuge or ask our consultants if needed.

TNMU 1207R1 AH3225 Triangular indexable milling insert, 12 mm — Tungaloy

The TNMU1207R1 AH3225 is a triangular indexable insert engineered for general milling applications, offering wear-resistant PVD-coated carbide for face, shoulder, slot and contour milling.

• PVD-coated carbide grade AH3225
• Triangular insert, 12 mm size
• Cylindrical hole with 40°–60° countersink
• Double-sided chipbreaker for process stability

Consistent cutting performance through coated carbide technology

The TNMU1207R1 insert combines a PVD-coated surface with a carbide substrate to deliver a balance between wear resistance and fracture toughness. This material pairing reduces flank wear and preserves a sharp cutting edge for longer tool life, which translates into fewer interruptions for indexing and tool changes. For mills handling a mix of steels and cast iron, the coated grade AH3225 is optimised to maintain edge form under varying cutting conditions, helping to sustain dimensional accuracy and surface finish across interrupted and continuous cuts.

Reliable seating and fast tool changeover for productivity gains

Designed in a triangular 12 mm format with a centred cylindrical hole and a dual-angle countersink (40°–60°), the insert enables precise seating in compatible cutter bodies. The standardised ISO designation assists in matching the insert to the correct milling body and clamping screw, ensuring repeatable positioning and minimizing setup time. The 7.94 mm thickness and defined seating geometry contribute to stable clamping, reducing micro-movements that can impact tolerances during high-feed or shoulder milling operations.

Process security and chip control for fewer rejects

The insert’s double-sided chipbreaker geometry promotes controlled chip formation and evacuation, supporting consistent cutting forces and lowering the risk of edge chipping under heavy engagement. With a clearance angle of 0° and a corner radius of 0 mm, the design favours sharp-entry cuts where a defined cutting edge is required. These characteristics make the insert particularly suitable for applications where process reliability and repeatable component quality take priority over aggressive corner radii.

Practical integration and application guidance

The insert is supplied for use within the matching Tungaloy milling system: seating, plate geometry and cutter body must be technically compatible to achieve the described performance. As part of a system build—cutter body, indexable insert, clamping screw and any backing or shim—the insert offers flexibility for planing, slotting, contouring and high-feed strategies depending on the selected tool family. Where mixed-material batches are processed, the AH3225 grade supports a broad material range while keeping a predictable tool life profile.

Contact Metav Werkzeuge for advice on integrating the Tungaloy TNMU1207R1 AH3225 insert into production and to request availability or delivery details at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 6824043
• Manufacturer SKU: TUN6824043
• SKU: 6824043-Tungaloy
• Model series: Fräswendeschneidplatten
• Full name: TNMU1207R1 AH3225 Tungaloy-Wendeplatte

Facts

• Thickness: 7.94 mm
• Size: 12 mm
• Angle: 60°
• Clearance angle: 0°
• Corner radius: 0 mm
• Countersink: 40°–60°

Features

• Material: carbide (cemented carbide)
• Coating: PVD
• Grade: AH3225
• Shape: triangular
• Hole style: cylindrical hole with double-sided countersink
• Chipbreaker: double-sided
• Application: milling (face, shoulder, slot, contour)

FAQ

Which materials is this insert suitable for? The TNMU1207R1 AH3225 insert is suitable for a broad range of materials commonly encountered in milling, including steels and cast iron, thanks to its PVD-coated carbide grade AH3225 designed for wear resistance and edge stability.

How is the TNMU1207R1 mounted in the cutter body? Mounting requires a compatible Tungaloy milling body with the correct seating geometry; the insert’s centred cylindrical hole and 40°–60° countersink provide secure clamping and repeatable positioning when used with the matching clamping screw and backing plate.

What are the main benefits of the AH3225 grade? Grade AH3225 offers a balance of wear resistance and chipping resistance, providing reliable edge life and process security for general-purpose milling operations.

Is this insert reversible or indexable on both sides? The insert features a double-sided chipbreaker design, allowing indexing to multiple usable edges in line with the triangular geometry; this supports efficient edge utilisation and reduced tooling costs per edge.

What is the ISO designation for ordering the insert? The ISO designation is TNMU1207R1, which should be referenced together with the grade AH3225 and the manufacturer Tungaloy when specifying the insert for procurement.

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.