UNION TOOL CO.
Union Tool is engaged in manufacturing and sales of industrial cutting tools. One of its product lines is cemented carbide drills for electronic circuit boards (hereinafter, PWB drills). It was the first Japanese company to start manufacturing and sales of PWB drills in Japan in 1963, and since then, it has established itself as a leading company backed by its excellent technical skills and superior product quality.
Normal size of Ø3.175mm shank diameter
Carbide End Mills
Union Tool's End Mills were developed from PCB drill manufacturing technology.
The appearance of End Mills resembles PCB drills, but they are able to form various shapes with tip and peripheral cutting edges, whereas drills bore holes only with tip edges.
Metal molds and mechanical parts are shaped with End Mills.