<P> Number and letter gauge drill bits are still in common use in the U.S. and to a lesser extent the UK, where they have largely been superseded by metric sizes . Other countries that formerly used the number series have for the most part also abandoned these in favour of metric sizes . </P> <Table> <Tr> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 104 </Td> <Td> 0.0031 </Td> <Td> 0.079 </Td> </Tr> <Tr> <Td> 103 </Td> <Td> 0.0035 </Td> <Td> 0.089 </Td> </Tr> <Tr> <Td> 102 </Td> <Td> 0.0039 </Td> <Td> 0.099 </Td> </Tr> <Tr> <Td> 101 </Td> <Td> 0.0043 </Td> <Td> 0.109 </Td> </Tr> <Tr> <Td> 100 </Td> <Td> 0.0047 </Td> <Td> 0.119 </Td> </Tr> <Tr> <Td> 99 </Td> <Td> 0.0051 </Td> <Td> 0.130 </Td> </Tr> <Tr> <Td> 98 </Td> <Td> 0.0055 </Td> <Td> 0.140 </Td> </Tr> <Tr> <Td> 97 </Td> <Td> 0.0059 </Td> <Td> 0.150 </Td> </Tr> <Tr> <Td> 96 </Td> <Td> 0.0063 </Td> <Td> 0.160 </Td> </Tr> <Tr> <Td> 95 </Td> <Td> 0.0067 </Td> <Td> 0.170 </Td> </Tr> <Tr> <Td> 94 </Td> <Td> 0.0071 </Td> <Td> 0.180 </Td> </Tr> <Tr> <Td> 93 </Td> <Td> 0.0075 </Td> <Td> 0.191 </Td> </Tr> <Tr> <Td> 92 </Td> <Td> 0.0079 </Td> <Td> 0.201 </Td> </Tr> <Tr> <Td> 91 </Td> <Td> 0.0083 </Td> <Td> 0.211 </Td> </Tr> <Tr> <Td> 90 </Td> <Td> 0.0087 </Td> <Td> 0.221 </Td> </Tr> <Tr> <Td> 89 </Td> <Td> 0.0091 </Td> <Td> 0.231 </Td> </Tr> <Tr> <Td> 88 </Td> <Td> 0.0095 </Td> <Td> 0.241 </Td> </Tr> <Tr> <Td> 87 </Td> <Td> 0.010 </Td> <Td> 0.254 </Td> </Tr> <Tr> <Td> 86 </Td> <Td> 0.0105 </Td> <Td> 0.267 </Td> </Tr> <Tr> <Td> 85 </Td> <Td> 0.011 </Td> <Td> 0.279 </Td> </Tr> <Tr> <Td> 84 </Td> <Td> 0.0115 </Td> <Td> 0.292 </Td> </Tr> <Tr> <Td> 83 </Td> <Td> 0.012 </Td> <Td> 0.305 </Td> </Tr> <Tr> <Td> 82 </Td> <Td> 0.0125 </Td> <Td> 0.318 </Td> </Tr> <Tr> <Td> 81 </Td> <Td> 0.013 </Td> <Td> 0.330 </Td> </Tr> <Tr> <Td> 80 </Td> <Td> 0.0135 </Td> <Td> 0.343 </Td> </Tr> <Tr> <Td> 79 </Td> <Td> 0.0145 </Td> <Td> 0.368 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 78 </Td> <Td> 0.016 </Td> <Td> 0.406 </Td> </Tr> <Tr> <Td> 77 </Td> <Td> 0.018 </Td> <Td> 0.457 </Td> </Tr> <Tr> <Td> 76 </Td> <Td> 0.020 </Td> <Td> 0.508 </Td> </Tr> <Tr> <Td> 75 </Td> <Td> 0.021 </Td> <Td> 0.533 </Td> </Tr> <Tr> <Td> 74 </Td> <Td> 0.0225 </Td> <Td> 0.572 </Td> </Tr> <Tr> <Td> 73 </Td> <Td> 0.024 </Td> <Td> 0.610 </Td> </Tr> <Tr> <Td> 72 </Td> <Td> 0.025 </Td> <Td> 0.635 </Td> </Tr> <Tr> <Td> 71 </Td> <Td> 0.026 </Td> <Td> 0.660 </Td> </Tr> <Tr> <Td> 70 </Td> <Td> 0.028 </Td> <Td> 0.711 </Td> </Tr> <Tr> <Td> 69 </Td> <Td> 0.0292 </Td> <Td> 0.742 </Td> </Tr> <Tr> <Td> 68 </Td> <Td> 0.031 </Td> <Td> 0.787 </Td> </Tr> <Tr> <Td> 67 </Td> <Td> 0.032 </Td> <Td> 0.813 </Td> </Tr> <Tr> <Td> 66 </Td> <Td> 0.033 </Td> <Td> 0.838 </Td> </Tr> <Tr> <Td> 65 </Td> <Td> 0.035 </Td> <Td> 0.889 </Td> </Tr> <Tr> <Td> 64 </Td> <Td> 0.036 </Td> <Td> 0.914 </Td> </Tr> <Tr> <Td> 63 </Td> <Td> 0.037 </Td> <Td> 0.940 </Td> </Tr> <Tr> <Td> 62 </Td> <Td> 0.038 </Td> <Td> 0.965 </Td> </Tr> <Tr> <Td> 61 </Td> <Td> 0.039 </Td> <Td> 0.991 </Td> </Tr> <Tr> <Td> 60 </Td> <Td> 0.040 </Td> <Td> 1.016 </Td> </Tr> <Tr> <Td> 59 </Td> <Td> 0.041 </Td> <Td> 1.041 </Td> </Tr> <Tr> <Td> 58 </Td> <Td> 0.042 </Td> <Td> 1.067 </Td> </Tr> <Tr> <Td> 57 </Td> <Td> 0.043 </Td> <Td> 1.092 </Td> </Tr> <Tr> <Td> 56 </Td> <Td> 0.0465 </Td> <Td> 1.181 </Td> </Tr> <Tr> <Td> 55 </Td> <Td> 0.052 </Td> <Td> 1.321 </Td> </Tr> <Tr> <Td> 54 </Td> <Td> 0.055 </Td> <Td> 1.397 </Td> </Tr> <Tr> <Td> 53 </Td> <Td> 0.0595 </Td> <Td> 1.511 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 52 </Td> <Td> 0.0635 </Td> <Td> 1.613 </Td> </Tr> <Tr> <Td> 51 </Td> <Td> 0.067 </Td> <Td> 1.702 </Td> </Tr> <Tr> <Td> 50 </Td> <Td> 0.070 </Td> <Td> 1.778 </Td> </Tr> <Tr> <Td> 49 </Td> <Td> 0.073 </Td> <Td> 1.854 </Td> </Tr> <Tr> <Td> 48 </Td> <Td> 0.076 </Td> <Td> 1.930 </Td> </Tr> <Tr> <Td> 47 </Td> <Td> 0.0785 </Td> <Td> 1.994 </Td> </Tr> <Tr> <Td> 46 </Td> <Td> 0.081 </Td> <Td> 2.057 </Td> </Tr> <Tr> <Td> 45 </Td> <Td> 0.082 </Td> <Td> 2.083 </Td> </Tr> <Tr> <Td> 44 </Td> <Td> 0.086 </Td> <Td> 2.184 </Td> </Tr> <Tr> <Td> 43 </Td> <Td> 0.089 </Td> <Td> 2.261 </Td> </Tr> <Tr> <Td> 42 </Td> <Td> 0.0935 </Td> <Td> 2.375 </Td> </Tr> <Tr> <Td> 41 </Td> <Td> 0.096 </Td> <Td> 2.438 </Td> </Tr> <Tr> <Td> 40 </Td> <Td> 0.098 </Td> <Td> 2.489 </Td> </Tr> <Tr> <Td> 39 </Td> <Td> 0.0995 </Td> <Td> 2.527 </Td> </Tr> <Tr> <Td> 38 </Td> <Td> 0.1015 </Td> <Td> 2.578 </Td> </Tr> <Tr> <Td> 37 </Td> <Td> 0.104 </Td> <Td> 2.642 </Td> </Tr> <Tr> <Td> 36 </Td> <Td> 0.1065 </Td> <Td> 2.705 </Td> </Tr> <Tr> <Td> 35 </Td> <Td> 0.110 </Td> <Td> 2.794 </Td> </Tr> <Tr> <Td> 34 </Td> <Td> 0.111 </Td> <Td> 2.819 </Td> </Tr> <Tr> <Td> 33 </Td> <Td> 0.113 </Td> <Td> 2.870 </Td> </Tr> <Tr> <Td> 32 </Td> <Td> 0.116 </Td> <Td> 2.946 </Td> </Tr> <Tr> <Td> 31 </Td> <Td> 0.120 </Td> <Td> 3.048 </Td> </Tr> <Tr> <Td> 30 </Td> <Td> 0.1285 </Td> <Td> 3.264 </Td> </Tr> <Tr> <Td> 29 </Td> <Td> 0.136 </Td> <Td> 3.454 </Td> </Tr> <Tr> <Td> 28 </Td> <Td> 0.1405 </Td> <Td> 3.569 </Td> </Tr> <Tr> <Td> 27 </Td> <Td> 0.144 </Td> <Td> 3.658 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 26 </Td> <Td> 0.147 </Td> <Td> 3.734 </Td> </Tr> <Tr> <Td> 25 </Td> <Td> 0.1495 </Td> <Td> 3.797 </Td> </Tr> <Tr> <Td> 24 </Td> <Td> 0.152 </Td> <Td> 3.861 </Td> </Tr> <Tr> <Td> 23 </Td> <Td> 0.154 </Td> <Td> 3.912 </Td> </Tr> <Tr> <Td> 22 </Td> <Td> 0.157 </Td> <Td> 3.988 </Td> </Tr> <Tr> <Td> 21 </Td> <Td> 0.159 </Td> <Td> 4.039 </Td> </Tr> <Tr> <Td> 20 </Td> <Td> 0.161 </Td> <Td> 4.089 </Td> </Tr> <Tr> <Td> 19 </Td> <Td> 0.166 </Td> <Td> 4.216 </Td> </Tr> <Tr> <Td> 18 </Td> <Td> 0.1695 </Td> <Td> 4.305 </Td> </Tr> <Tr> <Td> 17 </Td> <Td> 0.173 </Td> <Td> 4.394 </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 0.177 </Td> <Td> 4.496 </Td> </Tr> <Tr> <Td> 15 </Td> <Td> 0.180 </Td> <Td> 4.572 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> 0.182 </Td> <Td> 4.623 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> 0.185 </Td> <Td> 4.699 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> 0.189 </Td> <Td> 4.801 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> 0.191 </Td> <Td> 4.851 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> 0.1935 </Td> <Td> 4.915 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> 0.196 </Td> <Td> 4.978 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> 0.199 </Td> <Td> 5.055 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> 0.201 </Td> <Td> 5.105 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> 0.204 </Td> <Td> 5.182 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> 0.2055 </Td> <Td> 5.220 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.209 </Td> <Td> 5.309 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.213 </Td> <Td> 5.410 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.221 </Td> <Td> 5.613 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.228 </Td> <Td> 5.791 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> </Td> <Td> 0.234 </Td> <Td> 5.944 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.238 </Td> <Td> 6.045 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.242 </Td> <Td> 6.147 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.246 </Td> <Td> 6.248 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.250 </Td> <Td> 6.350 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.257 </Td> <Td> 6.528 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.261 </Td> <Td> 6.629 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.266 </Td> <Td> 6.756 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.272 </Td> <Td> 6.909 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.277 </Td> <Td> 7.036 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.281 </Td> <Td> 7.137 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.290 </Td> <Td> 7.366 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.295 </Td> <Td> 7.493 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.302 </Td> <Td> 7.671 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.316 </Td> <Td> 8.026 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.323 </Td> <Td> 8.204 </Td> </Tr> <Tr> <Td> Q </Td> <Td> 0.332 </Td> <Td> 8.433 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.339 </Td> <Td> 8.611 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.348 </Td> <Td> 8.839 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.358 </Td> <Td> 9.093 </Td> </Tr> <Tr> <Td> U </Td> <Td> 0.368 </Td> <Td> 9.347 </Td> </Tr> <Tr> <Td> V </Td> <Td> 0.377 </Td> <Td> 9.576 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.386 </Td> <Td> 9.804 </Td> </Tr> <Tr> <Td> X </Td> <Td> 0.397 </Td> <Td> 10.08 </Td> </Tr> <Tr> <Td> Y </Td> <Td> 0.404 </Td> <Td> 10.26 </Td> </Tr> <Tr> <Td> Z </Td> <Td> 0.413 </Td> <Td> 10.49 </Td> </Tr> </Table> <P> </P> </Td> </Tr> </Table> <Tr> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 104 </Td> <Td> 0.0031 </Td> <Td> 0.079 </Td> </Tr> <Tr> <Td> 103 </Td> <Td> 0.0035 </Td> <Td> 0.089 </Td> </Tr> <Tr> <Td> 102 </Td> <Td> 0.0039 </Td> <Td> 0.099 </Td> </Tr> <Tr> <Td> 101 </Td> <Td> 0.0043 </Td> <Td> 0.109 </Td> </Tr> <Tr> <Td> 100 </Td> <Td> 0.0047 </Td> <Td> 0.119 </Td> </Tr> <Tr> <Td> 99 </Td> <Td> 0.0051 </Td> <Td> 0.130 </Td> </Tr> <Tr> <Td> 98 </Td> <Td> 0.0055 </Td> <Td> 0.140 </Td> </Tr> <Tr> <Td> 97 </Td> <Td> 0.0059 </Td> <Td> 0.150 </Td> </Tr> <Tr> <Td> 96 </Td> <Td> 0.0063 </Td> <Td> 0.160 </Td> </Tr> <Tr> <Td> 95 </Td> <Td> 0.0067 </Td> <Td> 0.170 </Td> </Tr> <Tr> <Td> 94 </Td> <Td> 0.0071 </Td> <Td> 0.180 </Td> </Tr> <Tr> <Td> 93 </Td> <Td> 0.0075 </Td> <Td> 0.191 </Td> </Tr> <Tr> <Td> 92 </Td> <Td> 0.0079 </Td> <Td> 0.201 </Td> </Tr> <Tr> <Td> 91 </Td> <Td> 0.0083 </Td> <Td> 0.211 </Td> </Tr> <Tr> <Td> 90 </Td> <Td> 0.0087 </Td> <Td> 0.221 </Td> </Tr> <Tr> <Td> 89 </Td> <Td> 0.0091 </Td> <Td> 0.231 </Td> </Tr> <Tr> <Td> 88 </Td> <Td> 0.0095 </Td> <Td> 0.241 </Td> </Tr> <Tr> <Td> 87 </Td> <Td> 0.010 </Td> <Td> 0.254 </Td> </Tr> <Tr> <Td> 86 </Td> <Td> 0.0105 </Td> <Td> 0.267 </Td> </Tr> <Tr> <Td> 85 </Td> <Td> 0.011 </Td> <Td> 0.279 </Td> </Tr> <Tr> <Td> 84 </Td> <Td> 0.0115 </Td> <Td> 0.292 </Td> </Tr> <Tr> <Td> 83 </Td> <Td> 0.012 </Td> <Td> 0.305 </Td> </Tr> <Tr> <Td> 82 </Td> <Td> 0.0125 </Td> <Td> 0.318 </Td> </Tr> <Tr> <Td> 81 </Td> <Td> 0.013 </Td> <Td> 0.330 </Td> </Tr> <Tr> <Td> 80 </Td> <Td> 0.0135 </Td> <Td> 0.343 </Td> </Tr> <Tr> <Td> 79 </Td> <Td> 0.0145 </Td> <Td> 0.368 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 78 </Td> <Td> 0.016 </Td> <Td> 0.406 </Td> </Tr> <Tr> <Td> 77 </Td> <Td> 0.018 </Td> <Td> 0.457 </Td> </Tr> <Tr> <Td> 76 </Td> <Td> 0.020 </Td> <Td> 0.508 </Td> </Tr> <Tr> <Td> 75 </Td> <Td> 0.021 </Td> <Td> 0.533 </Td> </Tr> <Tr> <Td> 74 </Td> <Td> 0.0225 </Td> <Td> 0.572 </Td> </Tr> <Tr> <Td> 73 </Td> <Td> 0.024 </Td> <Td> 0.610 </Td> </Tr> <Tr> <Td> 72 </Td> <Td> 0.025 </Td> <Td> 0.635 </Td> </Tr> <Tr> <Td> 71 </Td> <Td> 0.026 </Td> <Td> 0.660 </Td> </Tr> <Tr> <Td> 70 </Td> <Td> 0.028 </Td> <Td> 0.711 </Td> </Tr> <Tr> <Td> 69 </Td> <Td> 0.0292 </Td> <Td> 0.742 </Td> </Tr> <Tr> <Td> 68 </Td> <Td> 0.031 </Td> <Td> 0.787 </Td> </Tr> <Tr> <Td> 67 </Td> <Td> 0.032 </Td> <Td> 0.813 </Td> </Tr> <Tr> <Td> 66 </Td> <Td> 0.033 </Td> <Td> 0.838 </Td> </Tr> <Tr> <Td> 65 </Td> <Td> 0.035 </Td> <Td> 0.889 </Td> </Tr> <Tr> <Td> 64 </Td> <Td> 0.036 </Td> <Td> 0.914 </Td> </Tr> <Tr> <Td> 63 </Td> <Td> 0.037 </Td> <Td> 0.940 </Td> </Tr> <Tr> <Td> 62 </Td> <Td> 0.038 </Td> <Td> 0.965 </Td> </Tr> <Tr> <Td> 61 </Td> <Td> 0.039 </Td> <Td> 0.991 </Td> </Tr> <Tr> <Td> 60 </Td> <Td> 0.040 </Td> <Td> 1.016 </Td> </Tr> <Tr> <Td> 59 </Td> <Td> 0.041 </Td> <Td> 1.041 </Td> </Tr> <Tr> <Td> 58 </Td> <Td> 0.042 </Td> <Td> 1.067 </Td> </Tr> <Tr> <Td> 57 </Td> <Td> 0.043 </Td> <Td> 1.092 </Td> </Tr> <Tr> <Td> 56 </Td> <Td> 0.0465 </Td> <Td> 1.181 </Td> </Tr> <Tr> <Td> 55 </Td> <Td> 0.052 </Td> <Td> 1.321 </Td> </Tr> <Tr> <Td> 54 </Td> <Td> 0.055 </Td> <Td> 1.397 </Td> </Tr> <Tr> <Td> 53 </Td> <Td> 0.0595 </Td> <Td> 1.511 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 52 </Td> <Td> 0.0635 </Td> <Td> 1.613 </Td> </Tr> <Tr> <Td> 51 </Td> <Td> 0.067 </Td> <Td> 1.702 </Td> </Tr> <Tr> <Td> 50 </Td> <Td> 0.070 </Td> <Td> 1.778 </Td> </Tr> <Tr> <Td> 49 </Td> <Td> 0.073 </Td> <Td> 1.854 </Td> </Tr> <Tr> <Td> 48 </Td> <Td> 0.076 </Td> <Td> 1.930 </Td> </Tr> <Tr> <Td> 47 </Td> <Td> 0.0785 </Td> <Td> 1.994 </Td> </Tr> <Tr> <Td> 46 </Td> <Td> 0.081 </Td> <Td> 2.057 </Td> </Tr> <Tr> <Td> 45 </Td> <Td> 0.082 </Td> <Td> 2.083 </Td> </Tr> <Tr> <Td> 44 </Td> <Td> 0.086 </Td> <Td> 2.184 </Td> </Tr> <Tr> <Td> 43 </Td> <Td> 0.089 </Td> <Td> 2.261 </Td> </Tr> <Tr> <Td> 42 </Td> <Td> 0.0935 </Td> <Td> 2.375 </Td> </Tr> <Tr> <Td> 41 </Td> <Td> 0.096 </Td> <Td> 2.438 </Td> </Tr> <Tr> <Td> 40 </Td> <Td> 0.098 </Td> <Td> 2.489 </Td> </Tr> <Tr> <Td> 39 </Td> <Td> 0.0995 </Td> <Td> 2.527 </Td> </Tr> <Tr> <Td> 38 </Td> <Td> 0.1015 </Td> <Td> 2.578 </Td> </Tr> <Tr> <Td> 37 </Td> <Td> 0.104 </Td> <Td> 2.642 </Td> </Tr> <Tr> <Td> 36 </Td> <Td> 0.1065 </Td> <Td> 2.705 </Td> </Tr> <Tr> <Td> 35 </Td> <Td> 0.110 </Td> <Td> 2.794 </Td> </Tr> <Tr> <Td> 34 </Td> <Td> 0.111 </Td> <Td> 2.819 </Td> </Tr> <Tr> <Td> 33 </Td> <Td> 0.113 </Td> <Td> 2.870 </Td> </Tr> <Tr> <Td> 32 </Td> <Td> 0.116 </Td> <Td> 2.946 </Td> </Tr> <Tr> <Td> 31 </Td> <Td> 0.120 </Td> <Td> 3.048 </Td> </Tr> <Tr> <Td> 30 </Td> <Td> 0.1285 </Td> <Td> 3.264 </Td> </Tr> <Tr> <Td> 29 </Td> <Td> 0.136 </Td> <Td> 3.454 </Td> </Tr> <Tr> <Td> 28 </Td> <Td> 0.1405 </Td> <Td> 3.569 </Td> </Tr> <Tr> <Td> 27 </Td> <Td> 0.144 </Td> <Td> 3.658 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 26 </Td> <Td> 0.147 </Td> <Td> 3.734 </Td> </Tr> <Tr> <Td> 25 </Td> <Td> 0.1495 </Td> <Td> 3.797 </Td> </Tr> <Tr> <Td> 24 </Td> <Td> 0.152 </Td> <Td> 3.861 </Td> </Tr> <Tr> <Td> 23 </Td> <Td> 0.154 </Td> <Td> 3.912 </Td> </Tr> <Tr> <Td> 22 </Td> <Td> 0.157 </Td> <Td> 3.988 </Td> </Tr> <Tr> <Td> 21 </Td> <Td> 0.159 </Td> <Td> 4.039 </Td> </Tr> <Tr> <Td> 20 </Td> <Td> 0.161 </Td> <Td> 4.089 </Td> </Tr> <Tr> <Td> 19 </Td> <Td> 0.166 </Td> <Td> 4.216 </Td> </Tr> <Tr> <Td> 18 </Td> <Td> 0.1695 </Td> <Td> 4.305 </Td> </Tr> <Tr> <Td> 17 </Td> <Td> 0.173 </Td> <Td> 4.394 </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 0.177 </Td> <Td> 4.496 </Td> </Tr> <Tr> <Td> 15 </Td> <Td> 0.180 </Td> <Td> 4.572 </Td> </Tr> <Tr> <Td> 14 </Td> <Td> 0.182 </Td> <Td> 4.623 </Td> </Tr> <Tr> <Td> 13 </Td> <Td> 0.185 </Td> <Td> 4.699 </Td> </Tr> <Tr> <Td> 12 </Td> <Td> 0.189 </Td> <Td> 4.801 </Td> </Tr> <Tr> <Td> 11 </Td> <Td> 0.191 </Td> <Td> 4.851 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> 0.1935 </Td> <Td> 4.915 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> 0.196 </Td> <Td> 4.978 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> 0.199 </Td> <Td> 5.055 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> 0.201 </Td> <Td> 5.105 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> 0.204 </Td> <Td> 5.182 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> 0.2055 </Td> <Td> 5.220 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.209 </Td> <Td> 5.309 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.213 </Td> <Td> 5.410 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.221 </Td> <Td> 5.613 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.228 </Td> <Td> 5.791 </Td> </Tr> </Table> <P> </P> </Td> <Td> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> </Td> <Td> 0.234 </Td> <Td> 5.944 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.238 </Td> <Td> 6.045 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.242 </Td> <Td> 6.147 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.246 </Td> <Td> 6.248 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.250 </Td> <Td> 6.350 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.257 </Td> <Td> 6.528 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.261 </Td> <Td> 6.629 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.266 </Td> <Td> 6.756 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.272 </Td> <Td> 6.909 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.277 </Td> <Td> 7.036 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.281 </Td> <Td> 7.137 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.290 </Td> <Td> 7.366 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.295 </Td> <Td> 7.493 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.302 </Td> <Td> 7.671 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.316 </Td> <Td> 8.026 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.323 </Td> <Td> 8.204 </Td> </Tr> <Tr> <Td> Q </Td> <Td> 0.332 </Td> <Td> 8.433 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.339 </Td> <Td> 8.611 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.348 </Td> <Td> 8.839 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.358 </Td> <Td> 9.093 </Td> </Tr> <Tr> <Td> U </Td> <Td> 0.368 </Td> <Td> 9.347 </Td> </Tr> <Tr> <Td> V </Td> <Td> 0.377 </Td> <Td> 9.576 </Td> </Tr> <Tr> <Td> </Td> <Td> 0.386 </Td> <Td> 9.804 </Td> </Tr> <Tr> <Td> X </Td> <Td> 0.397 </Td> <Td> 10.08 </Td> </Tr> <Tr> <Td> Y </Td> <Td> 0.404 </Td> <Td> 10.26 </Td> </Tr> <Tr> <Td> Z </Td> <Td> 0.413 </Td> <Td> 10.49 </Td> </Tr> </Table> <P> </P> </Td> </Tr> <Table> <Tr> <Th> gauge </Th> <Th> in </Th> <Th> mm </Th> </Tr> <Tr> <Td> 104 </Td> <Td> 0.0031 </Td> <Td> 0.079 </Td> </Tr> <Tr> <Td> 103 </Td> <Td> 0.0035 </Td> <Td> 0.089 </Td> </Tr> <Tr> <Td> 102 </Td> <Td> 0.0039 </Td> <Td> 0.099 </Td> </Tr> <Tr> <Td> 101 </Td> <Td> 0.0043 </Td> <Td> 0.109 </Td> </Tr> <Tr> <Td> 100 </Td> <Td> 0.0047 </Td> <Td> 0.119 </Td> </Tr> <Tr> <Td> 99 </Td> <Td> 0.0051 </Td> <Td> 0.130 </Td> </Tr> <Tr> <Td> 98 </Td> <Td> 0.0055 </Td> <Td> 0.140 </Td> </Tr> <Tr> <Td> 97 </Td> <Td> 0.0059 </Td> <Td> 0.150 </Td> </Tr> <Tr> <Td> 96 </Td> <Td> 0.0063 </Td> <Td> 0.160 </Td> </Tr> <Tr> <Td> 95 </Td> <Td> 0.0067 </Td> <Td> 0.170 </Td> </Tr> <Tr> <Td> 94 </Td> <Td> 0.0071 </Td> <Td> 0.180 </Td> </Tr> <Tr> <Td> 93 </Td> <Td> 0.0075 </Td> <Td> 0.191 </Td> </Tr> <Tr> <Td> 92 </Td> <Td> 0.0079 </Td> <Td> 0.201 </Td> </Tr> <Tr> <Td> 91 </Td> <Td> 0.0083 </Td> <Td> 0.211 </Td> </Tr> <Tr> <Td> 90 </Td> <Td> 0.0087 </Td> <Td> 0.221 </Td> </Tr> <Tr> <Td> 89 </Td> <Td> 0.0091 </Td> <Td> 0.231 </Td> </Tr> <Tr> <Td> 88 </Td> <Td> 0.0095 </Td> <Td> 0.241 </Td> </Tr> <Tr> <Td> 87 </Td> <Td> 0.010 </Td> <Td> 0.254 </Td> </Tr> <Tr> <Td> 86 </Td> <Td> 0.0105 </Td> <Td> 0.267 </Td> </Tr> <Tr> <Td> 85 </Td> <Td> 0.011 </Td> <Td> 0.279 </Td> </Tr> <Tr> <Td> 84 </Td> <Td> 0.0115 </Td> <Td> 0.292 </Td> </Tr> <Tr> <Td> 83 </Td> <Td> 0.012 </Td> <Td> 0.305 </Td> </Tr> <Tr> <Td> 82 </Td> <Td> 0.0125 </Td> <Td> 0.318 </Td> </Tr> <Tr> <Td> 81 </Td> <Td> 0.013 </Td> <Td> 0.330 </Td> </Tr> <Tr> <Td> 80 </Td> <Td> 0.0135 </Td> <Td> 0.343 </Td> </Tr> <Tr> <Td> 79 </Td> <Td> 0.0145 </Td> <Td> 0.368 </Td> </Tr> </Table>

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