S O M T A P 1 2 C A T A L O G U E
43
STRAIGHT
SHANK
DRILLS
BRIGHT
FINISH
HSS
139
Suited Materials
Properties
Code
DIN
333
M
Centre Drills - Form R
d
Code
l
2
l
1
d
1
3.35
4.25
5.3
6.7
8.5
10.6
13.2
17
21.2
4
5
6.3
8
10
12.5
16
20
25
3.15
4
5
6.3
8
10
12.5
16
20
(1.25)
1.6
2
2.5
3.15
4
(5)
6.3
(8)
3.15
4
5
6.3
8
10
12.5
16
20
r
max.
min.
31.5
35.5
40
45
50
56
63
71
80
1390125
1390160
1390200
1390250
1390315
1390400
1390500
1390630
1390800
( ) Non-recommended sizes, and should be avoided whenever possible.
GENERAL
FORM
R
