HEIDENHAIN SW 688945-03 - Manual (Page 498)

498 Tool and technology database
7.
3 T
ool data
Counterbore
Select "New tool."
Select special tools.
Select special drilling tools.
Select counterbore.
The help graphics illustrate the dimensions of the tools.
Special parameters for counterbores
DV
Hole diameter
DH Stud diameter
ZA Stud length
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.