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Copper Drill Sizes

 
DIAM.
DIAM.
DIAM.
DIAM.
DIAM.
DRILL
INCHES
DRILL
INCHES
DRILL
INCHES
DRILL
INCHES
DRILL
INCHES
80 .0135 2.1m/m .0827 16 .1770 9/32 .2812 12.m/m .4724
79 .0145 44 .0860 4.5m/m .1772 7.2m/m .2835 31/64 .4844
1/64 .0156 2.2m/m .0866 15 .1800 7.3m/m .2874 12.5m/m .4921
78 .0160 2.25m/m .0886 4.6m/m .1811 L .2900 1/2 .5000
77 .0180 43 .0890 14 .1820 7.4m/m .2913 13.m/m .5118
.5m/m .0197 2.3m/m .0906 13 .1850 M .2950 33/64 .5156
76 .0200 42 .0935 4.7m/m .1850 7.5m/m .2953 17/32 .5312
75 .0210 3/32 .0938 3/16 .1875 19/64 .2969 13.5m/m .5315
74 .0225 2.4m/m .0945 4.8m/m .1890 7.6m/m 35/64 .5469
.6m/m .0236 sss 41 .0960 12 .1890 N .3020 14.m/m .5512
73 .0240 40 .0980 11 .1910 7.7m/m .3031 9/16 .5625
72 .0250 2.5m/m .0984 4.9m/m .1929 7.8m/m .3071 14.5m/m .5709
71 .0260 39 .0995 10 .1935 7.9m/m .3110 37/64 .5781
.7m/m .0276 38 .1015 9 .1960 5/16 .3125 15.m/m .5906
70 .0280 2.6m/m .1024 5.m/m .1969 8.m/m .3150 19/32 .5938
69 .0292 37 .1040 8 .1990 O .3160 39/64 .6094
.75m/m .0295 2.7m/m .1063 5.1m/m .2008 8.1m/m .3189 15.5m/m .6102
68 .0310 36 .1065 7 .2010 8.2m/m .3228 5/8 .6250
1/32 .0312 13/64 .2031 P .3230 16.m/m .6299
.8m/m .0315 7/64 .1094 6 .2040 8.3m/m .3268 41/64 .6406
67 .0320 35 .1100 5.2m/m .2047 21/64 .3281 16.5m/m .6496
66 .0330 2.8m/m .1102 5 .2055 8.4m/m .3307 21/32 .6562
65 .0350 34 .1110 5.3m/m .2087 Q .3320 17.m/m .6693
.9m/m .0354 33 .1130 4 .2090 8.5m/m .3346 43/64 .6719
64 .0360 2.9m/m .1142 5.4m/m .2126 8.6m/m .3386 11/16 .6875
63 .0370 32 .1160 3 .2130 R .3390 17.5m/m .6890
62 .0380 3.m/m .1181 5.5m/m .2165 8.7m/m .3425 45/64 .7031
61 .0390 31 .1200 7/32 .2188 11/32 .3438 18.m/m .7087
1.m/m .0394 3.1m/m .1220 5.6m/m .2205 8.8m/m .3465 23/32 .7188
60 .0400 1/8 .1250 2 .2210 S .3480 18.5m/m .7283
59 .0410 3.2m/m .1260 5.7m/m .2244 8.9m/m .3504 47/64 .7344
58 .0420 30 .1285 1 .2280 9.m/m .3543 19.m/m .7480
57 .0430 3.3m/m .1299 5.8m/m .2283 T .3580 3/4 .7500
1.1m/m .0433 3.4m/m .1339 5.9m/m .2323 9.1m/m .3583 49/64 .7656
56 .0465 29 .1360 A .2340 23/64 .3594 19.5m/m .7677
3/64 .0469 3.5m/m .1378 15/64 .2344 9.2m/m .3622 25/32 .7812
1.2m/m .0472 28 .1405 6.m/m .2362 9.3m/m .3661 20.m/m .7874
1.25m/m .0492 9/64 .1406 B .2380 U .3680 51/64 .7969
1.3m/m .0512 3.6m/m .1417 6.1m/m .2402 9.4m/m .3701 20.5m/m .8071
55 .0520 27 .1440 C .2420 9.5m/m .3740 13/16 .8125
54 .0550 3.7m/m .1457 6.2m/m .2441 3/8 .3750 21.m/m .8268
1.4m/m .0551 26 .1470 D .2460 V .3770 53/64 .8281
1.5m/m .0591 25 .1495 6.3m/m .2480 9.6m/m .3780 27/32 .8438
53 .0595 3.8m/m .1496 E .2500 9.7m/m .3819 21.5m/m .8465
1/16 .0625 24 .1520 1/4 .2500 9.8m/m .3858 55/64 .8594
1.6m/m .0630 3.9m/m .1535 6.4m/m .2520 W .3860 22.m/m .8661
52 .0635 23 .1540 6.5m/m .2559 9.9m/m .3898 7/8 .8750
1.7m/m .0669 5/32 .1562 F .2570 25/64 .3906 22.5m/m .8858
51 .0670 22 .1570 6.6m/m .2598 10.m/m .3937 57/64 .8906
1.75m/m .0689 4.m/m .1575 G .2610 X .3970 23.m/m .9055
50 .0700 21 .1590 6.7m/m .2638 Y .4040 29/32 .9062
1.8m/m .0709 20 .1610 17/64 .2656 13/32 .4062 59/64 .9219
49 .0730 4.1m/m .1614 H .2660 Z .4130 23.5m/m .9252
1.9m/m .0748 4.2m/m .1654 6.8m/m .2677 10.5m/m .4134 15/16 .9375
48 .0760 19 .1660 6.9m/m .2717 27/64 .4219 24.m/m .9449
5/64 .0781 4.3m/m .1693 I .2720 11.m/m .4331 61/64 .9531
47 .0785 18 .1695 7.m/m .2756 7/16 .4375 24.5m/m