HeliCoil Professional Thread Repair Kit 1/4-28 P/N 5402-4

Professional thread repair kit for 1/4-28 UNF size. This HeliCoil set includes a 17/64 H.S.S. drill bit, an HSS STI tap, an installation tool, and a tang removal rod. It contains three different lengths of inserts: short (.250 in), medium (.375 in), and long (.500 in). The components are housed in a black plastic carrying case.