cutting tapforming tapcutting tapforming tapcutting tapforming tap cutting tapforming tapcutting tapforming tapcutting tapforming tap 10. Tap Thread Limits (JIS, DIN, ANSI) Intro Unified Threads (UNC/UNF) Unit: mm SP Kind Majordiameter Pitch Diameter Minordiameter Kind Majordiameter Pitch Diameter MinordiameterSizeoftapClassBasicSizeBasicSizeUpper Tolerance (μm) + Lower Tolerance (μm) + Tolerance (μm)BasicSizeSizeoftapClassBasicSizeBasicSizeUpper Tolerance (μm) + Lower Tolerance (μm) + Tolerance (μm)BasicSize P1 20 0 20 P1 20 0 20 P2 40 20 20 P2 40 20 20 SL P3 60 40 20 P3 60 40 20 3B 25 11 14 3B 30 14 16 2B 4.826 4.310 40 18 22 3.967 1/4-20UNC 2B 6.350 5.524 46 22 24 4.976 2BX 60 38 22 2BX 71 47 24 PO GH2 25.4 12.7 12.7 GH2 25.4 12.7 12.7 GH3 38.1 25.4 12.7 GH3 38.1 25.4 12.7 No.10-32UNF GH4 50.8 38.1 12.7 GH5 63.5 50.8 12.7 3BX 51 38 13 3BX 64 51 13 ST 2BX 64 51 13 2BX 76 64 12 G5 64 51 13 G6 76 64 12 1/4-20UNC 6.350 5.524 4.976 G6 4.826 4.310 76 64 12 3.967 G7 89 76 13 G7 89 76 13 H4 50.8 38.1 12.7 ROLL H4 50.8 38.1 12.7 H6 76.2 63.5 12.7 H6 76.2 63.5 12.7 P1 20 0 20 P1 20 0 20 P2 40 20 20 P2 40 20 20 P3 60 40 20 P3 60 40 20 3B 27 11 16 CARBIDE 3B 28 12 16 2B 43 19 24 6.350 5.761 5.367 2B 43 20 23 2BX 63 39 24 5.486 4.798 4.341 2BX 63 40 23 GH2 25.4 12.7 12.7 GH2 25.4 12.7 12.7 GH3 38.1 25.4 12.7 LONG No.12-24UNC GH3 38.1 25.4 12.7 1/4-28UNF GH4 50.8 38.1 12.7 GH4 50.8 38.1 12.7 GH5 63.5 50.8 12.7 GH5 63.5 50.8 12.7 3BX 51 38 13 3BX 51 38 13 2BX 76 64 12 HAND 2BX 76 64 12 G6 76 64 12 TAPS 6.350 5.761 5.367G65.4864.7987664124.341G7897613 H4 50.8 38.1 12.7 H4 50.8 38.1 12.7 H6 76.2 63.5 12.7 H6 76.2 63.5 12.7 EG (STI) P1 20 0 20 P2 40 20 20 P2 40 20 20 P3 60 40 20 P3 60 40 20 3B 32 14 18 3B 27 11 16 2B 49 23 26 SPECIALTHREADS,GAUGES 2B 42 19 235.4864.897 4.5032BX623923 7.938 7.021 6.4112BX744826GH225.412.712.7 GH2 25.4 12.7 12.7 5/16-18UNC GH3 38.1 25.4 12.7 No.12-28UNF GH3 38.1 25.4 12.7 GH5 63.5 50.8 12.7 THREAD GH4 50.8 38.1 12.7 3BX 64 51 13 MILLS GH5 63.5 50.8 12.7 2BX 89 76 13 3BX 51 38 13 G7 7.938 7.021 89 76 13 6.411 2BX 76 64 12 H5 63.5 50.8 12.7 G6 5.486 4.897 76 64 12 4.503 H7 88.9 76.2 12.7 DIES H4 50.8 38.1 12.7 H6 76.2 63.5 12.7 CENTER DRILLS Technical info 676