Material : Carbon Steel Number Of Pieces : 40 Includes : (17) Taps And (17) Dies 4-40 NC #43, 6-32NC #36, 8-32 NC 9/64 In, 10-24 NC 5/32 In, 10-31 NF 11/64 In, 12-24 NC 1/3 In, 1/4-20 NC 13/64 In, 1/4-28 NF 7/32 In, 5/6-18 NC 17/64- In, 5/16-24 NF 9/32 In, 3/8-16 NC 5/16 In, 3/8-24 NF 21/64 In, 7/6-14 NC 3/8 In, 7/16-20 NF 25/64 In, 1/2-13 NC 27/64 In, 1/2-20 NF 29/64 In, 1/8-27 NPT 21/64 In, Tap Wrench, T-Handle Tap Wrench, Die Stock, Screwdriver And Screw Pitch Gauge