Metric fine tapping drill sizes.



Size mm
nominal Ø		 Pitch mm Tapping drill
Ø mm		 Tapping drill
Ø "
1.0 0.20 0.80 0.0315
1.1 0.20 0.90 0.0354
1.2 0.20 1.00 0.0394
1.4 0.20 1.20 0.0472
1.6 0.20 1.40 0.0551
1.8 0.20 1.60 0.0630
2.0 0.25 1.75 0.0689
2.2 0.25 1.95 0.0768
2.5 0.35 2.15 0.0846
3.0 0.35 2.65 0.1043
3.5 0.35 3.15 0.1240
4.0 0.50 3.50 0.1378
4.5 0.50 4.00 0.1575
5.0 0.50 4.50 0.1772
6.0 0.75 5.25 0.2067
7.0 0.75 6.25 0.2461
8.0 0.75 7.25 0.2854
8.0 1.00 7.50 0.2953
9.0 0.75 8.25 0.3248
9.0 1.00 8.00 0.3150
10.0 0.75 9.25 0.3642
10.0 1.00 9.00 0.3543
10.0 1.25 8.80 0.3465
11.0 0.75 10.25 0.4035
11.0 1.00 10.00 0.3937
12.0 1.00 11.00 0.4331
12.0 1.50 10.50 0.4134
14.0 1.00 13.00 0.5118
14.0 1.25 12.80 0.5039
14.0 1.50 12.50 0.4921
15.0 1.00 14.00 0.5512
15.0 1.50 13.50 0.5315
16.0 1.00 15.00 0.5906
16.0 1.50 14.50 0.5709
17.0 1.00 16.00 0.6299
17.0 1.50 15.50 0.6103
18.0 1.00 17.00 0.6693
18.0 1.50 16.50 0.6496
18.0 2.00 16.00 0.6299
20.0 1.00 19.00 0.7480
20.0 1.50 18.50 0.7283
20.0 2.00 18.00 0.7087
22.0 1.00 21.00 0.8268
22.0 1.50 20.50 0.8071
22.0 2.00 20.00 0.7874
24.0 1.00 23.00 0.9055
24.0 1.50 22.50 0.8858
24.0 2.00 22.00 0.8661
25.0 1.00 24.00 0.9449
25.0 1.50 23.50 0.9252
25.0 2.00 23.00 0.9055
26.0 1.50 24.50 0.9646
27.0 1.00 26.00 1.0236
27.0 1.50 25.50 1.0039
27.0 2.00 25.00 0.9843
28.0 1.00 27.00 1.0630
28.0 1.50 26.50 1.0433
28.0 2.00 26.00 1.0236