Features These sets contain high-speed steel taps that provide good wear resistance when creating internal threads in general purpose tapping applications in a range of materials, including ferrous and non-ferrous metals. The sets also contain carbon steel dies, which are an economical choice for external-threading applications in maintenance operations. Number of Pieces / 45 Number Of Taps / 10 Number of Dies in Set / 10 Tap Type / Hand Tap Thread Standard / UNC, UNF, UNS Thread Limit / H3, H4 Thread Sizes Included / 1"-14 NS, 1"-8 NC, 1/2"-13 NC, 1/2"-20 NF, 1/4"-20 NC, 1/4"-28 NF, 3/4"-10 NC, 3/4"-16 NF, 3/8"-16 NC, 3/8"-24 NF, 5/16"-18 NC, 5/16"-24 NF, 5/8"-11 NC, 5/8"-18 NF, 7/16"-14 NC, 7/16"-20 NF, 7/8"-14 NF, 7/8"-9 NC, 9/16"-12 NC, 9/16"-18 NF Threads per Inch / 10, 11, 12, 13, 14, 18, 20, 24, 28, 8, 9 Tap Shank Standard / Table 302 Tap Finish / Bright (Uncoated) Tap Shank Dia. / Table 302 Tap Overall Length / Table 302 Class of Fit / 2B Coolant Fed / Non-Coolant Through Extended Neck / No Extended Shank / No Extension Tap / No Helix Angle / 0 Degrees Number of Flutes / 4 Die Material / High Speed Steel Die Finish / Bright (Uncoated) Die Shape / Round Die Type / 2-Piece Die Thread Sizes Included / 1"-14 NS, 1"-8 NC, 1/2"-13 NC, 1/2"-20 NF, 1/4"-20 NC, 1/4"-28 NF, 3/4"-10 NC, 3/4"-16 NF, 3/8"-16 NC, 3/8"-24 NF, 5/16"-18 NC, 5/16"-24 NF, 5/8"-11 NC, 5/8"-18 NF, 7/16"-14 NC, 7/16"-20 NF, 7/8"-14 NF, 7/8"-9 NC, 9/16"-12 NC, 9/16"-18 NF Die Series / 0550 Case Type / Metal Features / Self Alignment Primary Material Application / All Materials Primary Material Application ISO Code / H, K, M, N, P, S Secondary Material Application / Stainless Steel Secondary Material Application ISO Code / M 55% Thread Drill Size / #3, 1/2 in, 10.20mm, 11.30mm, 11.80mm, 11/32 in, 13.25mm, 17.20mm, 17.90mm, 20.90mm, 29/32 in, 5.70mm, 51/64 in, 8.40mm, 9/32 in, I, W 65% Thread Drill Size / #5, 10.00mm, 11.00mm, 11.60mm, 12.50mm, 13/16 in, 16.90mm, 17.70mm, 17/64 in, 25/32 in, 33/64 in, 57/64 in, 7/32 in, J, P, R, V 75% Thread Drill Size / #7, 11.40mm, 12.20mm, 12.90mm, 16.50mm, 17.50mm, 19.50mm, 20.40mm, 22.25mm, 27/64 in, 5.45mm, 5/16 in, 8.50mm, 9.95mm, F, I, U Die Material Grade / Carbon Steel Dimensions Standard / Fractional Inch Finish - Machining / Bright (Uncoated) Material - Machining / High Speed Steel Max. Die Thread Size / 1"-14 Max. Tap Thread Size / 1"-14 Measurement System / Fractional Inch Min. Bore Dia. / 1/4 in -20 NC Min. Tap Thread Size / 1/4"-20 Powdered Metal Base Material / No Spiral Direction / Neutral Tap Material Grade / M2 Tap Sizes Included / 1 in -14 NS, 1 in -8 NC, 1/2 in -13 NC, 1/2 in -20 NF, 1/4 in -20 NC, 1/4 in -28 NF, 3/4 in -10 NC, 3/4 in -16 NF, 3/8 in -16 NC, 3/8 in -24 NF, 5/16 in -18 NC, 5/16 in -24 NF, 5/8 in -11 NC, 5/8 in -18 NF, 7/16 in -14 NC, 7/16 in -20 NF, 7/8 in -14 NF, 7/8 in -9 NC, 9/16 in -12 NC, 9/16 in -18 NF Standards / ANSI Tap Chamfer / Plug Tap Material / High Speed Steel Tap Wrench Number / #5, #7 Thread Direction / Right Hand Thread Type / UNC, UNF, UNS