HHIP 6 Piece 1/8-1" Carbon Steel NPT Taper Pipe Tap Set This HHIP taper pipe tap set is made of carbon steel and covers a size range of 1/8 to 1". It offers versatility and durability for various pipe threading applications. The taps are ground thread. Designed with a 3/4" per foot taper rate for gradual threading, ensuring a secure and leak-resistant pipe connection. Crafted from carbon steel, ensuring longevity and reliability in challenging working conditions. Ideal for a wide range of applications requiring NPT threads, from plumbing to industrial pipe fitting. Includes 1 each of 1/8~27, 1/4~18, 3/8~18, 1/2~14, 3/4~14 and 1~11-1/2. Fitted case is included.