Second taper taps manufactured from special high carbon steel with accurately cut threads. Display packed.Contents: 3 x 0.5, 4 x 0.7, 5 x 0.8, 6 x 1.0, 7 x 1.0, 8 x 1.25, 9 x 1.25, 10 x 1.5, 11 x 1.5 and 12 x 1.75