RCMT 1204EN AH120 Wendeplatten - Tungaloy

Take advantage of the combination of PVD-coated carbide grade AH120 for enhanced wear resistance and a single-sided chipbreaker for stable chip control to secure consistent milling results; order directly through Metav Werkzeuge or consult the technical team for application-specific advice.

RCMT 1204EN AH120 indexable insert – round milling insert with hole for face and shoulder milling by Tungaloy

RCMT 1204EN AH120 is a round indexable insert designed for milling applications where a sharp cutting edge and process security are required; compatible insert seat, geometry and cutter body must match.

• Round 12 mm insert, 4.76 mm thick
• PVD-coated carbide grade AH120
• Single-sided chipbreaker, with hole
• Suited to face, shoulder and slot milling

Reliable cutting performance that keeps production moving

The combination of a PVD-coated carbide substrate and the AH120 grade provides a balance between wear resistance and fracture toughness, making the insert suitable for a broad range of milling tasks. In practice, the coating reduces adhesion and abrasion on the cutting edge, while the carbide core maintains edge stability under load. This results in a more consistent tool life and fewer unexpected interruptions to the machining process, which supports higher uptime and predictable planning in serial production and job-shop environments.

Precise fit and secure clamping for repeatable results

A correct seat and matching cutter body geometry are essential; the insert’s round 12 mm format and with hole configuration deliver secure axial locating and repeatable seating. The 4.76 mm thickness and the specified countersink ensure stable clamping and reduced micro-movement during operation. When mounted in a properly matched milling cutter, the design minimises vibration and run-out sensitivity, improving dimensional accuracy and surface finish without requiring additional operator intervention.

Controlled chip formation for safer, faster machining

The integrated single-sided chipbreaker is engineered to direct chips reliably during face, shoulder, slot, high-feed and contour milling. By shaping the chip flow, the insert reduces the risk of chip re-cutting and tool overload, enabling higher material removal rates with predictable forces. The hole with a cylindrical bore and a one-sided countersink (40°–60°) contributes to controlled clamping geometry and supports the chipformer’s function, particularly when processing medium to demanding workpiece materials in industrial applications.

Application scope and who benefits most

This insert is intended for milling applications where process security and a sharp cutting edge are priorities—typical uses include face and shoulder milling, grooving and contour work as determined by the cutter family. Production engineers, CNC programmers and tooling buyers in contract machining and discrete manufacturing will value the balance of durability and reliable chip control. Selection should always consider the matching cutter body and seat; if the assembly components align, the insert delivers stable, repeatable performance across a wide variety of tasks.

For tailored recommendations based on workpiece material or cutting conditions, contact Metav Werkzeuge for expert guidance and to order the appropriate Tungaloy inserts and compatible cutter bodies

Technical data

• Article number: 5812601
• Manufacturer SKU: TUN5812601
• Stock SKU: 5812601-Tungaloy
• Model series: Fräswendeschneidplatten
• Material: cemented carbide

Facts

• Diameter: 12 mm
• Thickness: 4.76 mm
• Clearance angle: 7°
• Countersink angle: 40°–60°
• ISO designation: RCMT1204EN

Special features

• Grade: AH120
• Coating: PVD
• Shape: round
• With hole: cylindrical bore with one-sided countersink
• Chipbreaker: single-sided
• Typical applications: face, shoulder, slot, high-feed and contour milling
• System requirement: matching insert seat, geometry and cutter body

FAQ

What milling tasks is this insert designed for? The RCMT1204EN AH120 insert is intended for face, shoulder, slot, high-feed and contour milling where a sharp cutting edge and process security are required.

How should the insert be mounted to ensure reliable performance? Mount the insert in a cutter body with a compatible seat and matching geometry; correct clamping using the hole and countersink ensures repeatable seating and reduced micro-movement.

What advantages does the AH120 grade provide compared with standard grades? AH120 offers a PVD-coated carbide combination with enhanced wear resistance and resistance to chipping, delivering longer edge life and steady performance in demanding milling operations.

Does the hole and one-sided countersink affect chip control? Yes, the cylindrical hole with a one-sided countersink supports stable clamping and complements the single-sided chipbreaker to promote consistent chip evacuation during machining.

Can this insert be used for high-feed milling? The insert’s design and chipbreaker make it suitable for high-feed strategies within the limits of the cutter family assignment; the final suitability depends on the cutter body and process parameters.

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.