STRAIGHT
SHANK
DRILLS
S O M T A P 1 2 C A T A L O G U E
42
Centre Drills - Form B
( ) Non-recommended sizes, and should be avoided whenever possible.
1
(1.25)
1.6
2
2.5
3.15
4
(5)
6.3
(8)
10
Code
l
2
l
1
d
d
1
d
2
4
5
6.3
8
10
11.2
14
18
20
25
31.5
1.3
1.6
2
2.5
3.1
3.9
5
6.3
8
10.1
12.8
2.12
2.65
3.35
4.25
5.3
6.7
8.5
10.6
13.2
17
21.2
35.5
40
45
50
56
60
67
75
80
100
125
1380100
1380125
1380160
1380200
1380250
1380315
1380400
1380500
1380630
1380800
1381000
BRIGHT
FINISH
HSS
138
Suited Materials
Properties
Code
DIN
333
M
GENERAL
FORM
B
