Diameter (mm) | Diameter (inches) |
Cross Sectional Area (mm2) |
Inch Fraction Drill |
14.732 | 0.5800 | 170.45625 | |
13.1191 | 0.5165 | 135.1754 | |
12.70 | 0.5000 | 126.6767 | 1/2 |
12.446 | 0.4900 | 121.660 | |
12.303 | 0.4844 | 118.9 | 31/64 |
11.90 | 0.4688 | 111.36 | 15/32 |
11.7856 | 0.464 | 109.092 | |
11.7221 | 0.4615 | 107.92 | |
11.684 | 0.4600 | 107.219 | |
11.5316 | 0.454 | 104.452 | |
11.508 | 0.4531 | 104.03 | 29/64 |
11.11 | 0.4375 | 96.99 | 7/16 |
10.9728 | 0.432 | 94.5637 | |
10.9347 | 0.4305 | 93.908 | |
10.795 | 0.425 | 91.524 | |
10.72 | 0.4219 | 90.19 | 27/64 |
10.50 | 0.4134 | 86.590 | |
10.40384 | 0.4096 | 85.01 | |
10.3175 | 0.4062 | 83.60 | 13/32 |
10.30 | 0.4055 | 83.32 | |
10.160 | 0.400 | 81.073 | |
10.10 | 0.3976 | 80.12 | |
10.00252 | 0.3938 | 78.54 | |
9.92 | 0.3906 | 77.30 | 25/64 |
9.652 | 0.380 | 73.168 | |
9.525 | 0.3750 | 71.26 | 3/8 |
9.4488 | 0.372 | 70.12 | |
9.30 | 0.3661 | 67.93 | |
9.26592 | 0.3648 | 67.432 | |
9.2075 | 0.3625 | 66.58 | |
9.129 | 0.3594 | 65.45 | 23/64 |
9.10 | 0.3583 | 65.04 | |
8.8392 | 0.348 | 61.36 | |
8.80 | 0.3465 | 60.82 | |
8.73 | 0.3438 | 59.89 | 11/32 |
8.636 | 0.340 | 58.58 | |
8.60 | 0.3386 | 58.09 | |
8.4074 | 0.3310 | 55.52 | |
8.400 | 0.3307 | 55.42 | |
8.25246 | 0.3249 | 53.49 | |
8.23 | 0.3240 | 53.19 | |
8.20 | 0.3228 | 52.81 | 21/64 |
8.00 | 0.315 | 50.27 | |
7.9375 | 0.3125 | 49.483 | 5/16 |
7.7851 | 0.3065 | 47.60 | |
7.70 | 0.3031 | 46.57 | |
7.62 | 0.3000 | 45.60 | |
7.541 | 0.2969 | 44.666 | 19/64 |
7.50 | 0.2953 | 44.18 | |
7.40 | 0.2913 | 43.00 | |
7.348 | 0.2893 | 42.41 | |
7.2136 | 0.284 | 40.87 | |
7.188 | 0.2830 | 40.58 | |
7.142 | 0.2812 | 40.07 | 9/32 |
7.01 | 0.276 | 38.59 | |
7.00 | 0.2756 | 38.48 | |
6.90 | 0.2717 | 37.39 | |
6.746 | 0.2656 | 35.74 | 17/64 |
6.667 | 0.2625 | 34.92 | |
6.60 | 0.2598 | 34.21 | |
6.579 | 0.259 | 33.99 | |
6.543 | 0.2576 | 33.62 | |
6.50 | 0.2559 | 33.18 | |
6.40 | 0.252 | 32.17 | |
6.350 | 0.250 | 31.67 | 1/4 |
6.20 | 0.2441 | 30.19 | |
6.19 | 0.2437 | 30.09 | |
6.10 | 0.2402 | 29.22 | |
6.045 | 0.238 | 28.70 | |
6.00 | 0.2362 | 28.27 | |
5.94 | 0.2344 | 27.84 | 15/64 |
5.89 | 0.232 | 27.25 | |
5.827 | 0.2294 | 26.66 | |
5.8 | 0.2283 | 26.42 | |
5.723 | 0.2253 | 25.72 | |
5.588 | 0.220 | 24.52 | |
5.55625 | 0.21875 | 24.246 | 7/32 |
5.38 | 0.212 | 22.73 | |
5.30 | 0.2087 | 22.06 | |
5.258 | 0.2070 | 21.71 | |
5.20 | 0.2047 | 21.237 | |
5.189 | 0.2043 | 21.15 | |
5.156 | 0.203 | 20.88 | 13/64 |
5.10 | 0.2008 | 20.428 | |
5.00 | 0.1968 | 19.635 | |
4.90 | 0.1929 | 18.857 | |
4.88 | 0.192 | 18.70 | |
4.80 | 0.189 | 18.095 | |
4.7625 | 0.1875 | 17.81 | 3/16 |
4.70 | 0.185 | 17.349 | |
4.62 | 0.1819 | 16.76385 | |
4.572 | 0.180 | 16.42 | |
4.496 | 0.1770 | 15.875 | |
4.47 | 0.176 | 15.69 | |
4.40 | 0.1732 | 15.20 | |
4.366 | 0.1719 | 14.97 | 11/64 |
4.30 | 0.1693 | 14.52 | |
4.19 | 0.165 | 13.795 | |
4.115 | 0.162 | 13.298 | |
4.10 | 0.1614 | 13.20 | |
4.06 | 0.160 | 12.95 | |
4.00 | 0.1575 | 12.566 | |
3.969 | 0.15625 | 12.370 | 5/32 |
3.90 | 0.1535 | 11.946 | |
3.80 | 0.1496 | 11.34 | |
3.76 | 0.148 | 11.099 | |
3.7338 | 0.147 | 10.949 | |
3.66 | 0.144 | 10.52 | |
3.57 | 0.1406 | 10.02 | 9/64 |
3.50 | 0.1378 | 9.62 | |
3.429 | 0.1350 | 9.23 | |
3.40 | 0.134 | 9.098 | |
3.30 | 0.1299 | 8.553 | |
3.25 | 0.128 | 8.296 | |
3.175 | 0.125 | 7.917 | 1/8 |
3.048 | 0.120 | 7.2966 | |
3.00 | 0.1181 | 7.068 | |
2.95 | 0.116 | 6.835 | |
2.90 | 0.1144 | 6.63 | |
2.85 | 0.1122 | 6.379 | |
2.80 | 0.1102 | 6.153 | |
2.769 | 0.109 | 6.020 | 7/64 |
2.70 | 0.1063 | 5.725 | |
2.68 | 0.1055 | 5.64 | |
2.64 | 0.104 | 5.474 | |
2.60 | 0.1024 | 5.31 | |
2.586 | 0.1018 | 5.25 | |
2.55 | 0.1004 | 5.10 | |
2.50 | 0.0984 | 4.90 | |
2.45 | 0.0965 | 4.71 | |
2.413 | 0.095 | 4.573 | |
2.38 | 0.0938 | 4.458 | 3/32 |
2.34 | 0.092 | 4.300 | |
2.324 | 0.0915 | 4.242 | |
2.30 | 0.0907 | 4.168 | |
2.257 | 0.08885 | 4.00 | |
2.20 | 0.0866 | 3.80 | |
2.108 | 0.083 | 3.490 | |
2.10 | 0.0827 | 3.46 | |
2.05 | 0.0807 | 3.300 | |
2.03 | 0.080 | 3.237 | |
2.00 | 0.0787 | 3.14159 | |
1.98 | 0.0781 | 3.090 | 5/64 |
1.95 | 0.0768 | 2.986 | |
1.85 | 0.0728 | 2.688 | |
1.83 | 0.072 | 2.630 | |
1.784 | 0.0702 | 2.50 | |
1.70 | 0.0669 | 2.269 | |
1.651 | 0.065 | 2.14 | |
1.63 | 0.064 | 2.086 | |
1.60 | 0.063 | 2.011 | |
1.5875 | 0.0625 | 1.98 | 1/16 |
1.50 | 0.059 | 1.767 | |
1.473 | 0.058 | 1.70 | |
1.448 | 0.0570 | 1.646 | |
1.42 | 0.056 | 1.584 | |
1.40 | 0.055 | 1.539 | |
1.382 | 0.0544 | 1.50 | |
1.30 | 0.0512 | 1.327 | |
1.290 | 0.0508 | 1.30 | |
1.2446 | 0.049 | 1.2166 | |
1.22 | 0.048 | 1.169 | |
1.2065 | 0.0475 | 1.143 | |
1.181 | 0.0465 | 1.0956 | 3/64 |
1.148 | 0.0452 | 1.035 | |
1.128 | 0.0444 | 1.00 | |
1.10 | 0.0433 | 0.950 | |
1.067 | 0.042 | 0.8938 | |
1.041 | 0.041 | 0.852 | |
1.02 | 0.040 | 0.8171 | |
1.000 | 0.0394 | 0.787 | |
0.98 | 0.0386 | 0.754 | |
0.95 | 0.0374 | 0.709 | |
0.9144 | 0.036 | 0.6567 | |
0.889 | 0.035 | 0.6207 | |
0.8839 | 0.0348 | 0.614 | |
0.850 | 0.0335 | 0.569 | |
0.813 | 0.032 | 0.519 | |
0.810 | 0.0319 | 0.5156 | |
0.79 | 0.0312 | 0.490 | 1/32 |
0.75 | 0.0295 | 0.442 | |
0.71112 | 0.028 | 0.3973 | |
0.660 | 0.026 | 0.3425 | |
0.635 | 0.025 | 0.3167 | |
0.610 | 0.024 | 0.2922 | |
0.579 | 0.0228 | 0.2634 | |
0.5715 | 0.0225 | 0.2565 | |
0.5588 | 0.022 | 0.2453 | |
0.52 | 0.0205 | 0.21237 | |
0.508 | 0.020 | 0.2027 | |
0.4572 | 0.018 | 0.16417 | |
0.45466 | 0.0179 | 0.162354 | |
0.450 | 0.0177 | 0.1590 | |
0.44168 | 0.01739 | 0.1532 | |
0.439 | 0.0173 | 0.152 | |
0.42906 | 0.01689 | 0.14458 | |
0.417 | 0.0164 | 0.1366 | |
0.406 | 0.016 | 0.1297 | |
0.40386 | 0.0159 | 0.1281 | |
0.3988 | 0.0157 | 0.1249 | |
0.396 | 0.0156 | 0.1232 | 1/64 |
0.39332 | 0.01549 | 0.12150 | |
0.38209 | 0.01504 | 0.11466 | |
0.378 | 0.0149 | 0.111 | |
0.3759 | 0.0148 | 0.1109 | |
0.37117 | 0.01461 | 0.10820 | |
0.36068 | 0.0142 | 0.10215 | |
0.3569 | 0.01405 | 0.1000 | |
0.35027 | 0.01379 | 0.09636 | |
0.345 | 0.0136 | 0.0935 | |
0.34026 | 0.01340 | 0.09093 | |
0.330 | 0.013 | 0.0856 | |
0.325 | 0.0128 | 0.0830 | |
0.3200 | 0.0126 | 0.0805 | |
0.3150 | 0.0124 | 0.07791 | |
0.31192 | 0.01228 | 0.07641 | |
0.3048 | 0.0120 | 0.073 | |
0.30301 | 0.01193 | 0.07211 | |
0.2998 | 0.0118 | 0.07055 | |
0.295 | 0.0116 | 0.06835 | |
0.2870 | 0.0113 | 0.064696 | |
0.27777 | 0.01094 | 0.060598 | |
0.2743 | 0.0108 | 0.05910 | |
0.26984 | 0.01062 | 0.05719 | |
0.2641 | 0.0104 | 0.05480 | |
0.26213 | 0.01032 | 0.053966 | |
0.254 | 0.0100 | 0.05067 | |
0.24736 | 0.00974 | 0.04805 | |
0.2413 | 0.0095 | 0.04573 | |
0.24030 | 0.00946 | 0.45352 | |
0.2337 | 0.0092 | 0.04289 | |
0.2260 | 0.0089 | 0.0401 | |
0.22028 | 0.00867 | 0.0381 | |
0.213 | 0.0084 | 0.03563 | |
0.20788 | 0.00818 | 0.03394 | |
0.2032 | 0.0080 | 0.03243 | |
0.200 | 0.0079 | 0.03162 | |
0.19617 | 0.00772 | 0.03022 | |
0.1930 | 0.0076 | 0.02927 | |
0.19056 | 0.00750 | 0.02852 | |
0.18512 | 0.00729 | 0.0269 | |
0.1803 | 0.0071 | 0.02554 | |
0.1778 | 0.0070 | 0.0248 | |
0.17469 | 0.00688 | 0.02397 | |
0.173 | 0.0068 | 0.0235 | |
0.16970 | 0.00668 | 0.0226 | |
0.1676 | 0.0066 | 0.02207 | |
0.16485 | 0.00649 | 0.02134 | |
0.1600 | 0.0063 | 0.020 | |
0.15557 | 0.00612 | 0.01900 | |
0.1524 | 0.0060 | 0.018241 | |
0.15112 | 0.00595 | 0.01794 | |
0.1473 | 0.0058 | 0.0170 | |
0.142 | 0.0056 | 0.01589 | |
0.13854 | 0.00545 | 0.01507 | |
0.13458 | 0.00530 | 0.01422 | |
0.132 | 0.0052 | 0.013685 | |
0.13074 | 0.00515 | 0.013425 | |
0.127 | 0.0050 | 0.0127 | |
0.1219 | 0.0048 | 0.011675 | |
0.11985 | 0.00472 | 0.01128 | |
0.1168 | 0.0046 | 0.01072 | |
0.1143 | 0.0045 | 0.01026 | |
0.112 | 0.0044 | 0.00985 | |
0.10673 | 0.00420 | 0.00895 | |
0.102 | 0.0040 | 0.00817 | |
0.09504 | 0.00374 | 0.00709 | |
0.091 | 0.0036 | 0.00650 | |
0.0889 | 0.0035 | 0.006207 | |
0.08464 | 0.00333 | 0.005626 | |
0.081 | 0.0032 | 0.005153 | |
0.07874 | 0.0031 | 0.004869 | |
0.071 | 0.0028 | 0.003959 | |
0.0636 | 0.0025 | 0.003167 | |
0.061 | 0.0024 | 0.002922 | |
0.0564 | 0.00222 | 0.0025 | |
0.051 | 0.0020 | 0.00204 | |
0.0447 | 0.00176 | 0.00157 | |
0.041 | 0.0016 | 0.00132 | |
0.039878 | 0.00157 | 0.001249 | |
0.03556 | 0.00140 | 0.000993 | |
0.0315 | 0.00124 | 0.000779 | |
0.030 | 0.0012 | 0.000707 | |
0.282 | 0.00111 | 0.000624 | |
0.025 | 0.0010 | 0.000491 | |
0.022 | 0.00088 | 0.000392 | |
0.0198 | 0.00078 | 0.000308 | |
0.0178 | 0.00070 | 0.000248 | |
0.0157 | 0.00062 | 0.000195 | |
0.014 | 0.00055 | 0.000153 | |
0.0125 | 0.00049 | 0.000122 |