| METRIC
COARSE SIZES |
|
TAP |
DRILL |
| 1mm
x .25 |
.75mm |
1.1
x .25 |
.85 |
| 1.2
x .25 |
.95 |
1.4
x .3 |
1.1 |
| 1.6
x .35 |
1.25 |
1.7
x .35 |
1.3 |
| 1.8
x .35 |
1.45 |
2
x .4 |
1.6 |
| 2.2
x .45 |
1.75 |
2.5
x .45 |
2.05 |
| 3
x .5 |
2.5 |
3.5
x .6 |
2.9 |
| 4
x .7 |
3.3 |
4.5
x .75 |
3.7 |
| 5
x .8 |
4.2 |
6
x 1 |
5 |
| 7
x 1 |
6 |
8
x 1.25 |
6.8 |
| 9
x 1.25 |
7.8 |
10
x 1.5 |
8.5 |
| 11
x 1.5 |
9.5 |
12
x 1.75 |
10.2 |
| 14
x 2 |
12 |
16
x 2 |
14 |
| 18
x 2.5 |
15.5 |
20
x 2.5 |
17.5 |
| 22
x 2.5 |
19.5 |
24
x 3 |
21 |
| 27
x 3 |
24 |
30
x 3.5 |
26.5 |
| 33
x 3.5 |
29.5 |
36
x 4 |
32 |
| 39
x 4 |
35 |
|
|
| METRIC
FINE SIZES |
|
TAP |
DRILL |
| 4
mm x .35 |
3.6mm |
4
x .5 |
3.5 |
| 5
x .5 |
4.5 |
6
x .5 |
5.5 |
| 6
x .75 |
5.25 |
7
x .75 |
6.25 |
| 8
x .5 |
7 |
8
x .75 |
7.25 |
| 8
x 1 |
7.5 |
9
x 1 |
8 |
| 10
x .75 |
9.25 |
10
x 1 |
9 |
| 10
x 1.25 |
8.8 |
11
x 1 |
10 |
| 12
x .75 |
11.25 |
12
x 1 |
11 |
| 12
x 1.5 |
10.5 |
14
x 1 |
13 |
| 14
x 1.25 |
12.8 |
14
x 1.5 |
12.5 |
| 16
x 1 |
15 |
16
x 1.5 |
14.5 |
| 18
x 1 |
17 |
18
x 2 |
16 |
| 20
x 1 |
19 |
20
x 1.5 |
18.5 |
| 20
x 2 |
18 |
22
x 1 |
21 |
| 22
x 1.5 |
20.5 |
22
x 2 |
20 |
| 24
x 1.5 |
22.5 |
24
x 2 |
22 |
| 26
x 1.5 |
24.5 |
27
x 1.5 |
25.5 |
| 27
x 2 |
25 |
28
x 1.5 |
26.5 |
| 30
x 1.5 |
28.5 |
30
x 2 |
28 |
| 33
x 2 |
31 |
36
x 3 |
33 |
| 39
x 3 |
36 |
|