HEIDENHAIN iTNC 530 (340 49x-02) Pilot - Manual (Page 76)

76
D
e
fining Machining O
p
erations
Additional parameters on the drilling parameters detail form:
8 Predrilled diameter: Enter if pre-drilled holes are to be machined
again. This allows you to rough-mill holes more than twice as large as
the tool diameter.
Globally effective parameters on the global data detail form:
8 Set-up clearance
8 2nd set-up clearance
8 Feed rate for traversing between machining positions