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Operation
1)
Hammer drilling operation
:
When drilling in concrete, granite,
tile,
etc.,
turn the knob
so
that the
a
mark
on the knob points to the mark. Be
sure to use
a
tungsten-carbide tipped
bit.
To
position
a
hole accurately, start
the tool slowly and then increase the
speed gradually.
Do
not apply more
pressure when the hole becomes clogged
After drilling the hole, use the blow-out
bulb to clean the dust out of the hole.
Knob
-
I
2)
Drilling operation
:
When drilling in wood, metal or plastic
materials, turn the knob
so
that the
mark on the knob points to the
mark.
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