Drill Decimal Equivelant Chart
| Drill Size Number | Decimal Equivalent | Drill Size Number | Decimal Equivalent | Drill Size Letter | Decimal Equivalent | Drill Size Fraction | Decimal Equivalent |
| 60 |
0.0400 |
30 |
0.1285 |
A |
0.2340 |
1/16 |
0.0625 |
| 59 |
0.0410 |
29 |
0.1360 |
B |
0.2380 |
5/64 |
0.0781 |
| 58 |
0.0420 |
28 |
0.1405 |
C |
0.2420 |
3/32 |
0.0938 |
| 57 |
0.0430 |
27 |
0.1440 |
D |
0.2460 |
7/64 |
0.1094 |
| 56 |
0.0465 |
26 |
0.1470 |
E |
0.2500 |
1/8 |
0.1250 |
| 55 |
0.0520 |
25 |
0.1495 |
F |
0.2570 |
9/64 |
0.1406 |
| 54 |
0.0550 |
24 |
0.1520 |
G |
0.2610 |
5/32 |
0.1563 |
| 53 |
0.0595 |
23 |
0.1540 |
H |
0.2660 |
11/64 |
0.1719 |
| 52 |
0.0635 |
22 |
0.1570 |
I |
0.2720 |
3/16 |
0.1875 |
| 51 |
0.0670 |
21 |
0.1590 |
J |
0.2770 |
13/64 |
0.2031 |
| 50 |
0.0700 |
20 |
0.1610 |
K |
0.2810 |
7/32 |
0.2188 |
| 49 |
0.0730 |
19 |
0.1660 |
L |
0.2900 |
15/64 |
0.2344 |
| 48 |
0.0760 |
18 |
0.1695 |
M |
0.2950 |
1/4 |
0.2500 |
| 47 |
0.0785 |
17 |
0.1730 |
N |
0.3020 |
17/64 |
0.2656 |
| 46 |
0.0810 |
16 |
0.1770 |
O |
0.3160 |
9/32 |
0.2813 |
| 45 |
0.0820 |
15 |
0.1800 |
P |
0.3230 |
19/64 |
0.2969 |
| 44 |
0.0860 |
14 |
0.1820 |
Q |
0.3320 |
5/16 |
0.3125 |
| 43 |
0.0890 |
13 |
0.1850 |
R |
0.3390 |
21/64 |
0.3281 |
| 42 |
0.0935 |
12 |
0.1890 |
S |
0.3480 |
11/32 |
0.3438 |
| 41 |
0.0960 |
11 |
0.1910 |
T |
0.3580 |
23/64 |
0.3594 |
| 40 |
0.0980 |
10 |
0.1935 |
U |
0.3680 |
3/8 |
0.3750 |
| 39 |
0.0995 |
9 |
0.1960 |
V |
0.3770 |
25/64 |
0.3906 |
| 38 |
0.1015 |
8 |
0.1990 |
W |
0.3860 |
13/32 |
0.4063 |
| 37 |
0.1040 |
7 |
0.2010 |
X |
0.3970 |
27/64 |
0.4219 |
| 36 |
0.1065 |
6 |
0.2040 |
Y |
0.4040 |
7/16 |
0.4375 |
| 35 |
0.1100 |
5 |
0.2055 |
Z |
0.4130 |
29/64 |
0.4531 |
| 34 |
0.1110 |
4 |
0.2090 |
15/32 |
0.4688 |
||
| 33 |
0.1130 |
3 |
0.2130 |
31/64 |
0.4844 |
||
| 32 |
0.1160 |
2 |
0.2210 |
1/2 |
0.5000 |
||
| 31 |
0.1200 |
1 |
0.2280 |
|
