Number and Letter Drill Sizes
With drill point length
|number|decimal| point |number|decimal| point |number|decimal|point |
| size | equiv |length | size | equiv |length | size | equiv |length|
---------------------------------------------------------------------
| 80 |.0135 | | 45 |.082 |.025 |10 |.1935 |.058 |
| 79 |.0145 | | 44 |.086 |.026 | 9 |.196 |.059 |
| 78 |.016 | | 43 |.089 |.027 | 8 |.199 |.060 |
| 77 |.018 | | 42 |.0935 |.028 | 7 |.201 |.060 |
| 76 |.020 | | 41 |.096 |.029 | 6 |.204 |.061 |
| 75 |.021 | | 40 |.098 |.029 | 5 |.2055 |.062 |
| 74 |.0225 | | 39 |.0995 |.030 | 4 |.209 |.063 |
| 73 |.024 | | 38 |.1015 |.030 | 3 |.213 |.064 |
| 72 |.025 | | 37 |.104 |.031 | 2 |.221 |.067 |
| 71 |.026 | | 36 |.1065 |.032 | 1 |.228 |.068 |
| 70 |.028 | | 35 |.110 |.033 | A |.234 | |
| 69 |.0292 | | 34 |.111 |.033 | B |.238 | |
| 68 |.031 | | 33 |.113 |.034 | C |.242 | |
| 67 |.032 | | 32 |.116 |.035 | D |.246 | |
| 66 |.033 | | 31 |.120 |.036 | E |.250 | |
| 65 |.035 | | 30 |.1285 |.039 | F |.257 | |
| 64 |.036 | | 29 |.136 |.041 | G |.261 | |
| 63 |.037 | | 28 |.1405 |.042 | H |.266 | |
| 62 |.038 | | 27 |.144 |.043 | I |.272 | |
| 61 |.039 | | 26 |.147 |.044 | J |.277 | |
| 60 |.040 |.012 | 25 |.1495 |.045 | K |.281 | |
| 59 |.041 |.012 | 24 |.152 |.046 | L |.290 | |
| 58 |.042 |.013 | 23 |.154 |.046 | M |.295 | |
| 57 |.043 |.013 | 22 |.157 |.047 | N |.302 | |
| 56 |.0465 |.014 | 21 |.159 |.048 | O |.316 | |
| 55 |.052 |.016 | 20 |.161 |.048 | P |.323 | |
| 54 |.055 |.017 | 19 |.166 |.050 | Q |.332 | |
| 53 |.0595 |.018 | 18 |.1695 |.051 | R |.339 | |
| 52 |.0635 |.019 | 17 |.173 |.052 | S |.348 | |
| 51 |.067 |.020 | 16 |.177 |.053 | T |.358 | |
| 50 |.070 |.021 | 15 |.180 |.054 | U |.368 | |
| 49 |.073 |.022 | 14 |.182 |.055 | V |.377 | |
| 48 |.076 |.023 | 13 |.185 |.056 | W |.386 | |
| 47 |.0785 |.024 | 12 |.189 |.057 | X |.397 | |
| 46 |.081 |.024 | 11 |.191 |.057 | Y |.404 | |
| | | | | | | Z |.413 | |