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Hammer drilling operation
Position the bit
at
the location for the
hole, then pull the trigger.
Do
not force the tool. Light pressure
gives
best results. Keep the tool in position and
prevent
it
from slipping away from the
hole.
Do
not apply more pressure when the hole
becomes clogged with chips or particles.
Instead, run
the
tool
at
an idle, then re-
move from the hole.
By
repeating this
several times, the hole will be cleaned out.
CAUTION
:
When the bit begins to break through concrete or if the bit strikes reinforcing rods em-
bedded in concrete, the tool may react dangerously. Maintain good balance and safe
footing while holding the tool firmly with both hands to prevent dangerous reaction.
Core bit (optional accessory)
[When using the center bit]
Screw the core bit
on
the adapter. Install
the adapter with
the
core bit in the tool in
the same manner
as
a
drill bit.
Install the center bit.
Rest
the core bit on the concrete and turn
the tool on. Once the core bit has cut
a
shallow groove into the concrete, remove
the center bit. Then resume drilling.
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