|
|
Ø
en
mm |
distància
entre
centres |
gruix
en
mm |
coeficient
de
perforació |
|
2,0 |
4,0 |
2 |
23 |
|
2,5 |
5,0 |
2
a
2,5 |
23 |
|
3,0 |
6,0 |
2
a
3 |
23 |
|
4,0 |
8,0 |
2
a
4 |
23 |
|
5,0 |
10,0 |
2
a
5 |
23 |
|
6,0 |
11,3 |
2
a
6 |
25 |
|
7,0 |
13,0 |
2
a
7 |
26 |
|
8,0 |
15,2 |
2
a
8 |
25 |
|
9,0 |
17,0 |
2
a
8 |
25 |
|
10,0 |
18,0 |
2
a
8 |
28 |
|
12,0 |
20,0 |
2
a
8 |
32 |
|
14,0 |
24,0 |
2
a
8 |
32 |
|
15,0 |
24,0 |
2
a
8 |
35 |
|
18,0 |
28,0 |
2
a
8 |
37 |
|
20,0 |
30,0 |
2
a
8 |
40 |
|
25,0 |
36,0 |
2
a
8 |
43 |
|
30,0 |
44,0 |
2
a
8 |
42 |
|
35,0 |
45,0 |
2
a
8 |
55 |
|
|