| Diâmetro |
MA |
MB |
Diam.
da Broca p/ Rosca NC (Grossa) |
Grossa |
Fina |
||
| M3 |
0.50 |
0.35 |
2.5 |
| M4 |
0.70 |
0.50 |
3.3 |
| M5 |
0.80 |
0.50 |
4.2 |
| M6 |
1.00 |
0.75 |
5.0 |
| M8 |
1.25 |
1.00 |
6.8 |
| M10 |
1.50 |
1.00 |
8.5 |
| M12 |
1.75 |
1.50 |
10.2 |
| M14 |
2.00 |
1.50 |
12.0 |
| M16 |
2.00 |
1.50 |
14.0 |
| M18 |
2.50 |
1.50 |
15.5 |
| M20 |
2.50 |
1.50 |
17.5 |
| M22 |
2.50 |
1.50 |
19.5 |
| M24 |
3.00 |
2.00 |
21.0 |
| Bitolas |
NC |
NF |
Diam.
da Broca p/ Rosca NC (Grossa) |
Grossa |
Fina |
||
| 1/8 |
40 |
44 |
2.5 |
| 5/32 |
32 |
36 |
3.1 |
| 3/16 |
24 |
32 |
3.6 |
| 7/32 |
24 |
28 |
4.4 |
| 1/4 |
20 |
28 |
5.1 |
| 5/16 |
18 |
24 |
6.5 |
| 3/8 |
16 |
24 |
7.9 |
| 7/16 |
14 |
20 |
9.2 |
| 1/2 |
13 |
- |
10.5 |
| 1/2ww |
12 |
20 |
10.5 |
| 9/16 |
12 |
18 |
12.0 |
| 5/8 |
11 |
18 |
13.4 |
| 3/4 |
10 |
16 |
16.4 |
7/8 |
9 |
14 |
19.25 |
1" |
8 |
14 |
22.0 |