| Drill | Decimal |
|---|---|
| 80 | .0135″ |
| 79 | .0145″ |
| 1/64 | .0156″ |
| 78 | .0160″ |
| 77 | .0180″ |
| 76 | .0200″ |
| 75 | .0210″ |
| 74 | .0225″ |
| 73 | .0240″ |
| 72 | .0250″ |
| 71 | .0260″ |
| 70 | .0280″ |
| 69 | .0292″ |
| 68 | .0310″ |
| 1/32 | .0313″ |
| 67 | .0320″ |
| 66 | .0330″ |
| 65 | .0350″ |
| 64 | .0360″ |
| 63 | .0370″ |
| 62 | .0380″ |
| 61 | .0390″ |
| 60 | .0400″ |
| 59 | .0410″ |
| 58 | .0420″ |
| 57 | .0430″ |
| 56 | .0465″ |
| 3/64 | .0469″ |
| 55 | .0520″ |
| 54 | .0550″ |
| 53 | .0595″ |
| 1/16 | .0625″ |
| 52 | .0635″ |
| 51 | .0670″ |
| 50 | .0700″ |
| 49 | .0730″ |
| 48 | .0760″ |
| 5/64 | .0781″ |
| 47 | .0785″ |
| 46 | .0810″ |
| 45 | .0820″ |
| 44 | .0860″ |
| 43 | .0890″ |
| 42 | .0935″ |
| 3/32 | .0938″ |
| 41 | .0960″ |
| 40 | .0980″ |
| 39 | .0995″ |
| 38 | .1015″ |
| 37 | .1040″ |
| 36 | .1065″ |
| 7/64 | .1094″ |
| 35 | .1100″ |
| 34 | .1110″ |
| 33 | .1130″ |
| 32 | .1160″ |
| 31 | .1200″ |
| 1/8 | .1250″ |
| 30 | .1285″ |
| 29 | .1360″ |
| 28 | .1405″ |
| 9/64 | .1406″ |
| 27 | .1440″ |
| 26 | .1470″ |
| 25 | .1495″ |
| 24 | .1520″ |
| 23 | .1540″ |
| 5/32 | .1562″ |
| 22 | .1570″ |
| 21 | .1590″ |
| 20 | .1610″ |
| 19 | .1660″ |
| 18 | .1695 |
| 11/64 | .1719″ |
| 17 | .1730″ |
| 16 | .1770″ |
| 15 | .1800″ |
| 14 | .1820″ |
| 13 | .1850″ |
| 3/16 | .1875″ |
| 12 | .1890″ |
| 11 | .1910″ |
| 10 | .1935″ |
| 9 | .1960″ |
| 8 | .1990″ |
| 7 | .2010″ |
| 13/64 | .2031″ |
| 6 | .2040″ |
| 5 | .2055″ |
| 4 | .2090″ |
| 3 | .2130″ |
| 7/32 | .2188″ |
| 2 | .2210″ |
| 1 | .2280″ |
| A | .2340″ |
| 15/64 | .2344″ |
| B | .2380″ |
| C | .2420″ |
| D | .2460″ |
| E | .2500″ |
| 1/4 | .2500″ |
| F | .2570″ |
| G | .2610″ |
| 17/64 | .2656″ |
| H | .2660″ |
| I | .2720″ |
| J | .2770″ |
| K | .2810″ |
| 9/32 | .2812″ |
| L | .2900″ |
| M | .2950″ |
| 19/64 | .2969″ |
| N | .3020″ |
| 5/16 | .3125″ |
| O | .3160″ |
| P | .3230″ |
| 21/64 | .3281″ |
| Q | .3320″ |
| R | .3390″ |
| 11/32 | .3438″ |
| S | .3480″ |
| T | .3580″ |
| 23/64 | .3594″ |
| U | .3680″ |
| 3/8 | .3750″ |
| V | .3770″ |
| W | .3860″ |
| 25/64 | .3906″ |
| X | .3970″ |
| Y | .4040″ |
| 13/32 | .4062″ |
| Z | .4130″ |
| 27/64 | .4219″ |
| 7/16 | .4375″ |
| 29/64 | .4531″ |
| 15/32 | .4688″ |
| 31/64 | .4844″ |
| 1/2 | .5000″ |
| 33/64 | .5156″ |
| 17/32 | .5313″ |
| 35/64 | .5469″ |
| 9/16 | .5625″ |
| 37/64 | .5781″ |
| 19/32 | .5938″ |
| 39/64 | .6094″ |
| 5/8 | .6250″ |
| 41/64 | .6406″ |
| 21/32 | .6562″ |
| 43/64 | .6719″ |
| 11/16 | .6875″ |
| 45/64 | .7031″ |
| 23/32 | .7188″ |
| 47/64 | .7344″ |
| 3/4 | .7500″ |
| 49/64 | .7656″ |
| 25/32 | .7812″ |
| 51/64 | .7969″ |
| 13/16 | .8125″ |
| 53/64 | .8281″ |
| 27/32 | .8438″ |
| 55/64 | .8594″ |
| 7/8 | .8750″ |
| 57/64 | .8906″ |
| 29/32 | .9062″ |
| 59/64 | .9219″ |
| 15/16 | .9375″ |
| 61/64 | .9531″ |
| 31/32 | .9688″ |
| 63/64 | .9844″ |
| 1 | 1.000″ |