| DECIMAL EQUIVALENTS | |
| Consecutive
listing of drill bit sizes in decimals from #80 to 1 inch stocked by VICTOR MACHINERY EXCHANGE, INC. |
| DRILL SIZE | DECIMAL EQUIVALENT |
|---|---|
|
#80
|
.0135" |
|
#79
|
.0145 |
|
1/64"
|
.0156 |
|
#78
|
.0160 |
|
#77
|
.0180 |
|
#76
|
.0200 |
|
#75
|
.0210 |
|
#74
|
.0225 |
|
#73
|
.0240 |
|
#72
|
.0250 |
|
#71
|
.0260 |
|
#70
|
.0280 |
|
#69
|
.0292 |
|
#68
|
.0310 |
|
1/32"
|
.0313 |
|
.80mm
|
.0315 |
|
#67
|
.0320 |
|
#66
|
.0330 |
|
.85mm
|
.0335 |
|
#65
|
.0350 |
|
.90mm
|
.0354 |
|
#64
|
.0360 |
|
#63
|
.0370 |
|
.95mm
|
.0374 |
|
#62
|
.0380 |
|
#61
|
.0390 |
|
1.00mm
|
.0394 |
|
#60
|
.0400 |
|
#59
|
.0410 |
|
1.05mm
|
.0413 |
|
#58
|
.0420 |
|
#57
|
.0430 |
|
1.10mm
|
.0433 |
|
1.15mm
|
.0453 |
|
#56
|
.0465 |
|
3/64"
|
.0469 |
|
1.20mm
|
.0472 |
|
1.25mm
|
.0492 |
|
1.30mm
|
.0512 |
|
#55
|
.0520 |
|
1.35mm
|
.0531 |
|
#54
|
.0550 |
|
1.40mm
|
.0551 |
|
1.45mm
|
.0571 |
|
1.50mm
|
.0591 |
|
#53
|
.0595 |
|
1.55mm
|
.0610 |
|
1/16"
|
.0625 |
|
1.60mm
|
.0630 |
|
#52
|
.0635 |
|
1.65mm
|
.0650 |
|
1.70mm
|
.0669 |
|
#51
|
.0670 |
|
1.75mm
|
.0689 |
|
#50
|
.0700 |
|
1.80mm
|
.0709 |
|
1.85mm
|
.0728 |
|
#49
|
.0730 |
|
1.90mm
|
.0748 |
|
#48
|
.0760 |
|
1.95mm
|
.0768 |
|
5/64"
|
.0781 |
|
#47
|
.0785 |
|
2.00mm
|
.0787 |
|
2.05mm
|
.0807 |
|
#46
|
.0810 |
|
#45
|
.0820 |
|
2.10mm
|
.0827 |
|
2.15mm
|
.0846 |
|
#44
|
.0860 |
|
2.20mm
|
.0866 |
|
2.25mm
|
.0886 |
|
#43
|
.0890 |
|
2.30mm
|
.0906 |
|
2.35mm
|
.0925 |
|
#42
|
.0935 |
|
3/32"
|
.0938 |
|
2.40mm
|
.0945 |
|
#41
|
.0960 |
|
2.45mm
|
.0965 |
|
#40
|
.0980 |
|
2.50mm
|
.0984 |
|
#39
|
.0995 |
|
2.55mm
|
.1004 |
|
#38
|
.1015 |
|
2.60mm
|
.1024 |
|
#37
|
.1040 |
|
2.65mm
|
.1043 |
|
2.70mm
|
.1063 |
|
#36
|
.1065 |
|
2.75mm
|
.1083 |
|
7/64"
|
.1094 |
|
#35
|
.1100 |
|
2.80mm
|
.1102 |
|
#34
|
.1110 |
|
2.85mm
|
.1122 |
|
#33
|
.1130 |
|
2.90mm
|
.1142 |
|
#32
|
.1160 |
|
2.95mm
|
.1161 |
|
3.00mm
|
.1181 |
|
#31
|
.1200 |
|
3.10mm
|
.1220 |
|
3.15mm
|
.1240 |
|
1/8"
|
.1250 |
|
3.20mm
|
.1260 |
|
3.25mm
|
.1280 |
|
#30
|
.1285 |
|
3.30mm
|
.1299 |
|
3.40mm
|
.1339 |
|
#29
|
.1360 |
|
3.50mm
|
.1378 |
|
#28
|
.1405 |
|
9/64"
|
.1406 |
|
3.60mm
|
.1417 |
|
#27
|
.1440 |
|
3.70mm
|
.1457 |
|
#26
|
.1470 |
|
3.75mm
|
.1476 |
|
#25
|
.1495 |
|
3.80mm
|
.1496 |
|
#24
|
.1520 |
|
3.90mm
|
.1535 |
|
#23
|
.1540 |
|
5/32"
|
.1562 |
|
#22
|
.1570 |
|
4.00mm
|
.1575 |
|
#21
|
.1590 |
|
#20
|
.1610 |
|
4.10mm
|
.1614 |
|
4.20mm
|
.1654 |
|
#19
|
.1660 |
|
4.25mm
|
.1673 |
|
4.30mm
|
.1693 |
|
#18
|
.1695 |
|
11/64"
|
.1719 |
|
#17
|
.1730 |
|
4.40mm
|
.1732 |
|
#16
|
.1770 |
|
4.50mm
|
.1772 |
|
#15
|
.1800 |
|
4.60mm
|
.1811 |
|
#14
|
.1820 |
|
#13
|
.1850 |
|
4.70mm
|
.1850 |
|
4.75mm
|
.1870 |
|
3/16"
|
.1875 |
|
#12
|
.1890 |
|
4.80mm
|
.1890 |
|
#11
|
.1910 |
|
4.90mm
|
.1929 |
|
#10
|
.1935 |
|
#9
|
.1960 |
|
5.00mm
|
.1969 |
|
#8
|
.1990 |
|
5.10mm
|
.2008 |
|
#7
|
.2010 |
|
13/64"
|
.2031 |
|
#6
|
.2040 |
|
5.20mm
|
.2047 |
|
#5
|
.2055 |
|
5.25mm
|
.2067 |
|
5.30mm
|
.2087 |
|
$4
|
.2090 |
|
5.40mm
|
.2126 |
|
#3
|
.2130 |
|
5.50mm
|
.2165 |
|
7/32"
|
.2188 |
|
5.60mm
|
.2205 |
|
#2
|
.2210 |
|
5.70mm
|
.2244 |
|
5.75mm
|
.2264 |
|
#1
|
.2280 |
|
5.80mm
|
.2283 |
| DRILL SIZE | DECIMAL EQUIVALENT |
|---|---|
|
5.90mm
|
.2323 |
|
A
|
.2340 |
|
15/64"
|
.2344 |
|
6.00mm
|
.2362 |
|
B
|
.2380 |
|
6.10mm
|
.2402 |
|
C
|
.2420 |
|
6.20mm
|
.2441 |
|
D
|
.2460 |
|
6.25mm
|
.2461 |
|
6.30mm
|
.2480 |
|
1/4"
|
.2500 |
|
E
|
.2500 |
|
6.40mm
|
.2520 |
|
6.50mm
|
.2559 |
|
F
|
.2570 |
|
6.60mm
|
.2598 |
|
G
|
.2610 |
|
6.70mm
|
.2638 |
|
17/64"
|
.2656 |
|
6.75mm
|
.2657 |
|
H
|
.2660 |
|
6.80mm
|
.2677 |
|
6.90mm
|
.2717 |
|
I
|
.2720 |
|
7.00mm
|
.2756 |
|
J
|
.2770 |
|
7.10mm
|
.2795 |
|
K
|
.2810 |
|
9/32"
|
.2812 |
|
7.20mm
|
.2835 |
|
7.25mm
|
.2854 |
|
7.30mm
|
.2874 |
|
L
|
.2900 |
|
7.40mm
|
.2913 |
|
M
|
.2950 |
|
7.50mm
|
.2953 |
|
19/64"
|
.2969 |
|
7.60mm
|
.2992 |
|
N
|
.3020 |
|
7.70mm
|
.3031 |
|
7.80mm
|
.3071 |
|
7.90mm
|
.3110 |
|
5/16"
|
.3125 |
|
8.00mm
|
.3150 |
|
O
|
.3160 |
|
8.10mm
|
.3189 |
|
8.20mm
|
.3228 |
|
P
|
.3230 |
|
8.25mm
|
.3248 |
|
8.30mm
|
.3268 |
|
21/64"
|
.3281 |
|
8.40mm
|
.3307 |
|
Q
|
.3320 |
|
8.50mm
|
.3346 |
|
8.60mm
|
.3386 |
|
R
|
.3390 |
|
8.70mm
|
.3425 |
|
11/32"
|
.3438 |
|
8.75mm
|
.3445 |
|
8.80mm
|
.3465 |
|
S
|
.3480 |
|
8.90mm
|
.3504 |
|
9.00mm
|
.3543 |
|
T
|
.3580 |
|
9.10mm
|
.3583 |
|
23/64"
|
.3594 |
|
9.20mm
|
.3622 |
|
9.25mm
|
.3642 |
|
9.30mm
|
.3661 |
|
U
|
.3680 |
|
9.40mm
|
.3701 |
|
9.50mm
|
.3740 |
|
3/8"
|
.3750 |
|
V
|
.3770 |
|
9.60mm
|
.3780 |
|
9.70mm
|
.3819 |
|
9.75mm
|
.3839 |
|
9.80mm
|
.3858 |
|
W
|
.3860 |
|
9.90mm
|
.3898 |
|
25/64"
|
.3906 |
|
10.00mm
|
.3937 |
|
X
|
.3970 |
|
10.10mm
|
.3976 |
|
10.20mm
|
.4016 |
|
10.25mm
|
.4035 |
|
Y
|
.4040 |
|
10.30mm
|
.4055 |
|
13/32"
|
.4062 |
|
10.40mm
|
.4094 |
|
Z
|
.4130 |
|
10.50mm
|
.4134 |
|
10.60mm
|
.4173 |
|
10.70mm
|
.4213 |
|
27/64"
|
.4219 |
|
10.80mm
|
.4252 |
|
10.90mm
|
.4291 |
|
11.00mm
|
.4331 |
|
11.10mm
|
.4370 |
|
7/16"
|
.4375 |
|
11.20mm
|
.4409 |
|
11.25mm
|
.4429 |
|
11.30mm
|
.4449 |
|
11.40mm
|
.4488 |
|
11.50mm
|
.4528 |
|
29/64"
|
.4531 |
|
11.60mm
|
.4567 |
|
11.70mm
|
.4606 |
|
11.75mm
|
.4626 |
|
11.80mm
|
.4646 |
|
11.90mm
|
.4685 |
|
15/32"
|
.4688 |
|
12.00mm
|
.4724 |
|
31/64"
|
.4844 |
|
12.50mm
|
.4921 |
|
1/2"
|
.5000 |
|
13.00mm
|
.5118 |
|
33/64"
|
.5156 |
|
17/32"
|
.5313 |
|
13.50mm
|
.5315 |
|
35/64"
|
.5469 |
|
14.00mm
|
.5512 |
|
9/16"
|
.5625 |
|
14.50mm
|
.5709 |
|
37/64"
|
.5781 |
|
15.00mm
|
.5906 |
|
19/32"
|
.5938 |
|
39/64"
|
.6094 |
|
15.50mm
|
.6102 |
|
5/8"
|
.6250 |
|
16.00mm
|
.6299 |
|
41/64"
|
.6406 |
|
16.50mm
|
.6496 |
|
21/32"
|
.6562 |
|
17.00mm
|
.6693 |
|
43/64"
|
.6719 |
|
11/16"
|
.6875 |
|
17.50mm
|
.6890 |
|
45/64"
|
.7031 |
|
18.00mm
|
.7087 |
|
23/32"
|
.7188 |
|
18.50mm
|
.7283 |
|
47/64"
|
.7344 |
|
19.00mm
|
.7480 |
|
3/4"
|
.7500 |
|
49/64"
|
.7656 |
|
19.50mm
|
.7677 |
|
25/32"
|
.7812 |
|
20.00mm
|
.7874 |
|
51/64"
|
.7969 |
|
20.50mm
|
.8071 |
|
13/16"
|
.8125 |
|
21.00mm
|
.8268 |
|
53/64"
|
.8281 |
|
27/32"
|
.8438 |
|
21.50mm
|
.8465 |
|
55/64"
|
.8594 |
|
22.00mm
|
.8661 |
|
7/8"
|
.8750 |
|
22.50mm
|
.8858 |
|
57/64"
|
.8906 |
|
23.00mm
|
.9055 |
|
29/32"
|
.9062 |
|
59/64"
|
.9219 |
|
23.50mm
|
.9252 |
|
15/16"
|
.9375 |
|
24.00mm
|
.9449 |
|
61/64"
|
.9531 |
|
24.50mm
|
.9646 |
|
31/32"
|
.9688 |
|
25.00mm
|
.9843 |
|
63/64"
|
.9844 |
|
1"
|
1.000 |