High quality alloy steel containing popular metric tap, dies and holders. Contains: 1 die handle, 1 tap wrench, 1 t-type tap wrench, 1 screw pitch gauge, and 17 tap and dies sizes: M3 x 0.5, M3 x 0.6, M4 x 0.7, M4 x 0.75, M5 x 0.8, M5 x 0.9, M6 x 1.0, M6 x 0.75, M7 x 1.0, M7 x 0.75, M8 x 1.25, M8 x 1.0, M10 x 1.5, M10 x 1.25, M12 x 1.75, M12 x 1.5, 1/8-27.