136
.1mm
.2mm
.3mm
80
79
1/64
.4mm
78
77
.5mm
76
75
74
.6mm
73
72
71
.7mm
70
69
68
1/32
.8mm
67
66
65
.9mm
64
63
62
61
1mm
60
59
58
57
56
3/64
55
54
53
1/16
52
51
50
49
48
5/64
47
2mm
46
Decimal Equivalents
mm-
Inch-
Wire
.0039
.0079
.0118
.0135
.0145
.0156
.0157
.0160
.0180
.0197
.0200
.0210
.0225
.0236
.0240
.0250
.0260
.0276
.0280
.0292
.0310
.0312
.0315
.0320
.0330
.0350
.0354
.0360
.0370
.0380
.0390
.0394
.0400
.0410
.0420
.0430
.0465
.0469
.0520
.0550
.0595
.0625
.0635
.0670
.0700
.0730
.0760
.0781
.0785
.0787
.0810
Decimal
Inch
mm-
Inch-
Wire
Decimal
Inch
mm-
Inch-
Wire
Decimal
Inch
mm-
Inch-
Wire
Decimal
Inch
45
44
43
42
3/32
41
40
39
38
37
36
7/64
35
34
33
32
3mm
31
1/8
30
29
28
9/64
27
26
25
24
23
5/32
22
4mm
21
20
19
18
11/64
17
16
15
14
13
3/16
12
11
10
9
5mm
8
7
13/64
6
.0820
.0860
.0890
.0935
.0938
.0960
.0980
.0995
.1015
.1040
.1060
.1094
.1100
.1110
.1130
.1160
.1181
.1200
.1250
.1285
.1360
.1405
.1406
.1440
.1470
.1495
.1520
.1540
.1562
.1570
.1575
.1590
.1610
.1660
.1695
.1719
.1730
.1770
.1800
.1820
.1850
.1875
.1890
.1910
.1935
.1960
.1969
.1990
.2010
.2031
.2040
5
4
3
7/32
2
1
A
15/64
6mm
B
C
D
1/4 & E
F
G
17/64
H
I
7mm
J
K
9/32
L
M
19/64
N
5/16
8mm
O
P
21/64
Q
R
11/32
S
9mm
T
23/64
U
3/8
V
W
25/64
10mm
X
Y
13/32
Z
27/64
11mm
7/16
.2055
.2090
.2130
.2188
.2210
.2280
.2340
.2344
.2362
.2380
.2420
.2460
.2500
.2570
.2610
.2656
.2660
.2720
.2756
.2770
.2810
.2812
.2900
.2950
.2969
.3020
.3125
.3150
.3160
.3230
.3281
.3320
.3390
.3438
.3480
.3543
.3580
.3594
.3680
.3750
.3770
.3860
.3906
.3937
.3970
.4040
.4062
.4130
.4219
.4331
.4375
29/64
15/32
12mm
31/64
1/2
13mm
33/64
17/32
35/64
14mm
9/16
37/64
15mm
19/32
39/64
5/8
16mm
41/64
21/32
17mm
43/64
11/16
45/64
18mm
23/32
47/64
19mm
3/4
49/64
25/32
20mm
51/64
13/16
21mm
53/64
27/32
55/64
22mm
7/8
57/64
23mm
29/32
59/64
15/16
24mm
61/64
31/32
25mm
63/64
1”
.4531
.4688
.4724
.4844
.5000
.5118
.5156
.5313
.5469
.5512
.5625
.5781
.5906
.5938
.6094
.6250
.6299
.6406
.6562
.6693
.6719
.6875
.7031
.7087
.7188
.7344
.7480
.7500
.7656
.7812
.7874
.7969
.8125
.8268
.8281
.8438
.8594
.8661
.8750
.8906
.9055
.9062
.9219
.9375
.9449
.9531
.9688
.9843
.9844
1.0000
NUMBER AND LETTER DRILL SIZES
