Standard Drill Sizes Chart

StandardDrillSizesChart.pdf

Standard Drill Sizes Decimal Equivalents

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

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