New tools for milling small holes

Cutting-tool manufacturer Horn has extended its range of products to enable the circular interpolation milling of holes down to 8 mm in diameter. With its triple-edged 304 system, the company is offering a versatile, productive solution for internal groove, thread and profile milling, as well as finish boring and chamfering.

The insert has a diameter of 7.7 mm. In conjunction with various vibration-damping carbide shanks, which feature an internal coolant supply, the tool is more economical and versatile than solid-carbide milling cutters for machining smaller diameters.

In terms of the portfolio, inserts are available in widths of 0.5, 1, 1.5 and 2 mm. For milling circlip grooves, Horn offers the system with cutting widths of 0.8, 0.9, 1.1 and 1.3 mm. In the case of the full radius versions, radii of 0.4, 0.6 and 0.8 mm are available. To enable the milling of chamfers, the system comes with angles of 45°, 30° and 15°. Regarding the substrates, Horn uses coated grade EG55 for general steel machining and IG35 for machining stainless steels and super alloys.

The Horn circular milling system is said to provide users with users many advantages, including a high level of reproducible quality. According to the company, it is fast, reliable and achieves good surface finish. During machining, the tool plunges into the material either at an angle or horizontally and is interpolated either in a circle, or helically to produce a thread.

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