Page 370 - Carbide drills I Thread cutting tools 2023

Core hole drill sizes

M MF

ø P Max. dimension Standard Critical material* ø P Max. dimension Standard Critical material*
1.0 0.25 0.785 0.75 0.80 * 2.5 0.35 2.221 2.15 2.20
1.2 0.25 0.985 0.95 1.00 * 3.0 0.35 2.721 2.65 2.70
1.4 0.30 1.142 1.10 1.15 * 3.5 0.35 3.221 3.15 3.20
1.6 0.35 1.321 1.25 1.30 4.0 0.50 3.599 3.50 3.60 *
1.7 0.35 1.421 1.35 1.40 5.0 0.50 4.599 4.50 4.60 *
1.8 0.35 1.521 1.45 1.50 6.0 0.50 5.599 5.50 5.60 *
2.0 0.40 1.679 1.60 1.70 8.0 0.50 7.599 7.50 7.60 *
2.2 0.45 1.838 1.75 1.85 * 10.0 0.50 9.599 9.50 9.60 *
2.3 0.40 1.979 1.90 1.95 6.0 0.75 5.378 5.20 5.30
2.5 0.45 2.138 2.05 2.10 7.0 0.75 6.378 6.25 6.30
2.6 0.45 2.238 2.15 2.20 8.0 0.75 7.378 7.20 7.30
3.0 0.50 2.599 2.50 2.60 * 10.0 0.75 9.378 9.20 9.30
3.5 0.60 3.010 2.90 3.00 12.0 0.75 11.378 11.30 11.40 *
4.0 0.70 3.422 3.30 3.40 14.0 0.75 13.378 13.30 13.40 *
4.5 0.75 3.878 3.75 3.90 * 16.0 0.75 15.378 15.30 15.40 *
5.0 0.80 4.334 4.20 4.30 8.0 1.00 7.153 7.00 7.10
6.0 1.00 5.153 5.00 5.10 9.0 1.00 8.153 8.00 8.10
7.0 1.00 6.153 6.00 6.10 10.0 1.00 9.153 9.00 9.10
8.0 1.25 6.912 6.80 6.90 12.0 1.00 11.153 11.00 11.10
10.0 1.50 8.676 8.50 8.60 13.0 1.00 12.153 12.00 12.10
12.0 1.75 10.441 10.20 10.40 14.0 1.00 13.153 13.00 13.10
14.0 2.00 12.210 12.00 12.20 15.0 1.00 14.153 14.00 14.10
16.0 2.00 14.210 14.00 14.20 16.0 1.00 15.153 15.00 15.10
18.0 2.50 15.744 15.50 15.70 17.0 1.00 16.153 16.00 16.10
20.0 2.50 17.744 17.50 17.70 18.0 1.00 17.153 17.00 17.10
22.0 2.50 19.744 19.50 19.70 20.0 1.00 19.153 19.00 19.10
24.0 3.00 21.252 21.00 21.20 10.0 1.25 8.912 8.80 8.90
27.0 3.00 24.252 24.00 24.20 12.0 1.25 10.912 10.80 10.90
30.0 3.50 26.771 26.50 26.70 14.0 1.25 12.912 12.80 12.90
33.0 3.50 29.771 29.50 29.70 16.0 1.25 14.912 14.80 14.90
36.0 4.00 32.270 32.00 32.20 12.0 1.50 10.676 10.50 10.70 *
39.0 4.00 35.270 35.00 35.20 14.0 1.50 12.676 12.50 12.70 *
42.0 4.50 37.799 37.50 37.70 16.0 1.50 14.676 14.50 14.70 *
18.0 1.50 16.676 16.50 16.70 *
20.0 1.50 18.676 18.50 18.70 *
22.0 1.50 20.676 20.50 20.70 *
24.0 1.50 22.676 22.50 22.70 *

* The given dimension is out of norm

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