| " | " | # | mm | 
|---|
|  | 0.0098 |  | 0.25 | 
|  | 0.0118 |  | 0.30 | 
|  | 0.0135 | 80 |  | 
|  | 0.0138 |  | 0.35 | 
|  | 0.0145 | 79 |  | 
| 1/64 | 0.0156 |  |  | 
|  | 0.0157 |  | 0.40 | 
|  | 0.0160 | 78 |  | 
|  | 0.0177 |  | 0.45 | 
|  | 0.0180 | 77 |  | 
|  | 0.0197 |  | 0.50 | 
|  | 0.0200 | 76 |  | 
|  | 0.0210 | 75 |  | 
|  | 0.0217 |  | 0.55 | 
|  | 0.0225 | 74 |  | 
|  | 0.0236 |  | 0.60 | 
|  | 0.0240 | 73 |  | 
|  | 0.0250 | 72 |  | 
|  | 0.0256 |  | 0.65 | 
|  | 0.0260 | 71 |  | 
|  | 0.0276 |  | 0.70 | 
|  | 0.0280 | 70 |  | 
|  | 0.0292 | 69 |  | 
|  | 0.0295 |  | 0.75 | 
|  | 0.0310 | 68 |  | 
| 1/32 | 0.0313 |  |  | 
|  | 0.0315 |  | 0.80 | 
|  | 0.0320 | 67 |  | 
|  | 0.0330 | 66 |  | 
|  | 0.0335 |  | 0.85 | 
|  | 0.0350 | 65 |  | 
|  | 0.0354 |  | 0.90 | 
|  | 0.0360 | 64 |  | 
|  | 0.0370 | 63 |  | 
|  | 0.0374 |  | 0.95 | 
|  | 0.0380 | 62 |  | 
|  | 0.0390 | 61 |  | 
|  | 0.0394 |  | 1.00 | 
|  | 0.0400 | 60 |  | 
|  | 0.0410 | 59 |  | 
|  | 0.0420 | 58 |  | 
|  | 0.0430 | 57 |  | 
|  | 0.0433 |  | 1.10 | 
|  | 0.0465 | 56 |  | 
| 3/64 | 0.0469 |  |  | 
|  | 0.0472 |  | 1.20 | 
|  | 0.0512 |  | 1.30 | 
|  | 0.0520 | 55 |  | 
|  | 0.0550 | 54 |  | 
|  | 0.0551 |  | 1.40 | 
|  | 0.0591 |  | 1.50 | 
|  | 0.0595 | 53 |  | 
| 1/16 | 0.0625 |  |  | 
|  | 0.0630 |  | 1.60 | 
|  | 0.0635 | 52 |  | 
|  | 0.0669 |  | 1.70 | 
|  | 0.0670 | 51 |  | 
|  | 0.0700 | 50 |  | 
|  | 0.0709 |  | 1.80 | 
|  | 0.0730 | 49 |  | 
|  | 0.0748 |  | 1.90 | 
|  | 0.0760 | 48 |  | 
| 5/64 | 0.0781 |  |  | 
|  | 0.0785 | 47 |  | 
|  | 0.0787 |  | 2.00 | 
|  | 0.0810 | 46 |  | 
|  | 0.0820 | 45 |  | 
|  | 0.0827 |  | 2.10 | 
|  | 0.0860 | 44 |  | 
|  | 0.0866 |  | 2.20 | 
|  | 0.0890 | 43 |  | 
|  | 0.0906 |  | 2.30 | 
|  | 0.0935 | 42 |  | 
| 3/32 | 0.0938 |  |  | 
|  | 0.0945 |  | 2.40 | 
|  | 0.0960 | 41 |  | 
|  | 0.0980 | 40 |  | 
|  | 0.0984 |  | 2.50 | 
|  | 0.0995 | 39 |  | 
|  | 0.1015 | 38 |  | 
|  | 0.1024 |  | 2.60 | 
|  | 0.1040 | 37 |  | 
|  | 0.1063 |  | 2.70 | 
|  | 0.1065 | 36 |  | 
| 7/64 | 0.1094 |  |  | 
|  | 0.1100 | 35 |  | 
|  | 0.1102 |  | 2.80 | 
|  | 0.1110 | 34 |  | 
|  | 0.1130 | 33 |  | 
|  | 0.1142 |  | 2.90 | 
|  | 0.1160 | 32 |  | 
|  | 0.1181 |  | 3.00 | 
|  | 0.1200 | 31 |  | 
| 1/8 | 0.1250 |  |  | 
|  | 0.1285 | 30 |  | 
|  | 0.1360 | 29 |  | 
|  | 0.1378 |  | 3.50 | 
|  | 0.1405 | 28 |  | 
| 9/64 | 0.1406 |  |  | 
|  | 0.1440 | 27 |  | 
|  | 0.1470 | 26 |  | 
|  | 0.1495 | 25 |  | 
|  | 0.1520 | 24 |  | 
|  | 0.1540 | 23 |  | 
| 5/32 | 0.1563 |  |  | 
|  | 0.1570 | 22 |  | 
|  | 0.1575 |  | 4.00 | 
|  | 0.1590 | 21 |  | 
|  | 0.1610 | 20 |  | 
|  | 0.1660 | 19 |  | 
|  | 0.1695 | 18 |  | 
| 11/64 | 0.1719 |  |  | 
|  | 0.1730 | 17 |  | 
|  | 0.1770 | 16 |  | 
|  | 0.1772 |  | 4.50 | 
|  | 0.1800 | 15 |  | 
|  | 0.1820 | 14 |  | 
|  | 0.1850 | 13 |  | 
| 3/16 | 0.1875 |  |  | 
|  | 0.1890 | 12 |  | 
|  | 0.1910 | 11 |  | 
|  | 0.1935 | 10 |  | 
|  | 0.1960 | 9 |  | 
|  | 0.1968 |  | 5.00 | 
|  | 0.1990 | 8 |  | 
|  | 0.2010 | 7 |  | 
| 13/64 | 0.2031 |  |  | 
|  | 0.2040 | 6 |  | 
|  | 0.2055 | 5 |  | 
|  | 0.2090 | 4 |  | 
|  | 0.2130 | 3 |  | 
|  | 0.2165 |  | 5.50 | 
| 7/32 | 0.2188 |  |  | 
|  | 0.2210 | 2 |  | 
|  | 0.2280 | 1 |  | 
|  | 0.2340 | A |  | 
| 15/64 | 0.2344 |  |  | 
|  | 0.2362 |  | 6.00 | 
|  | 0.2380 | B |  | 
|  | 0.2420 | C |  | 
|  | 0.2460 | D |  | 
| 1/4 | 0.2500 | E | 6.35 | 
|  | 0.2559 |  | 6.50 | 
|  | 0.2570 | F |  | 
|  | 0.2610 | G |  | 
| 17/64 | 0.2656 |  |  | 
|  | 0.2660 | H |  | 
|  | 0.2720 | I |  | 
|  | 0.2756 |  | 7.00 | 
|  | 0.2770 | J |  | 
|  | 0.2810 | K |  | 
| 9/32 | 0.2813 |  |  | 
|  | 0.2900 | L |  | 
|  | 0.2950 | M |  | 
|  | 0.2953 |  | 7.50 | 
| 19/64 | 0.2969 |  |  | 
|  | 0.3020 | N |  | 
| 5/16 | 0.3125 |  |  | 
|  | 0.3150 |  | 8.00 | 
|  | 0.3160 | O |  | 
|  | 0.3230 | P |  | 
| 21/64 | 0.3281 |  |  | 
|  | 0.3320 | Q |  | 
| 11/32 | 0.3438 |  |  | 
|  | 0.3346 |  | 8.50 | 
|  | 0.3390 | R |  | 
| 11/32 | 0.3438 |  |  | 
|  | 0.3480 | S |  | 
|  | 0.3543 |  | 9.00 | 
|  | 0.3580 | T |  | 
| 23/64 | 0.3594 |  |  | 
|  | 0.3680 | U |  | 
|  | 0.3740 |  | 9.50 | 
| 3/8 | 0.3750 |  |  | 
|  | 0.3770 | V |  | 
|  | 0.3860 | W |  | 
| 25/64 | 0.3906 |  |  | 
|  | 0.3937 |  | 10.00 | 
|  | 0.3970 | X |  | 
|  | 0.4040 | Y |  | 
| 13/32 | 0.4063 |  |  | 
|  | 0.4130 | Z |  | 
|  | 0.4134 |  | 10.50 | 
| 27/64 | 0.4219 |  |  | 
|  | 0.4331 |  | 11.00 | 
| 7/16 | 0.4375 |  |  | 
|  | 0.4528 |  | 11.50 | 
| 29/64 | 0.4531 |  |  | 
| 15/32 | 0.4688 |  |  | 
|  | 0.4724 |  | 12.00 | 
| 31/64 | 0.4844 |  |  | 
|  | 0.4921 |  | 12.50 | 
| 1/2 | 0.500 |  | 12.70 | 
|  | 0.5118 |  | 13.00 | 
| 33/64 | 0.5156 |  |  | 
| 17/32 | 0.5313 |  |  | 
|  | 0.5315 |  | 13.50 | 
| 35/64 | 0.5469 |  |  | 
|  | 0.5512 |  | 14.00 | 
| 9/16 | 0.5625 |  |  | 
|  | 0.5709 |  | 14.50 | 
| 37/64 | 0.5781 |  |  | 
|  | 0.5905 |  | 15.00 | 
| 19/32 | 0.5938 |  |  | 
| 39/64 | 0.6094 |  |  | 
|  | 0.6102 |  | 15.50 | 
| 5/8 | 0.6250 |  |  | 
|  | 0.6299 |  | 16.00 | 
| 41/64 | 0.6406 |  |  | 
|  | 0.6496 |  | 16.50 | 
| 21/32 | 0.6563 |  |  | 
|  | 0.6693 |  | 17.00 | 
| 43/64 | 0.6719 |  |  | 
| 11/16 | 0.6875 |  |  | 
|  | 0.6890 |  | 17.50 | 
| 45/64 | 0.7031 |  |  | 
|  | 0.7087 |  | 18.00 | 
| 23/32 | 0.7188 |  |  | 
|  | 0.7283 |  | 18.50 | 
| 47/64 | 0.7344 |  |  | 
|  | 0.7480 |  | 19.00 | 
| 3/4 | 0.7500 |  | 19.05 | 
| 49/64 | 0.7656 |  |  | 
|  | 0.7677 |  | 19.50 | 
| 25/32 | 0.7813 |  |  | 
|  | 0.7874 |  | 20.00 | 
| 51/64 | 0.7969 |  |  | 
|  | 0.8071 |  | 20.50 | 
| 13/16 | 0.8125 |  |  | 
|  | 0.8268 |  | 21.00 | 
| 53/64 | 0.8281 |  |  | 
| 27/32 | 0.8438 |  |  | 
|  | 0.8465 |  | 21.50 | 
| 55/64 | 0.8594 |  |  | 
|  | 0.8661 |  | 22.00 | 
| 7/8 | 0.8750 |  |  | 
|  | 0.8858 |  | 22.50 | 
| 57/64 | 0.8906 |  |  | 
|  | 0.9055 |  | 23.00 | 
| 29/32 | 0.9063 |  |  | 
| 59/64 | 0.9219 |  |  | 
|  | 0.9252 |  | 23.50 | 
| 15/16 | 0.9375 |  |  | 
|  | 0.9449 |  | 24.00 | 
| 61/64 | 0.9531 |  |  | 
|  | 0.9646 |  | 24.50 | 
| 31/32 | 0.9688 |  |  | 
|  | 0.9842 |  | 25.00 | 
| 63/64 | 0.9844 |  |  | 
| 1 | 1.0000 |  | 25.40 |