Tungsten Steel 4-Blade End Mill for Contouring and Chamfering with 1-12 mm Ball Diameters

This 4-blade end mill is a precision cutting tool designed for CNC machining centres, crafted from tungsten steel to meet the demands of professional milling operations. It is specifically configured for creating accurate contours, 90° chamfers, and pockets in various materials. With a 35° helix angle promoting efficient chip flow and four effective cutting edges, it is built for consistent performance. The tool is available in multiple size configurations, offering ball diameters from 1 mm up to 12 mm and function lengths from 3 mm to 36 mm, providing a versatile solution for detailed engineering work where precise radii and depths are critical.

Features and Construction

The construction of this end mill focuses on the practical requirements of milling, combining specific geometries with a robust material choice to handle intricate cutting tasks.

Material and Build

The tool is manufactured from tungsten steel, a material selected for its hardness and wear resistance in metal cutting applications. It features four flutes (slots) which correspond to its four effective cutting edges, a design that balances cutting efficiency with tool strength. The specified 35° helix angle is engineered to provide a shearing cut action, which can help reduce cutting forces and improve surface finish on the workpiece.

Size and Practical Fit

The end mill’s dimensions are clearly defined for accurate toolpath programming and machine setup. The ball diameter, which determines the profile of the cut, ranges from 1 mm to 12 mm. The contour radius it can produce matches this range from 1 mm to 12 mm. With a maximum cutting depth of 50 mm, it is capable of deeper pocketing operations. The function length, the portion of the tool effective for cutting, varies from 3 mm to 36 mm across the different size options, allowing selection based on required reach and toolholder clearance.

Uses and Placement

This tool is intended for use in a professional or advanced workshop environment, integrated into CNC milling machines to perform specific machining operations.

Event or Professional Use

In a professional CNC machining context, this end mill is suited for precision engineering, mould making, and component manufacturing where detailed contours and chamfers are required. Its ability to produce a defined 90° chamfer and precise radii from 1 mm makes it applicable for finishing edges or creating complex 3D surfaces in prototypes and production parts.

Everyday Home Use

For advanced hobbyists or makers operating small-scale CNC equipment, this tool enables the creation of detailed parts for models, custom fixtures, or intricate decorative items. The range of small ball diameters, starting at 1 mm, allows for very fine detailing in materials like aluminium, plastics, or certain woods, supporting complex DIY or craft projects.

Benefits and Buying Value

The value of this end mill lies in its specialised design and the concrete specifications it offers for specific milling tasks, providing a tool matched to the job requirements.

Reuse and Low Maintenance

As a solid tool made from tungsten steel, it is designed for repeated use across multiple projects when operated within its intended parameters. Maintaining its sharpness through proper use and storage is the primary care needed to extend its functional life between professional sharpening services.

Why Choose This Product

This end mill presents a focused solution for users who need a tool capable of both contour milling and chamfering with small, precise radii. The combination of a 35° helix angle, four cutting edges, and the availability of very small 1 mm ball diameters differentiates it for detailed work. It offers a single tool solution for generating specific geometries without needing multiple specialised cutters, provided the required dimensions fall within its 1-12 mm ball diameter and 50 mm depth range.