Kaltenbach KPS Series, Manual, Page: 122 / 268

KPS SERIES
Technical Documentation
M-UK-KPS--06
11/02/03 Page 122 of 138
KALTENBACH
6.2.15 Grinding the drills
A new grinding geometry has been developed for drills that are used for drilling into
steel profiles. This geometry of the drill makes that all advantages mentioned above
are realized.
The main points of the grinding are:
-
The grinding of the top with an angle of app. 10°
-
The taking out or grinding away of the web of the drill
This can be done by the user provided that a suitable grinding machine is available;
good results are achieved with a KALTENBACH grinding machine type BSG 60.
6.2.16
Grinding instructions
A B C D
mm mm Clearance Drill point
10 3,4 2,5° 2,5
15 4,0 2,5° 2,5
18 4,5 2,5° 2,5
20 5,2 3° 3
24 6,0 3° 3
28 6,5 3° 4
30 7,0 3,5° 4