Operation Manual

HEIDENHAIN CNC PILOT 640 523

7.3 Tool data

NC center drill

Select "New tool."

Select special tools.

Select special drilling tools.

Select NC center drill.

The help graphics illustrate the dimensions of the tools.

Special parameters for NC center drills

DV Hole diameter

BW Point angle

For further tool parameters, see Seite 516.

For drilling operations with constant cutting speed, the

hole diameter (DV) is used to calculate the spindle

speed.