Overall Chamfer + Thread Thread+Neck Shank Shank Size of Length of length full thread length length length dia. square square L ℓt ℓ ℓn ℓs Ds K ℓk SP OX Spiral Fluted Taps, Oxided Size Class Code Chamfer L ℓt ℓ ℓn ℓs Ds K ℓk No. of Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes 1/2-13UNC 2B SGU08RXNEX 2.5P 110 - 15 - 56 9 7 10 3 8 1/2-20UNF 2B SMU08NXNEX 2.5P 100 - 15 - 51 9 7 10 3 8 9/16-12UNC 2B SGU09SXNEX 2.5P 110 - 18 - 56 11 9 12 3 8 9/16-18UNF 2B SMU09OXNEX 2.5P 100 - 14 - 51 11 9 12 3 8 (for through hole) Spiral Fluted Taps 5/8-11UNC 2B SGU10UXNEX 2.5P 110 - 18 - 56 12 9 12 3 8 5/8-18UNF 2B SMU10OXNEX 2.5P 100 - 14 - 51 12 9 12 3 8 3/4-10UNC 2B SGU12VXNEX 2.5P 125 - 20 - 64 14 11 14 4 8 3/4-16UNF 2B SMU12PXNEX 2.5P 110 - 14 - 56 14 11 14 4 8 (for through hole) Spiral Pointed Taps 7/8-9UNC 2B SGU14WXNEX 2.5P 140 - 20 - 71 18 14.5 17 4 8 7/8-14UNF 2B SMU14QXNEX 2.5P 125 - 20 - 64 18 14.5 17 4 8 1-8UNC 2B SGU16XXNEX 2.5P 160 - 25 - 82 18 14.5 17 4 8 1-12UNF 2B SMU16SXNEX 2.5P 140 - 18 - 71 18 14.5 17 4 8 1 1/8-7UNC 2B SGU18YXNEX 2.5P 180 - 30 - 92 22 18 21 4 8 Hand Taps 1 1/8-12UNF 2B SMU18SXNEX 2.5P 150 - 20 - 77 22 18 21 4 8 1 1/4-7UNC 2B SGU20YXNEX 2.5P 180 - 30 - 92 22 18 21 4 8 1 1/4-12UNF 2B SMU20SXNEX 2.5P 150 - 20 - 77 22 18 21 4 8 1 3/8-6UNC 2B SGU22ZXNEX 2.5P 200 - 40 - 102 28 20 23 4 8 Carbide Taps Cemented 1 3/8-12UNF 2B SMU22SXNEX 2.5P 170 - 20 - 87 28 20 23 4 8 1 1/2-6UNC 2B SGU24ZXNEX 2.5P 200 - 40 - 102 32 24 27 4 8 1 1/2-12UNF 2B SMU24SXNEX 2.5P 170 - 20 - 87 32 24 27 4 8 1 3/4-5UNC 2B SGU287XNEX 2.5P 220 - 45 - 112 36 29 32 4 8 Roll Taps 1 3/4-12UN 2B SMU28SXNEX 2.5P 180 - 20 - 92 36 29 32 4 8 Size Class Code Chamfer L ℓt ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes For G Threads G1/16-28 - SVG0010NEX 2.5P 90 - 12 - 46 6 4.9 8 3 8 Simple Inspection Tools Special Thread Taps G1/8-28 - SVG0020NEX 2.5P 90 - 12 - 46 7 5.5 8 3 8 ● G1/4-19 - SVG0040NEX 2.5P 100 - 14 - 51 11 9 12 3 8 ● G3/8-19 - SVG0060NEX 2.5P 100 - 14 - 51 12 9 12 3 8 ● G1/2-14 - SVG0080NEX 2.5P 125 - 18 - 64 16 12 15 4 8 ● Pipe Taps G5/8-14 - SVG0100NEX 2.5P 125 - 18 - 64 18 14.5 17 4 8 ● G3/4-14 - SVG0120NEX 2.5P 140 - 20 - 71 20 16 19 4 8 ● G7/8-14 - SVG0140NEX 2.5P 150 - 20 - 77 22 18 21 4 8 G1-11 - SVG0160NEX 2.5P 160 - 20 - 82 25 20 23 4 8 ● G1 1/8-11 - SVG0180NEX 2.5P 170 - 20 - 87 28 22 25 4 8 Thread Mills G1 1/4-11 - SVG0200NEX 2.5P 170 - 20 - 87 32 24 27 4 8 ● G1 1/2-11 - SVG0240NEX 2.5P 190 - 25 - 97 36 29 32 4 8 ● Dies Center Drills Centering Tools DIN SP-12 63