SIZING CHART \ DRILL OR HOLE
MM (MILLIMETERS) | CM (CENTIMETERS) | INCHES | WIRE GAUGE NO. | INCHES | MM (MILLIMETERS) | |
1 |
0.1 |
0.04 |
10 | 0.102 | 2.59 | |
2 |
0.2 | 0.08 | 11 | 0.091 | 2.31 | |
3 |
0.3 | 0.12 | 12 | 0.081 | 2.06 | |
4 |
0.4 | 0.16 | 13 | 0.072 | 1.83 | |
5 |
0.5 | 0.20 | 14 | 0.064 | 1.63 | |
6 |
0.6 | 0.24 | 15 | 0.057 | 1.45 | |
7 |
0.7 | 0.28 | 16 | 0.052 | 1.29 | |
8 |
0.8 | 0.31 | 17 | 0.045 | 1.14 | |
9 |
0.9 | 0.35 | 18 | 0.04 | 1.02 | |
10 |
1 | 0.39 | 19 | 0.036 | 0.91 | |
11 |
1.1 | 0.43 | 20 | 0.032 | 0.81 | |
12 |
1.2 | 0.47 | 21 | 0.028 | 0.71 | |
13 |
1.3 | 0.51 | 22 | 0.025 | 0.64 | |
14 |
1.4 | 0.55 | 23 | 0.023 | 0.58 | |
15 |
1.5 | 0.59 | 24 | 0.02 | 0.51 | |
16 |
1.6 | 0.63 | ||||
17 |
1.7 | 0.67 | ||||
18 |
1.8 | 0.71 | ||||
19 |
1.9 | 0.75 | ||||
20 |
2 | 0.79 | ||||
21 |
2.1 | 0.83 | ||||
22 |
2.2 | 0.87 | ||||
23 |
2.3 | 0.91 | ||||
24 |
2.4 | 0.94 | ||||
25 |
2.5 | 0.98 | ||||
26 |
2.6 | 1.02 | ||||
27 |
2.7 | 1.06 | ||||
28 |
2.8 | 1.10 | ||||
29 |
2.9 | 1.14 | ||||
30 |
3 | 1.18 | ||||
31 |
3.1 | 1.22 | ||||
32 |
3.2 | 1.26 | ||||
33 |
3.3 | 1.30 | ||||
34 |
3.4 | 1.34 | ||||
35 |
3.5 | 1.38 | ||||
36 |
3.6 | 1.42 | ||||
37 |
3.7 | 1.46 | ||||
38 |
3.8 | 1.50 | ||||
39 |
3.9 | 1.54 | ||||
40 |
4 | 1.57 |

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Black Spinel
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Blue Chalcedony
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Boulder Opal
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Dendrite Opal
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Lemon Quartz
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Mother of Pearl
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Rainbow Moonstone
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Rose Quartz
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Rutile Quartz
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Smoky Quartz
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