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DIN 340 Standard Dimensions for Parallel shank twist drills, long series

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Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source DIN 340
Publication date: 11/2006 Replaces 03/1978 edition
d d: range l1 l2
from to
1 0,95 1,06 56 33

1,1

 1,06 1,18 60 37
1,2-1,3 1,18 1,32 65 41
1,4-1,5 1,32 1,5 70 45
1,6-1,7 1,5 1,7 76 50
1,8-1,9 1,7 1,9 80 53
2-2,1 1,9 2,12 85 56
2,2-2,3 2,12 2,36 90 59
2,4-2,5-2,6 2,36 2,65 95 62
2,7-2,8-2,9-3 2,65 3 100 66
3,1-3,2-3,3 3 3,35 106 69
3,4-3,5-3.6-3,7 3,35 3,75 112 73
3,8-3,9-4-4,1-4,2 3,75 4,25 119 78
4.3-4.4-4.5-4.6-4.7 4,25 4,75 126 82
4.8-4.9-5-5.1-5.2-5.3 4.75 5.3 132 87
5.4-5.5-5.6-5.7-5.8-5.9-6 5.3 6 139 91
6.1-6.2-6.3-6.4-6.5-6.6-6.7 6 6.7 148 97
6.8-6.9-7-7.1-7.2-7.3-7.4-7.5 6.7 7.5 156 102
7.6-7.7-7.8-7.9-8-8.1-8.2-8.3-8.4-8.5 7.5 8.5 165 109
8.6-8.7-8.8-8.9-9-9.1-9.2-9.3-9.4-9.5 8.5 9.5 175 115
9.6-9.7-9.8-9.9-10-10.1-10.2-10.3-10.4-10.5-10.6 9.5 10.6 184 121
10.7-10.8-10.9-11-11.1-11.2-11.3-11.4-11.5-11.6-11.7-11.8 10.6 11.8 195 128
11.9-12-12.1-12.2-12.3-12.4-12.5-12.6-12.7-12.8-12.9-13-13.1-13.2 11.8 13.2 205 134
13.3-13.4-13.5-13.6-13.7-13.8-13.9-14 13.2 14 214 140
14.25-14.5-14.75-15 14 15 220 144
15.25-15.5-15.75-16 15 16 227 149
16.25-16.5-16.75-17 16 17 235 154
17.25-17.5-17.75-18 17 18 241 158
18.25-18.5-18.75-19 18 19 247 162
19.25-19.5-19.75-20 19 20 254 166

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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