DRILL SIZE CHART
FRACT SIZE |
# SIZE |
LETTER SIZE |
METRIC SIZE |
DECIMAL INCHES |
|
80 |
|
|
0.0135 |
|
79 |
|
|
0.0145 |
1/64 |
|
|
|
0.0156 |
|
78 |
|
|
0.0160 |
|
77 |
|
|
0.0180 |
|
|
|
,5 |
0.0197 |
|
76 |
|
|
0.0200 |
|
75 |
|
|
0.0210 |
|
74 |
|
|
0.0225 |
|
73 |
|
|
0.0240 |
|
72 |
|
|
0.0250 |
|
71 |
|
|
0.0260 |
|
70 |
|
|
0.0280 |
|
69 |
|
|
0.0292 |
|
|
|
,75 |
0.0295 |
|
68 |
|
|
0.0310 |
1/32 |
|
|
|
0.0312 |
|
67 |
|
|
0.0320 |
|
66 |
|
|
0.0330 |
|
65 |
|
|
0.0350 |
|
64 |
|
|
0.0360 |
|
63 |
|
|
0.0370 |
|
62 |
|
|
0.0380 |
|
61 |
|
|
0.0390 |
|
|
|
1 |
0.0394 |
|
60 |
|
|
0.0400 |
|
59 |
|
|
0.0410 |
|
58 |
|
|
0.0420 |
|
57 |
|
|
0.0430 |
|
56 |
|
|
0.0465 |
3/64 |
|
|
|
0.0469 |
|
|
|
1,25 |
0.0492 |
|
55 |
|
|
0.0520 |
|
54 |
|
|
0.0550 |
|
|
|
1,5 |
0.0591 |
|
53 |
|
|
0.0595 |
1/16 |
|
|
|
0.0625 |
|
52 |
|
|
0.0635 |
|
51 |
|
|
0.0670 |
|
|
|
1,75 |
0.0689 |
|
50 |
|
|
0.0700 |
|
49 |
|
|
0.0730 |
|
48 |
|
|
0.0760 |
5/64 |
|
|
|
0.0781 |
|
47 |
|
|
0.0785 |
|
|
|
2 |
0.0787 |
|
46 |
|
|
0.0810 |
|
45 |
|
|
0.0820 |
|
44 |
|
|
0.0860 |
|
|
|
2,25 |
0.0886 |
|
43 |
|
|
0.0890 |
|
42 |
|
|
0.0935 |
3/32 |
|
|
|
0.0938 |
|
41 |
|
|
0.0960 |
|
40 |
|
|
0.0980 |
|
|
|
2,5 |
0.0984 |
|
39 |
|
|
0.0995 |
|
38 |
|
|
0.1015 |
|
37 |
|
|
0.1040 |
|
36 |
|
|
0.1065 |
|
|
|
2,75 |
0.1083 |
7/64 |
|
|
|
0.1094 |
|
35 |
|
|
0.1100 |
|
34 |
|
|
0.1110 |
|
33 |
|
|
0.1130 |
|
32 |
|
|
0.1160 |
|
|
|
3 |
0.1181 |
|
31 |
|
|
0.1200 |
1/8 |
|
|
|
0.1250 |
|
|
|
3,25 |
0.1280 |
|
30 |
|
|
0.1285 |
|
29 |
|
|
0.1360 |
|
|
|
3,5 |
0.1378 |
|
28 |
|
|
0.1405 |
9/64 |
|
|
|
0.1406 |
|
27 |
|
|
0.1440 |
|
26 |
|
|
0.1470 |
|
|
|
3,75 |
0.1476 |
|
25 |
|
|
0.1495 |
|
24 |
|
|
0.1520 |
|
23 |
|
|
0.1540 |
5/32 |
|
|
|
0.1562 |
|
22 |
|
|
0.1570 |
|
|
|
4 |
0.1575 |
|
21 |
|
|
0.1590 |
|
20 |
|
|
0.1610 |
|
19 |
|
|
0.1660 |
|
|
|
4,25 |
0.1673 |
|
18 |
|
|
0.1695 |
11/64 |
|
|
|
0.1719 |
|
17 |
|
|
0.1730 |
|
16 |
|
|
0.1770 |
|
|
|
4,5 |
0.1772 |
|
15 |
|
|
0.1800 |
|
14 |
|
|
0.1820 |
|
13 |
|
|
0.1850 |
|
|
|
4,75 |
0.1870 |
3/16 |
|
|
|
0.1875 |
|
12 |
|
|
0.1890 |
|
11 |
|
|
0.1910 |
|
10 |
|
|
0.1935 |
|
9 |
|
|
0.1960 |
|
|
|
5 |
0.1969 |
|
8 |
|
|
0.1990 |
|
7 |
|
|
0.2010 |
13/64 |
|
|
|
0.2031 |
|
6 |
|
|
0.2040 |
|
5 |
|
|
0.2055 |
|
|
|
5,25 |
0.2067 |
|
4 |
|
|
0.2090 |
|
3 |
|
|
0.2130 |
|
|
|
5,5 |
0.2165 |
7/32 |
|
|
|
0.2188 |
|
2 |
|
|
0.2210 |
|
|
|
5,75 |
0.2264 |
|
1 |
|
|
0.2280 |
|
|
A |
|
0.2340 |
15/64 |
|
|
|
0.2344 |
|
|
|
6 |
0.2362 |
|
|
B |
|
0.2380 |
|
|
C |
|
0.2420 |
|
|
D |
|
0.2460 |
|
|
|
6,25 |
0.2461 |
1/4 |
|
E |
|
0.2500 |
|
|
|
6,5 |
0.2559 |
|
|
F |
|
0.2570 |
|
|
G |
|
0.2610 |
17/64 |
|
|
|
0.2656 |
|
|
|
6,75 |
0.2657 |
|
|
H |
|
0.2660 |
|
|
I |
|
0.2720 |
|
|
|
7 |
0.2756 |
|
|
J |
|
0.2770 |
|
|
K |
|
0.2810 |
9/32 |
|
|
|
0.2812 |
|
|
|
7,25 |
0.2854 |
|
|
L |
|
0.2900 |
|
|
M |
|
0.2950 |
|
|
|
7,5 |
0.2953 |
19/64 |
|
|
|
0.2969 |
|
|
N |
|
0.3020 |
|
|
|
7,75 |
0.3051 |
5/16 |
|
|
|
0.3125 |
|
|
|
8 |
0.3150 |
|
|
O |
|
0.3160 |
|
|
P |
|
0.3230 |
|
|
|
8,25 |
0.3248 |
21/64 |
|
|
|
0.3281 |
|
|
Q |
|
0.3320 |
|
|
|
8,5 |
0.3346 |
|
|
R |
|
0.3390 |
11/32 |
|
|
|
0.3438 |
|
|
|
8,75 |
0.3445 |
|
|
S |
|
0.3480 |
|
|
|
9 |
0.3543 |
|
|
T |
|
0.3580 |
23/64 |
|
|
|
0.3594 |
|
|
|
9,25 |
0.3642 |
|
|
U |
|
0.3680 |
|
|
|
9,5 |
0.3740 |
3/8 |
|
|
|
0.3750 |
|
|
V |
|
0.3770 |
|
|
|
9,75 |
0.3839 |
|
|
W |
|
0.3860 |
25/64 |
|
|
|
0.3906 |
|
|
|
10 |
0.3937 |
|
|
X |
|
0.3970 |
|
|
Y |
|
0.4040 |
13/32 |
|
|
|
0.4063 |
|
|
Z |
|
0.4130 |
|
|
|
10,5 |
0.4134 |
27/64 |
|
|
|
0.4219 |
|
|
|
11 |
0.4331 |
7/16 |
|
|
|
0.4375 |
|
|
|
11,5 |
0.4528 |
29/64 |
|
|
|
0.4531 |
15/32 |
|
|
|
0.4688 |
|
|
|
12 |
0.4724 |
31/64 |
|
|
|
0.4844 |
|
|
|
12,5 |
0.4921 |
1/2 |
|
|
|
0.5000 |
|
|
|
13 |
0.5118 |
33/64 |
|
|
|
0.5156 |
17/32 |
|
|
|
0.5312 |
|
|
|
13,5 |
0.5315 |
35/64 |
|
|
|
0.5469 |
|
|
|
14 |
0.5512 |
9/16 |
|
|
|
0.5625 |
|
|
|
14,5 |
0.5709 |
37/64 |
|
|
|
0.5781 |
|
|
|
15 |
0.5906 |
19/32 |
|
|
|
0.5938 |
39/64 |
|
|
|
0.6094 |
|
|
|
15,5 |
0.6102 |
5/8 |
|
|
|
0.6250 |
|
|
|
16 |
0.6299 |
41/64 |
|
|
|
0.6406 |
|
|
|
16,5 |
0.6496 |
21/32 |
|
|
|
0.6562 |
|
|
|
17 |
0.6693 |
43/64 |
|
|
|
0.6719 |
11/16 |
|
|
|
0.6875 |
|
|
|
17,5 |
0.6890 |
45/64 |
|
|
|
0.7031 |
|
|
|
18 |
0.7087 |
23/32 |
|
|
|
0.7188 |
|
|
|
18,5 |
0.7283 |
47/64 |
|
|
|
0.7344 |
|
|
|
19 |
0.7480 |
3/4 |
|
|
|
0.7500 |
49/64 |
|
|
|
0.7656 |
|
|
|
19,5 |
0.7677 |
25/32 |
|
|
|
0.7813 |
|
|
|
20 |
0.7874 |
51/64 |
|
|
|
0.7969 |
|
|
|
20,5 |
0.8071 |
13/16 |
|
|
|
0.8125 |
|
|
|
21 |
0.8268 |
53/64 |
|
|
|
0.8281 |
27/32 |
|
|
|
0.8438 |
|
|
|
21,5 |
0.8465 |
55/64 |
|
|
|
0.8594 |
|
|
|
22 |
0.8661 |
7/8 |
|
|
|
0.8750 |
|
|
|
22,5 |
0.8858 |
57/64 |
|
|
|
0.8906 |
|
|
|
23 |
0.9055 |
29/32 |
|
|
|
0.9062 |
59/64 |
|
|
|
0.9219 |
|
|
|
23,5 |
0.9252 |
15/16 |
|
|
|
0.9375 |
|
|
|
24 |
0.9449 |
61/64 |
|
|
|
0.9531 |
|
|
|
24,5 |
0.9646 |
31/32 |
|
|
|
0.9688 |
|
|
|
25 |
0.9843 |
63/64 |
|
|
|
0.9844 |
1 |
|
|
|
1.0000 |