Drill Diameter Cross Reference Table
Drill |
Diam. |
Drill |
Diam. |
Drill |
Diam. |
Drill |
Diam. |
Drill |
Diam. |
1.00mm |
0.0394 |
2.05mm |
0.0807 |
30 |
0.1285 |
4.75mm |
0.1870 |
6.25mm |
0.2461 |
60 |
0.0400 |
46 |
0.0810 |
3.30mm |
0.1299 |
3/16 |
0.1875 |
6.30mm |
0.2480 |
59 |
0.0410 |
45 |
0.0820 |
3.40mm |
0.1339 |
12 |
0.1890 |
E |
0.2500 |
1.05mm |
0.0413 |
2.10mm |
0.0827 |
29 |
0.1360 |
4.80mm |
0.1890 |
1/4 |
0.2500 |
58 |
0.0420 |
2.15mm |
0.0846 |
3.50mm |
0.1378 |
11 |
0.1910 |
6.40mm |
0.2520 |
57 |
0.0430 |
44 |
0.0860 |
28 |
0.1405 |
4.90mm |
0.1929 |
6.50mm |
0.2559 |
1.10mm |
0.0433 |
2.20mm |
0.0866 |
9/64 |
0.1406 |
10 |
0.1935 |
F |
0.2570 |
1.15mm |
0.0453 |
2.25mm |
0.0886 |
3.60mm |
0.1417 |
9 |
0.1960 |
6.60mm |
0.2598 |
56 |
0.0465 |
43 |
0.0890 |
27 |
0.1440 |
5.00mm |
0.1969 |
G |
0.2610 |
3/64 |
0.0469 |
2.30mm |
0.0906 |
3.70mm |
0.1457 |
8 |
0.1990 |
6.70mm |
0.2638 |
1.20mm |
0.0472 |
2.35mm |
0.0925 |
26 |
0.1470 |
5.10mm |
0.2008 |
17/64 |
0.2656 |
1.25mm |
0.0492 |
42 |
0.0935 |
3.75mm |
0.1476 |
7 |
0.2010 |
6.75mm |
0.2657 |
1.30mm |
0.0512 |
3/32 |
0.0938 |
25 |
0.1495 |
13/64 |
0.2031 |
H |
0.2660 |
55 |
0.0520 |
2.40mm |
0.0945 |
3.80mm |
0.1496 |
6 |
0.2040 |
6.80mm |
0.2677 |
1.35mm |
0.0531 |
41 |
0.0960 |
24 |
0.1520 |
5.20mm |
0.2047 |
6.90mm |
0.2717 |
54 |
0.0550 |
2.45mm |
0.0965 |
3.90mm |
0.1535 |
5 |
0.2055 |
I |
0.2720 |
1.40mm |
0.0551 |
40 |
0.0980 |
23 |
0.1540 |
5.25mm |
0.2067 |
7.00mm |
0.2756 |
1.45mm |
0.0571 |
2.50mm |
0.0984 |
5/32 |
0.1563 |
5.30mm |
0.2087 |
J |
0.2770 |
1.50mm |
0.0591 |
39 |
0.0995 |
22 |
0.1570 |
4 |
0.2090 |
7.10mm |
0.2795 |
53 |
0.0595 |
38 |
0.1015 |
4.00mm |
0.1575 |
5.40mm |
0.2126 |
K |
0.2810 |
1.55mm |
0.0610 |
2.60mm |
0.1024 |
21 |
0.1590 |
3 |
0.2130 |
9/32 |
0.2812 |
1/16 |
0.0625 |
37 |
0.1040 |
20 |
0.1610 |
5.50mm |
0.2165 |
7.20mm |
0.2835 |
1.60mm |
0.0630 |
2.70mm |
0.1063 |
4.10mm |
0.1614 |
7/32 |
0.2188 |
7.25mm |
0.2854 |
52 |
0.0635 |
36 |
0.1065 |
4.20mm |
0.1654 |
5.60mm |
0.2205 |
7.30mm |
0.2874 |
1.65mm |
0.0650 |
2.75mm |
0.1083 |
19 |
0.1660 |
2 |
0.2210 |
L |
0.2900 |
1.70mm |
0.0669 |
7/64 |
0.1094 |
4.25mm |
0.1673 |
5.70mm |
0.2244 |
7.40mm |
0.2913 |
51 |
0.0670 |
35 |
0.1100 |
4.30mm |
0.1693 |
5.75mm |
0.2264 |
M |
0.2950 |
1.75mm |
0.0689 |
2.80mm |
0.1102 |
18 |
0.1695 |
1 |
0.2280 |
7.50mm |
0.2953 |
50 |
0.0700 |
34 |
0.1110 |
11/64 |
0.1719 |
5.80mm |
0.2283 |
19/64 |
0.2969 |
1.80mm |
0.0709 |
33 |
0.1130 |
17 |
0.1730 |
5.90mm |
0.2323 |
7.60mm |
0.2992 |
1.85mm |
0.0728 |
2.90mm |
0.1142 |
4.40mm |
0.1732 |
A |
0.2340 |
N |
0.3020 |
49 |
0.0730 |
32 |
0.1160 |
16 |
0.1770 |
15/64 |
0.2344 |
7.70mm |
0.3031 |
1.90mm |
0.0748 |
3.00mm |
0.1181 |
4.50mm |
0.1772 |
6.00mm |
0.2362 |
7.75mm |
0.3051 |
48 |
0.0760 |
31 |
0.1200 |
15 |
0.1800 |
B |
0.2380 |
7.80mm |
0.3071 |
1.95mm |
0.0768 |
3.10mm |
0.1220 |
4.60mm |
0.1811 |
6.10mm |
0.2402 |
7.90mm |
0.3110 |
5/64 |
0.0781 |
1/8 |
0.1250 |
14 |
0.1820 |
C |
0.2420 |
5/16 |
0.3125 |
47 |
0.0785 |
3.20mm |
0.1260 |
13 |
0.1850 |
6.20mm |
0.2441 |
8.00mm |
0.3150 |
2.00mm |
0.0787 |
3.25mm |
0.1280 |
4.70mm |
0.1850 |
D |
0.2460 |
O |
0.3160 |