| Drill Size | Fraction | mm | Decimal Equiv. | | Drill Size | Fraction | mm | Decimal Equiv. | | Drill Size | Fraction | mm | Decimal Equiv. |
| | 0.10 | 0.0039 | | 31 | | 3.05 | 0.1200 | | S | | 8.84 | 0.3480 |
| | 0.20 | 0.0079 | | | 1/8 | 3.18 | 0.1250 | | | | 9.00 | 0.3543 |
| | 0.25 | 0.0098 | | 30 | | 3.26 | 0.1285 | | T | | 9.09 | 0.3580 |
| | 0.30 | 0.0118 | | 29 | | 3.45 | 0.1360 | | | 23/64 | 9.13 | 0.3594 |
| 80 | | 0.34 | 0.0135 | | 28 | | 3.57 | 0.1405 | | U | | 9.35 | 0.3680 |
| 79 | | 0.37 | 0.0145 | | | 9/64 | 3.57 | 0.1406 | | | 3/8 | 9.53 | 0.3750 |
| 1/64 | 0.40 | 0.0156 | | 27 | | 3.66 | 0.1440 | | V | | 9.56 | 0.3770 |
| 78 | | 0.41 | 0.0160 | | 26 | | 3.73 | 0.1470 | | W | | 9.80 | 0.3860 |
| 77 | | 0.46 | 0.0180 | | 25 | | 3.80 | 0.1495 | | | 25/64 | 9.92 | 0.3906 |
| | 0.50 | 0.0197 | | 24 | | 3.86 | 0.1520 | | | | 10.00 | 0.3937 |
| 76 | | 0.51 | 0.0200 | | 23 | | 3.91 | 0.1540 | | X | | 10.08 | 0.3970 |
| 75 | | 0.53 | 0.0210 | | | 5/32 | 3.97 | 0.1562 | | Y | | 10.26 | 0.4040 |
| 74 | | 0.57 | 0.0225 | | 22 | | 3.99 | 0.1570 | | | 13/32 | 10.32 | 0.4062 |
| | 0.60 | 0.0236 | | | | 4.00 | 0.1575 | | Z | | 10.49 | 0.4130 |
| 73 | | 0.61 | 0.0240 | | 21 | | 4.04 | 0.1590 | | | 27/64 | 10.72 | 0.4219 |
| 72 | | 0.64 | 0.0250 | | 20 | | 4.09 | 0.1610 | | | | 11.00 | 0.4331 |
| 71 | | 0.66 | 0.0260 | | 19 | | 4.22 | 0.1660 | | | 7/16 | 11.11 | 0.4375 |
| | 0.70 | 0.0276 | | 18 | | 4.31 | 0.1695 | | | 29/64 | 11.51 | 0.4531 |
| 70 | | 0.71 | 0.0280 | | | 11/64 | 4.37 | 0.1719 | | | 15/32 | 11.91 | 0.4688 |
| 69 | | 0.74 | 0.0292 | | 17 | | 4.39 | 0.1730 | | | | 12.00 | 0.4724 |
| | 0.75 | 0.0295 | | 16 | | 4.50 | 0.1770 | | | 31/64 | 12.30 | 0.4844 |
| 68 | | 0.79 | 0.0310 | | 15 | | 4.57 | 0.1800 | | | 1/2 | 12.70 | 0.5000 |
| 1/32 | 0.79 | 0.0313 | | 14 | | 4.62 | 0.1820 | | | | 13.00 | 0.5118 |
| | 0.80 | 0.0315 | | 13 | | 4.70 | 0.1850 | | | 33/64 | 13.10 | 0.5156 |
| 67 | | 0.81 | 0.0320 | | | 3/16 | 4.76 | 0.1875 | | | 17/32 | 13.49 | 0.5312 |
| 66 | | 0.84 | 0.0330 | | 12 | | 4.80 | 0.1890 | | | 35/64 | 13.89 | 0.5469 |
| 65 | | 0.89 | 0.0350 | | 11 | | 4.85 | 0.1910 | | | | 14.00 | 0.5512 |
| | 0.90 | 0.0354 | | 10 | | 4.91 | 0.1935 | | | 9/16 | 14.29 | 0.5625 |
| 64 | | 0.91 | 0.0360 | | 9 | | 4.98 | 0.1960 | | | 37/64 | 14.68 | 0.5781 |
| 63 | | 0.94 | 0.0370 | | | | 5.00 | 0.1968 | | | | 15.00 | 0.5906 |
| 62 | | 0.97 | 0.0380 | | 8 | | 5.05 | 0.1990 | | | 19/32 | 15.08 | 0.5938 |
| 61 | | 0.99 | 0.0390 | | 7 | | 5.11 | 0.2010 | | | 39/64 | 15.48 | 0.6094 |
| | 1.00 | 0.0394 | | | 13/64 | 5.16 | 0.2031 | | | 5/8 | 15.88 | 0.6250 |
| 60 | | 1.02 | 0.0400 | | 6 | | 5.18 | 0.2040 | | | | 16.00 | 0.6299 |
| 59 | | 1.04 | 0.0410 | | 5 | | 5.22 | 0.2055 | | | 41/64 | 16.27 | 0.6406 |
| 58 | | 1.07 | 0.0420 | | 4 | | 5.31 | 0.2090 | | | 21/32 | 16.67 | 0.6562 |
| 57 | | 1.09 | 0.0430 | | 3 | | 5.41 | 0.2130 | | | - | 17.00 | 0.6693 |
| 56 | | 1.18 | 0.0465 | | | 7/32 | 5.56 | 0.2188 | | | 43/64 | 17.07 | 0.6719 |
| 3/64 | 1.19 | 0.0469 | | 2 | | 5.61 | 0.2210 | | | 11/16 | 17.46 | 0.6875 |
| 55 | | 1.32 | 0.0520 | | 1 | | 5.79 | 0.2280 | | | 45/64 | 17.86 | 0.7031 |
| 54 | | 1.40 | 0.0550 | | A | | 5.94 | 0.2340 | | | - | 18.00 | 0.7087 |
| 53 | | 1.51 | 0.0595 | | | 15/64 | 5.95 | 0.2344 | | | 23/32 | 18.26 | 0.7188 |
| 1/16 | 1.59 | 0.0625 | | | | 6.00 | 0.2362 | | | 47/64 | 18.65 | 0.7344 |
| 52 | | 1.61 | 0.0635 | | B | | 6.05 | 0.2380 | | | - | 19.00 | 0.7480 |
| 51 | | 1.70 | 0.0670 | | C | | 6.15 | 0.2420 | | | 3/4 | 19.05 | 0.7500 |
| 50 | | 1.78 | 0.0700 | | D | | 6.25 | 0.2460 | | | 49/64 | 19.45 | 0.7656 |
| 49 | | 1.85 | 0.0730 | | | 1/4 | 6.35 | 0.2500 | | | 25/32 | 19.84 | 0.7812 |
| 48 | | 1.93 | 0.0760 | | E | | 6.35 | 0.2500 | | | - | 20.00 | 0.7874 |
| 5/64 | 1.98 | 0.0781 | | F | | 6.53 | 0.2570 | | | 51/64 | 20.24 | 0.7969 |
| 47 | | 1.99 | 0.0785 | | G | | 6.63 | 0.2610 | | | 13/16 | 20.64 | 0.8125 |
| | 2.00 | 0.0787 | | | 17/64 | 6.75 | 0.2656 | | | - | 21.00 | 0.8268 |
| 46 | | 2.06 | 0.0810 | | H | | 6.76 | 0.2660 | | | 53/64 | 21.03 | 0.8281 |
| 45 | | 2.08 | 0.0820 | | I | | 6.91 | 0.2720 | | | 27/32 | 21.43 | 0.8438 |
| 44 | | 2.18 | 0.0860 | | | | 7.00 | 0.2756 | | | 55/64 | 21.84 | 0.8594 |
| 43 | | 2.26 | 0.0890 | | J | | 7.04 | 2.7700 | | | - | 22.00 | 0.8661 |
| 42 | | 2.37 | 0.0935 | | K | | 7.14 | 2.8100 | | | 7/8 | 22.23 | 0.8750 |
| 3/32 | 2.38 | 0.0938 | | | 9/32 | 7.14 | 2.8120 | | | 57/64 | 22.62 | 0.8906 |
| 41 | | 2.44 | 0.0960 | | L | | 7.37 | 2.9000 | | | - | 23.00 | 0.9055 |
| 40 | | 2.50 | 0.0980 | | M | | 7.49 | 2.9500 | | | 29/32 | 23.02 | 0.9062 |
| 39 | | 2.53 | 0.0995 | | | 19/64 | 7.54 | 2.9690 | | | 59/64 | 23.42 | 0.9219 |
| 38 | | 2.58 | 0.1015 | | N | | 7.67 | 0.3020 | | | 15/16 | 23.81 | 0.9375 |
| 37 | | 2.64 | 0.1040 | | | 5/16 | 7.94 | 0.3125 | | | - | 24.00 | 0.9449 |
| 36 | | 2.71 | 0.1065 | | | | 8.00 | 0.3150 | | | 61/64 | 24.21 | 0.9531 |
| 7/64 | 2.78 | 0.1094 | | O | | 8.03 | 0.3160 | | | 31/32 | 24.61 | 0.9688 |
| 35 | | 2.79 | 0.1100 | | P | | 8.20 | 0.3230 | | | - | 25.00 | 0.9842 |
| 34 | | 2.82 | 0.1110 | | | 21/64 | 8.33 | 0.3281 | | | 63/64 | 25.00 | 0.9844 |
| 33 | | 2.87 | 0.1130 | | Q | | 8.43 | 0.3320 | | | 1 | 25.40 | 1.0000 |
| 32 | | 2.95 | 0.1160 | | R | | 8.61 | 0.3390 |
| | 3.00 | 0.1181 | | | 11/32 | 8.73 | 0.3438 |