18
DRILLING – cont’d
WARNING:
Be prepared for
binding and bit breakthrough. When
these situations occur, the drill bit has
the tendency to grab the workpiece.
This action will kick the drill opposite to
the direction of drill bit rotation and
could cause loss of control when
breaking through material as you
complete drilling the hole. If you are not
prepared, this loss of control can result
in possible serious injury.
When drilling metals, use a light oil on the
drill bit to keep it from overheating. The oil
will prolong the life of the drill bit and
improve the drill cutting action. If the bit
jams in the workpiece or if the drill stalls,
release the trigger switch immediately.
Remove the bit from the workpiece and
determine the reason for jamming.
DRILLING IN CONCRETE
WARNING:
Always use a face
shield when drilling in concrete.
Always use the impact mode and
slower
drill speeds for faster drilling in concrete.
Always use carbide tipped masonry bits.
CHUCK REMOVAL
The drill chuck must be removed in order
to use some accessories. To remove the
chuck:
1. Unplug the drill from the power
source.
!
ASSEMBLY AND OPERATION
!
Summary of Contents for 80159
Page 21: ...PARTS DIAGRAM MODEL 80159 21...
