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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. B e
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.
9
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