Material, standard High-speed steel, UNC | Material, standard High-speed steel, UNF | Material, standard High-speed steel, Metric |
UNC Accusize Industrial Tools 0001-0040 H.S.S. 18-piece set UNC Taps & Drills | UNF Accusize Industrial Tools 0001-0050 H.S.S. 18-piece set UNF Taps & Drills | Metric Accusize Industrial Tools 0001-0052 H.S.S. 18-piece set Metric UNC Taps & Drills |