New tools for milling small holes

Horn has extended its range of products to enable 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.

The inserts are available in widths of 0.5 mm, 1 mm, 1.5 mm and 2 mm. For milling circlip grooves, Horn offers the system with cutting widths of 0.8 mm, 0.9 mm, 1.1 mm and 1.3 mm. Regarding the substrates, Horn uses coated grade EG55 for general steel machining and IG35 for machining stainless steels and superalloys.