Decimal Equivalents of Wire, Letter and Fractional Size Drills

DRILL
SIZE

80
79
1/64
78
77
76
75
74
73
72
71
70
69
68
1/32
67
66
65
64
63
62
61
60
59
58
57
56
3/64
55
54
53
1/16
52
51
50
49
48
5/64
47
46
45
44
43
42
3/32
41
40
39
38
37
36
7/64
35
34
33
32
31
1/8
30
29
28
9/64
27
26
25
24
23
5/32
22
21
20
19
18
11/64
17
16
15
14
13
3/16
12
11
10
9
8
7
13/64
6
5
4
3
7/32
2
1
A
15/64
B
C
D
1/4
E
F
G
17/64
H
I
J
K
9/32
L
M
19/64
N
5/16
O
P
21/64
Q
R
11/32
S
T
23/64
U
3/8
V
W
25/64
X
Y
13/32
Z
27/64
7/16
29/64
15/32
31/64
1/2
33/64
17/32
35/64
9/16
37/64
19/32
39/64
5/8
41/64
21/32
43/64
11/16
45/64
23/32
47/64
3/4
49/64
25/32
51/64
13/16
53/64
27/32
55/64
7/8
57/64
29/32
59/64
15/16
61/64
31/32
63/64
1

DECIMAL

.0135
.0145
.0156
.0160
.0180
.0200
.0210
.0225
.0240
.0250
.0260
.0280
.0292
.0310
.0313
.0320
.0330
.0350
.0360
.0370
.0380
.0390
.0400
.0410
.0420
.0430
.0465
.0469
.0520
.0550
.0595
.0625
.0635
.0670
.0700
.0730
.0760
.0781
.0785
.0810
.0820
.0860
.0890
.0935
.0938
.0960
.0980
.0995
.1015
.1040
.1065
.1094
.1100
.1110
.1130
.1160
.1200
.1250
.1285
.1360
.1405
.1406
.1440
.1470
.1495
.1520
.1540
.1562
.1570
.1590
.1610
.1660
.1695
.1719
.1730
.1770
.1800
.1820
.1850
.1875
.1890
.1910
.1935
.1960
.1990
.2010
.2031
.2040
.2055
.2090
.2130
.2188
.2210
.2280
.2340
.2344
.2380
.2420
.2460
.2500
.2500
.2570
.2610
.2656
.2660
.2720
.2770
.2810
.2812
.2900
.2950
.2969
.3020
.3125
.3160
.3230
.3281
.3320
.3390
.3438
.3480
.3580
.3594
.3680
.3750
.3770
.3860
.3906
.3970
.4040
.4062
.4130
.4219
.4375
.4531
.4688
.4844
.5000
.5156
.5313
.5469
.5625
.5781
.5938
.6094
.6250
.6406
.6562
.6719
.6875
.7031
.7188
.7344
.7500
.7656
.7812
.7969
.8125
.8281
.8438
.8594
.8750
.8906
.9062
.9219
.9375
.9531
.9688
.9844
1.0000


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