Dormer 5974257 is an E061 straight flute tap set for #12-24 UNC 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, 2-3/8 in overall length, 0.81 in thread length, H3 thread limit, and #16 tap drill size.