INCHES | METRIC | No. & Letter Drills | INCHES | METRIC |
No. & Letter Drills |
INCHES | METRIC |
No. & Letter Drills |
|||||
Fractional | Decimal | mm | Fractional | Decimal | mm | Fractional | Decimal | mm | |||||
. | 0.0039 | 0.1000 | 0.0785 | 1.9939 | 47 | 0.1990 | 5.0546 | 8 | |||||
. | 0.0079 | 0.2000 | . | 0.0787 | 2.0000 | 0.2010 | 5.1054 | 7 | |||||
0.0118 | 0.3000 | 0.0810 | 2.0574 | 46 | 13/64 | 0.2031 | 5.1594 | ||||||
. | 0.0135 | 0.3429 | 80 | 0.0820 | 2.0828 | 45 | 0.2040 | 5.1816 | 6 | ||||
0.0145 | 0.3683 | 79 | . | 0.0827 | 2.1000 | 0.2055 | 5.2197 | 5 | |||||
1/64 | 0.0156 | 0.3969 | 0.0860 | 2.1844 | 44 | 0.2090 | 5.3086 | 4 | |||||
. | 0.0157 | 0.4000 | . | 0.0866 | 2.2000 | 0.2130 | 5.4102 | 3 | |||||
0.0160 | 0.4064 | 78 | 0.0890 | 2.2606 | 43 | . | 0.2165 | 5.5000 | |||||
0.0180 | 0.4572 | 77 | . | 0.0906 | 2.3000 | 7/32 | 0.2188 | 5.5563 | |||||
. | 0.0197 | 0.5000 | 0.0935 | 2.3749 | 42 | 0.2210 | 5.6134 | 2 | |||||
0.0200 | 0.5080 | 76 | 3/32 | 0.0938 | 2.3813 | 0.2280 | 5.7912 | 1 | |||||
0.0210 | 0.5334 | 75 | . | 0.0945 | 2.4000 | 0.2340 | 5.9436 | A | |||||
0.0225 | 0.5715 | 74 | 0.0960 | 2.4384 | 41 | 15/64 | 0.2344 | 5.9531 | |||||
. | 0.0236 | 0.6000 | 0.0980 | 2.4892 | 40 | . | 0.2362 | 6.0000 | |||||
0.0240 | 0.6096 | 73 | . | 0.0984 | 2.5000 | 0.2380 | 6.0452 | B | |||||
0.0250 | 0.6350 | 72 | 0.0995 | 2.5273 | 39 | 0.2420 | 6.1468 | C | |||||
0.0260 | 0.6604 | 71 | 0.1015 | 2.5781 | 38 | 0.2460 | 6.2484 | D | |||||
. | 0.0276 | 0.7000 | 0.1040 | 2.6416 | 37 | 1/4 | 0.2500 | 6.3500 | E | ||||
0.0280 | 0.7112 | 70 | 0.1065 | 2.7051 | 36 | . | 0.2559 | 6.5000 | |||||
0.0292 | 0.7417 | 69 | 7/64 | 0.1094 | 2.7781 | 0.2570 | 6.5278 | F | |||||
0.0310 | 0.7874 | 68 | 0.1100 | 2.7940 | 35 | 0.2610 | 6.6294 | G | |||||
1/32 | 0.0313 | 0.7938 | 0.1110 | 2.8194 | 34 | 17/64 | 0.2656 | 6.7469 | |||||
. | 0.0315 | 0.8000 | 0.1130 | 2.8702 | 33 | 0.2660 | 6.7564 | H | |||||
0.0320 | 0.8128 | 67 | 0.1160 | 2.9464 | 32 | 0.2720 | 6.9088 | I | |||||
0.0330 | 0.8382 | 66 | . | 0.1181 | 3.0000 | . | 0.2756 | 7.0000 | |||||
0.0350 | 0.8890 | 65 | 0.1200 | 3.0480 | 31 | 0.2770 | 7.0358 | J | |||||
. | 0.0354 | 0.9000 | 1/8 | 0.1250 | 3.1750 | 0.2810 | 7.1374 | K | |||||
0.0360 | 0.9144 | 64 | 0.1285 | 3.2639 | 30 | 9/32 | 0.2813 | 7.1438 | |||||
0.0370 | 0.9398 | 63 | 0.1360 | 3.4544 | 29 | 0.2900 | 7.3660 | L | |||||
0.0380 | 0.9652 | 62 | . | 0.1378 | 3.5000 | 0.2950 | 7.4930 | M | |||||
0.0390 | 0.9906 | 61 | 0.1405 | 3.5687 | 28 | . | 0.2953 | 7.5000 | |||||
0.0394 | 1.0000 | 9/64 | 0.1406 | 3.5719 | 19/64 | 0.2969 | 7.5406 | ||||||
0.0400 | 1.0160 | 60 | 0.1440 | 3.6576 | 27 | 0.3020 | 7.6708 | N | |||||
0.0410 | 1.0414 | 59 | 0.1470 | 3.7338 | 26 | 5/16 | 0.3125 | 7.9375 | |||||
0.0420 | 1.0668 | 58 | 0.1495 | 3.7973 | 25 | . | 0.3150 | 8.0000 | |||||
0.0430 | 1.0922 | 57 | 0.1520 | 3.8608 | 24 | 0.3160 | 8.0264 | O | |||||
. | 0.0433 | 1.1000 | 0.1540 | 3.9120 | 23 | 0.3230 | 8.2042 | P | |||||
0.0465 | 1.1811 | 56 | 5/32 | 0.1563 | 3.9688 | 21/64 | 0.3281 | 8.3344 | |||||
3/64 | 0.0469 | 1.1906 | 0.1570 | 3.9878 | 22 | 0.3320 | 8.4328 | Q | |||||
. | 0.0472 | 1.2000 | . | 0.1575 | 4.0000 | . | 0.3346 | 8.5000 | |||||
. | 0.0512 | 1.3000 | 0.1590 | 4.0386 | 21 | 0.3390 | 8.6106 | R | |||||
0.0520 | 1.3208 | 55 | 0.1610 | 4.0894 | 20 | 11/32 | 0.3438 | 8.7313 | |||||
0.0550 | 1.3970 | 54 | 0.1660 | 4.2164 | 19 | 0.3480 | 8.8392 | S | |||||
. | 0.0551 | 1.4000 | 0.1695 | 4.3053 | 18 | . | 0.3543 | 9.0000 | |||||
. | 0.0591 | 1.5000 | 11/64 | 0.1719 | 4.3656 | 0.3580 | 9.0932 | T | |||||
0.0595 | 1.5113 | 53 | 0.1730 | 4.3942 | 17 | 23/64 | 0.3594 | 9.1281 | |||||
1/16 | 0.0625 | 1.5875 | 0.1770 | 4.4958 | 16 | 0.3680 | 9.3472 | U | |||||
. | 0.0630 | 1.6000 | . | 0.1772 | 4.5000 | . | 0.3740 | 9.5000 | |||||
0.0635 | 1.6129 | 52 | 0.1800 | 4.5720 | 15 | 3/8 | 0.3750 | 9.5250 | |||||
. | 0.0669 | 1.7000 | 0.1820 | 4.6228 | 14 | 0.3770 | 9.5758 | V | |||||
0.0670 | 1.7018 | 51 | 0.1850 | 4.6990 | 13 | 0.3860 | 9.8044 | W | |||||
0.0700 | 1.7780 | 50 | 3/16 | 0.1875 | 4.7625 | 25/64 | 0.3906 | 9.9219 | |||||
. | 0.0709 | 1.8000 | 0.1890 | 4.8006 | 12 | . | 0.3937 | 10.0000 | |||||
0.0730 | 1.8542 | 49 | 0.1910 | 4.8514 | 11 | 0.3970 | 10.0838 | X | |||||
. | 0.0748 | 1.9000 | 0.1935 | 4.9149 | 10 | 0.4040 | 10.2616 | Y | |||||
0.0760 | 1.9304 | 48 | 0.1960 | 4.9784 | 9 | 13/32 | 0.4063 | 10.3188 | |||||
5/64 | 0.0781 | 1.9844 | . | 0.1969 | 5.0000 | 0.4130 | 10.4902 | Z |
This version coded by Chas Jones © Revision date: June 23, 2020, 21.15 Hrs. |