METRIC THREAD - Drill & Tap Chart
| Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) |
|
M1 x 0.25 |
0.75 |
M3.5 x 0.6 |
2.90 |
M12 x 1.75 |
10.20 |
M36 x 4 |
32.00 |
|
M1.1 x 0.25 |
0.85 |
M4 x 0.7 |
3.30 |
M14 x 2 |
12.00 |
M39 x 4 |
35.00 |
|
M1.2 x 0.25 |
0.95 |
M4.5 x 0.75 |
3.70 |
M16 x 2 |
14.00 |
M42 x 4.5 |
37.50 |
|
M1.4 x 0.3 |
1.10 |
M5 x 0.8 |
4.20 |
M18 x 2.5 |
15.50 |
M45 x 4.5 |
40.50 |
|
M1.6 x 0.35 |
1.25 |
M6 x 1 |
5.00 |
M20 x 2.5 |
17.50 |
M48 x 5 |
43.00 |
|
M1.8 x 0.35 |
1.45 |
M7 x 1 |
6.00 |
M22 x 2.5 |
19.50 |
M52 x 5 |
47.00 |
|
M2 x 0.4 |
1.60 |
M8 x 1.25 |
6.80 |
M24 x 3 |
21.00 |
M56 x 5.5 |
50.50 |
|
M2.2 x 0.45 |
1.75 |
M9 x 1.25 |
7.80 |
M27 x 3 |
24.00 |
M60 x 5.5 |
54.50 |
|
M2.5 x 0.45 |
2.05 |
M10 x 1.5 |
8.50 |
M30 x 3.5 |
26.50 |
M64 x 6 |
58.00 |
|
M3 x 0.5 |
2.50 |
M11 x 1.5 |
9.50 |
M33 x 3.5 |
29.50 |
M68 x 6 |
62.00 |
| Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) | Thread Size | Tap Drill (mm) |
|
M4 x 0.35 |
3.60 |
M10 x 0.75 |
9.25 |
M16 x 1 |
15.0 |
M24 x 1.5 |
22.5 |
|
M4 x 0.5 |
3.50 |
M10 x 1 |
9.0 |
M16 x 1.5 |
15.0 |
M24 x 2 |
22.0 |
|
M5 x 0.5 |
4.50 |
M10 x 1.25 |
8.8 |
M18 x 1 |
17.0 |
M26 x 1.5 |
24.5 |
|
M6 x .5 |
5.50 |
M11 x 1 |
10.0 |
M18 x 2 |
16.0 |
M27 x 1.5 |
25.5 |
|
M6 x .75 |
5.25 |
M12 x .75 |
11.25 |
M20 x 1 |
19.0 |
M27 x 2 |
25.0 |
|
M7 x .75 |
6.25 |
M12 x 1 |
11.0 |
M20 x 1.5 |
18.5 |
M28 x 1.5 |
26.5 |
|
M8 x .5 |
7.50 |
M12 x 1.5 |
10.5 |
M20 x 2 |
18.0 |
M30 x 1.5 |
28.5 |
|
M8 x .75 |
7.25 |
M14 x 1 |
13.0 |
M22 x 1 |
21.0 |
M30 x 2 |
28.0 |
|
M8 x 1 |
7.00 |
M14 x 1.25 |
12.8 |
M22 x 1.5 |
20.5 |
M33 x 2 |
31.0 |
|
M9 x 1 |
8.00 |
M14 x 1.5 |
12.5 |
M22 x 2 |
20.0 |
M36 x 3 |
33.0 |
Steven L Henderson's Cutting Edge Designs