Second taper taps manufactured from special high carbon steel with accurately cut threads. Features and Benefits • Contents: 5 x 44, 6 x 40, 8 x 36, 10 x 32, M12 x 28, 1/4" x 28, 5/16" x 24, 3/8" x 24, 7/16" x 20 and 1/2" x 20 (tpi) • Second taper taps manufactured from special high carbon steel with accurately cut threads Contents 1 x Tap size: 5 x 44 (tpi) 1 x Tap size: 6 x 40 (tpi) 1 x Tap size: 8 x 36 (tpi) 1 x Tap size: 10 x 32 (tpi) 1 x Tap size: 12 x 28 (tpi) 1 x Tap size: 1/4" x 28 (tpi) 1 x Tap size: 5/16" x 24 (tpi) 1 x Tap size: 3/8" x 24 (tpi) 1 x Tap size: 7/16" x 20 (tpi) 1 x Tap size: 1/2" x 20 (tpi)