Professional grade fractional taps and dies with precision 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).