Professional grade fractional taps and dies with precision cut threads accurately formed for consistent and exact threading. Each tap and die are heat treated and tempered for file hard threads and a longer useful life. For hand threading applications only. Includes 0 In. - 1/4 In. T-handle tap wrench, 1/4 In - 1/2 In. T-handle tap wrench, 0 In. to 1 In. adjustable tap wrench, 1 In. adjustable die stock, pitch gauge, screwdriver, and (1) of each tap and die: 4-40 NC, 6-32 NC, 8-32 NC, 10-24 NC, 10-32 NF, 12-24 NC, 1/4-20 NC, 1/4-28 NF, 5/16-18 NC, 5/16-24 NF, 3/8-16 NC, 3/8-24 NF, 7/16-14 NC, 7/16-20 NF, 1/2-13 NC, 1/2-20 NF, 1/8-27 (NPT).