| Drill | Decimal | Metric |
|---|---|---|
| 80 | 0.0135 | 0.34 |
| 79 | 0.0145 | 0.37 |
| 1/64 | 0.0156 | 0.40 |
| 78 | 0.016 | 0.41 |
| 77 | 0.018 | 0.46 |
| 76 | 0.02 | 0.51 |
| 75 | 0.021 | 0.53 |
| 74 | 0.0225 | 0.57 |
| 73 | 0.024 | 0.61 |
| 72 | 0.025 | 0.64 |
| 71 | 0.026 | 0.66 |
| 70 | 0.028 | 0.71 |
| 69 | 0.0292 | 0.74 |
| 68 | 0.031 | 0.79 |
| 1/32 | 0.0312 | 0.79 |
| 67 | 0.032 | 0.81 |
| 66 | 0.033 | 0.84 |
| 65 | 0.035 | 0.89 |
| 64 | 0.036 | 0.91 |
| 63 | 0.037 | 0.94 |
| 62 | 0.038 | 0.97 |
| 61 | 0.039 | 0.99 |
| 60 | 0.04 | 1.02 |
| 59 | 0.041 | 1.04 |
| 58 | 0.042 | 1.07 |
| 57 | 0.043 | 1.09 |
| 56 | 0.0465 | 1.18 |
| 3/64 | 0.0469 | 1.19 |
| 55 | 0.052 | 1.32 |
| 54 | 0.055 | 1.40 |
| 53 | 0.0595 | 1.51 |
| 1/16 | 0.0625 | 1.59 |
| 52 | 0.0635 | 1.61 |
| 51 | 0.067 | 1.70 |
| 50 | 0.07 | 1.78 |
| 49 | 0.073 | 1.85 |
| 48 | 0.076 | 1.93 |
| 5/64 | 0.0781 | 1.98 |
| 47 | 0.0785 | 1.99 |
| 46 | 0.081 | 2.06 |
| 45 | 0.082 | 2.08 |
| 44 | 0.086 | 2.18 |
| 43 | 0.089 | 2.26 |
| 42 | 0.0935 | 2.37 |
| 3/32 | 0.0938 | 2.38 |
| 41 | 0.096 | 2.44 |
| 40 | 0.098 | 2.49 |
| 39 | 0.0995 | 2.53 |
| 38 | 0.1015 | 2.58 |
| 37 | 0.104 | 2.64 |
| 36 | 0.1065 | 2.71 |
| 7/64 | 0.1094 | 2.78 |
| 35 | 0.11 | 2.79 |
| 34 | 0.111 | 2.82 |
| 33 | 0.113 | 2.87 |
| 32 | 0.116 | 2.95 |
| 31 | 0.12 | 3.05 |
| 1/8 | 0.125 | 3.18 |
| 30 | 0.1285 | 3.26 |
| 29 | 0.136 | 3.45 |
| 28 | 0.1405 | 3.57 |
| 9/64 | 0.1406 | 3.57 |
| 27 | 0.144 | 3.66 |
| 26 | 0.147 | 3.73 |
| 25 | 0.1495 | 3.80 |
| 24 | 0.152 | 3.86 |
| 23 | 0.154 | 3.91 |
| 5/32 | 0.1562 | 3.97 |
| 22 | 0.157 | 3.99 |
| 21 | 0.159 | 4.04 |
| 20 | 0.161 | 4.09 |
| 19 | 0.166 | 4.22 |
| 18 | 0.1695 | 4.31 |
| 11/64 | 0.1719 | 4.37 |
| 17 | 0.173 | 4.39 |
| 16 | 0.177 | 4.50 |
| 15 | 0.18 | 4.57 |
| 14 | 0.182 | 4.62 |
| 13 | 0.185 | 4.70 |
| 3/16 | 0.1875 | 4.76 |
| 12 | 0.189 | 4.80 |
| 11 | 0.191 | 4.85 |
| 10 | 0.1935 | 4.91 |
| 9 | 0.196 | 4.98 |
| 8 | 0.199 | 5.05 |
| 7 | 0.201 | 5.11 |
| 13/64 | 0.2031 | 5.16 |
| 6 | 0.204 | 5.18 |
| 5 | 0.2055 | 5.22 |
| 4 | 0.209 | 5.31 |
| 3 | 0.213 | 5.41 |
| 7/32 | 0.2188 | 5.56 |
| 2 | 0.221 | 5.61 |
| 1 | 0.228 | 5.79 |
| A | 0.234 | 5.94 |
| 15/64 | 0.2344 | 5.95 |
| B | 0.238 | 6.05 |
| C | 0.242 | 6.15 |
| D | 0.246 | 6.25 |
| E | 0.25 | 6.35 |
| 1/4 | 0.25 | 6.35 |
| F | 0.257 | 6.53 |
| G | 0.261 | 6.63 |
| 17/64 | 0.2656 | 6.75 |
| H | 0.266 | 6.76 |
| I | 0.272 | 6.91 |
| J | 0.277 | 7.04 |
| K | 0.281 | 7.14 |
| 9/32 | 0.2812 | 7.14 |
| L | 0.29 | 7.37 |
| M | 0.295 | 7.49 |
| 19/64 | 0.2969 | 7.54 |
| N | 0.302 | 7.67 |
| 5/16 | 0.3125 | 7.94 |
| O | 0.316 | 8.03 |
| P | 0.323 | 8.20 |
| 21/64 | 0.3281 | 8.33 |
| Q | 0.332 | 8.43 |
| R | 0.339 | 8.61 |
| 11/32 | 0.3438 | 8.73 |
| S | 0.348 | 8.84 |
| T | 0.358 | 9.09 |
| 23/64 | 0.3594 | 9.13 |
| U | 0.368 | 9.35 |
| 3/8 | 0.375 | 9.53 |
| V | 0.377 | 9.58 |
| W | 0.386 | 9.80 |
| 25/64 | 0.3906 | 9.92 |
| X | 0.397 | 10.08 |
| Y | 0.404 | 10.26 |
| 13/32 | 0.4062 | 10.32 |
| Z | 0.413 | 10.49 |
| 27/64 | 0.4219 | 10.72 |
| 7/16 | 0.4375 | 11.11 |
| 29/64 | 0.4531 | 11.51 |
| 15/32 | 0.4688 | 11.91 |
| 31/64 | 0.4844 | 12.30 |
| 1/2 | 0.5 | 12.70 |
| 33/64 | 0.5156 | 13.10 |
| 17/32 | 0.5312 | 13.49 |
| 35/64 | 0.5469 | 13.89 |
| 9/16 | 0.5625 | 14.29 |
| 37/64 | 0.5781 | 14.68 |
| 19/32 | 0.5938 | 15.08 |
| 39/64 | 0.6094 | 15.48 |
| 5/8 | 0.625 | 15.88 |
| 41/64 | 0.6406 | 16.27 |
| 21/32 | 0.6562 | 16.67 |
| 43/64 | 0.6719 | 17.07 |
| 11/16 | 0.6875 | 17.46 |
| 45/64 | 0.7031 | 17.86 |
| 23/32 | 0.7188 | 18.26 |
| 47/64 | 0.7344 | 18.65 |
| 3/4 | 0.75 | 19.05 |
| 49/64 | 0.7656 | 19.45 |
| 25/32 | 0.7812 | 19.84 |
| 51/64 | 0.7969 | 20.24 |
| 13/16 | 0.8125 | 20.64 |
| 53/64 | 0.8281 | 21.03 |
| 27/32 | 0.8438 | 21.43 |
| 55/64 | 0.8594 | 21.83 |
| 7/8 | 0.875 | 22.23 |
| 57/64 | 0.8906 | 22.62 |
| 29/32 | 0.9062 | 23.02 |
| 59/64 | 0.9219 | 23.42 |
| 15/16 | 0.9375 | 23.81 |
| 61/64 | 0.9531 | 24.21 |
| 31/32 | 0.9688 | 24.61 |
| 63/64 | 0.9844 | 25.00 |
| 1 | 1 | 25.40 |