D3X RS
D3X RS Operator’s Manual
11
Fig.
5
shows
how
annular
cutters
operate.
As
the
cutter
penetrates the workpiece,
the pilot pin recesses into the arbor and tightens the spring. As a result, after
the
cutter
goes
through
the
entire thickness, the slug core is expelled from the cutter. When
pressed, the pilot pin also allows application of coolant to the inner surface of the
annular cutter.
Fig. 5.
Annular cutters operation
Annular cutters are designed to make only through holes shown in Fig. 6. When
drilling incomplete through holes the pilot pin must not be used.
Fig. 6.
Types of holes to make with annular cutters
Incomplete through holes
Complete through holes
Slug core
Spring
Pilot pin
Annular cutter
Arbor
