Machine taps with a blue ring are suitable for threading refractory steels, hardened steels, case-hardening steels, and tool steels with R ≤ 1200 N/mm². They are made of 5% Cobalt...
Machine taps with a blue ring are suitable for threading refractory steels, hardened steels, case-hardening steels, and tool steels with R ≤ 1200 N/mm². They are made of 5% Cobalt...