Dormer 5974194 is an E071 straight flute tap set for 7/8-14 UNF threads. This 3-piece HSS set includes taper, plug, and bottoming taps for through-hole and blind-hole applications. It features 4 flutes, bright finish, 4-11/16 in overall length, 1.1811 in thread length, H4 thread limit, and 13/16 in tap drill size.