HEIDENHAIN SW 688945-03 - Manual (Page 499)

HEIDENHAIN CNC PILOT 620/640 499
7.
3 T
ool data
Countersink
Select "New tool."
Select special tools.
Select special drilling tools.
Select counterbore.
The help graphics illustrate the dimensions of the tools.
Special parameters for countersinks
DV
Hole diameter
DH Stud diameter
BW Drill angle
For further tool parameters, see page 489.
For drilling operations with constant cutting speed, the
drilling diameter (DV)
is used to calculate the spindle
speed.