26. Bar diameter for cutting dies Intro Metric Threads (M. MF) Unit: mm SP Major diameter of external threads Major diameter of external threads Bar Diameter Bar Diameter Size ISO old JIS Size ISO old JIS Max. Min. Max. Min. ISO old JIS Max. Min. Max. Min. ISO old JIS M1 × 0.25 1.000 0.933 0.985 0.940 0.95 0.95 MF11 × 1 10.974 10.794 10.970 10.820 10.84 10.86 SL MF1 × 0.2 1.000 0.944 0.980 0.930 0.96 0.94 MF11 × 0.75 10.978 10.838 10.978 10.838 10.87 10.87 M1.1 × 0.25 1.100 1.033 1.100 1.033 1.05 1.05 M12 × 1.75 11.966 11.701 11.950 11.760 11.8 11.8 MF1.1 × 0.2 1.100 1.044 1.100 1.044 1.06 1.06 MF12 × 1.5 11.968 11.732 11.960 11.790 11.8 11.8 M1.2 × 0.25 1.200 1.133 1.185 1.140 1.15 1.15 MF12 × 1.25 11.972 11.760 11.972 11.760 11.8 11.8 PO MF1.2 × 0.2 1.200 1.144 1.180 1.130 1.16 1.14 MF12 × 1 11.974 11.794 11.960 11.810 11.84 11.85 M1.4 × 0.3 1.400 1.325 1.380 1.320 1.34 1.34 M14 × 2 13.962 13.682 13.950 13.740 13.8 13.8 MF1.4 × 0.2 1.400 1.344 1.380 1.330 1.36 1.34 MF14 × 1.5 13.968 13.732 13.960 13.790 13.8 13.8 M1.6 × 0.35 1.581 1.496 1.581 1.496 1.52 1.52 MF14 × 1 13.974 13.794 13.960 13.810 13.84 13.85 MF1.6 × 0.2 1.583 1.527 1.583 1.527 1.54 1.54 MF15 × 1.5 14.968 14.732 14.960 14.790 14.8 14.8 ST M1.7 × 0.35 1.681 1.596 1.680 1.610 1.62 1.63 MF15 × 1 14.974 14.794 14.960 14.810 14.84 14.85 MF1.7 × 0.2 1.683 1.627 1.680 1.630 1.64 1.64 M16 × 2 15.962 15.682 15.950 15.740 15.8 15.8 M1.8 × 0.35 1.781 1.696 1.781 1.696 1.72 1.72 MF16 × 1.5 15.968 15.732 15.960 15.790 15.8 15.8 MF1.8 × 0.2 1.783 1.727 1.783 1.727 1.74 1.74 MF16 × 1 15.974 15.794 15.960 15.810 15.84 15.85 ROLL M2 × 0.4 1.981 1.886 1.980 1.890 1.91 1.91 MF17 × 1.5 16.968 16.732 16.968 16.732 16.8 16.8 MF2 × 0.25 1.982 1.915 1.980 1.930 1.93 1.94 MF17 × 1 16.974 16.794 16.974 16.794 16.84 16.84 M2.2 × 0.45 2.180 2.080 2.180 2.080 2.11 2.11 M18 × 2.5 17.958 17.623 17.950 17.710 17.7 17.8 MF2.2 × 0.25 2.182 2.115 2.182 2.115 2.13 2.13 MF18 × 2 17.962 17.682 17.950 17.650 17.8 17.7 CARBIDE M2.3 × 0.4 2.281 2.186 2.280 2.190 2.21 2.21 MF18 × 1.5 17.968 17.732 17.950 17.780 17.8 17.8 MF2.3 × 0.25 2.282 2.215 2.280 2.230 2.23 2.24 MF18 × 1 17.974 17.794 17.960 17.810 17.84 17.85 M2.5 × 0.45 2.480 2.380 2.480 2.380 2.41 2.41 M20 × 2.5 19.958 19.623 19.950 19.710 19.7 19.8 MF2.5 × 0.35 2.481 2.396 2.481 2.396 2.42 2.42 MF20 × 2 19.962 19.682 19.950 19.650 19.8 19.7 LONG M2.6 × 0.45 2.580 2.480 2.580 2.480 2.51 2.51 MF20 × 1.5 19.968 19.732 19.950 19.780 19.8 19.8 MF2.6 × 0.35 2.581 2.496 2.580 2.480 2.52 2.51 MF20 × 1 19.974 19.794 19.960 19.810 19.84 19.85 M3 × 0.5 2.980 2.874 2.980 2.874 2.90 2.90 M22 × 2.5 21.958 21.623 21.950 21.710 21.7 21.8 MF3 × 0.35 2.981 2.896 2.980 2.880 2.92 2.91 MF22 × 2 21.962 21.682 21.950 21.650 21.8 21.7 HAND M3.5 × 0.6 3.479 3.354 3.470 3.360 3.39 3.39 MF22 × 1.5 21.968 21.732 21.950 21.780 21.8 21.8 TAPS MF3.5 × 0.35 3.481 3.396 3.480 3.380 3.42 3.41 MF22 × 1 21.974 21.794 21.960 21.810 21.84 21.85 M4 × 0.7 3.978 3.838 3.978 3.838 3.87 3.87 M24 × 3 23.952 23.577 23.940 23.680 23.7 23.7 MF4 × 0.5 3.980 3.874 3.970 3.860 3.90 3.89 MF24 × 2 23.962 23.682 23.940 23.640 23.8 23.7 M4.5 × 0.75 4.478 4.338 4.470 4.340 4.37 4.37 MF24 × 1.5 23.968 23.732 23.950 23.780 23.8 23.8 EG (STI) MF4.5 × 0.5 4.480 4.374 4.470 4.360 4.40 4.39 MF24 × 1 23.974 23.794 23.960 23.810 23.84 23.85 M5 × 0.8 4.976 4.826 4.976 4.826 4.86 4.86 MF25 × 2 24.962 24.682 24.940 24.640 24.8 24.7 MF5 × 0.5 4.980 4.874 4.970 4.860 4.90 4.89 MF25 × 1.5 24.968 24.732 24.950 24.780 24.8 24.8 SPECIAL MF5.5 × 0.5 5.480 5.374 5.470 5.360 5.40 5.39 MF25 × 1 24.974 24.794 24.960 24.810 24.84 24.85 THREADS, M6 × 1 5.974 5.794 5.970 5.820 5.84 5.86 MF26 × 1.5 25.968 25.732 25.950 25.780 25.8 25.8 GAUGES MF6 × 0.75 5.978 5.838 5.970 5.850 5.87 5.88 M27 × 3 26.952 26.577 26.940 26.680 26.7 26.7 M7 × 1 6.974 6.794 6.970 6.820 6.84 6.86 MF27 × 2 26.962 26.682 26.962 26.682 26.8 26.8 MF7 × 0.75 6.978 6.838 6.970 6.850 6.87 6.88 MF27 × 1.5 26.968 26.732 26.950 26.780 26.8 26.8 THREAD M8 × 1.25 7.972 7.760 7.960 7.790 7.81 7.83 MF27 × 1 26.974 26.794 26.974 26.794 26.84 26.84 MILLS MF8 × 1 7.974 7.794 7.970 7.830 7.84 7.87 MF28 × 2 27.962 27.682 27.940 27.640 27.8 27.7 MF8 × 0.75 7.978 7.838 7.970 7.830 7.87 7.87 MF28 × 1.5 27.968 27.732 27.950 27.780 27.8 27.8 M9 × 1.25 8.972 8.760 8.960 8.790 8.81 8.83 MF28 × 1 27.974 27.794 27.960 27.810 27.84 27.85 DIES MF9 × 1 8.974 8.794 8.970 8.830 8.84 8.87 M30 × 3.5 29.947 29.522 29.940 29.660 29.6 29.7 MF9 × 0.75 8.978 8.838 8.970 8.830 8.87 8.87 MF30 × 3 29.952 29.577 29.952 29.577 29.7 29.7 M10 × 1.5 9.968 9.732 9.960 9.770 9.79 9.82 MF30 × 2 29.962 29.682 29.940 29.640 29.8 29.7 MF10 × 1.25 9.972 9.760 9.960 9.810 9.81 9.85 MF30 × 1.5 29.968 29.732 29.950 29.780 29.8 29.8 CENTER MF10 × 1 9.974 9.794 9.970 9.820 9.84 9.86 MF30 × 1 29.974 29.794 29.960 29.810 29.84 29.85 DRILLS MF10 × 0.75 9.978 9.838 9.978 9.838 9.87 9.87 MF32 × 2 31.962 31.682 31.940 31.640 31.8 31.7 M11 × 1.5 10.968 10.732 10.968 10.732 10.79 10.79 MF32 × 1.5 31.968 31.732 31.950 31.780 31.8 31.8 Technical info 730