Publicidad
Idiomas disponibles
Idiomas disponibles
Drilling Wood
Be certain workpiece is clamped or anchored
firm ly. Always apply pressure in a straight line
with the drill bit. Maintain enough pressure
to keep the drill "biting".
When drilling holes in wood, twist bits can be
used. Twist bits may overheat unless pulled
out frequently to clear chips from flutes.
Use a "back-up" block of wood for work that
is likely to splinter, such as thin materials.
You will drill a cleaner hole if you ease up
on the pressure just before the bit breaks
through the wood. Then complete the hole
from the back side.
Drilling Metal
There are two rules for drilling hard materi-
als. First, the harder the material, the greater
the pres sure you need to apply to the tool.
Second, the harder the material, the slower
the speed. Here are a couple of tips for drill-
ing in metal. Lubri cate the tip of the bit occa-
sionally with cutting oil except when drilling
soft metals such as alu minum, cop per or cast
iron. If the hole to be drilled is fairly large,
drill a smaller hole first, then enlarge to the
required size, it's often faster in the long run.
Main tain enough pressure to assure that the
bit does not just spin in the hole. This will
dull the bit and greatly shorten its life.
Drilling Masonry
(Model GSB18V-400 only)
Soft materials such as brick are relatively
easy to drill. Concrete however, will require
much more pressure to keep the bit from
spinning. Be sure to use carbide tip bits for
all masonry work.
Sanding and Polishing
equal to, or higher than the Max. Rated
RPM of the tool, as marked on the name-
plate. Using accessories with lower RPM rat-
ing than Max. RPM of the tool, may cause in-
jury or damage to property.
2610067354 GSR18V-400 02-22.indd 15
Operating Tips
Only
use
accessories
having Max. Rated RPM
Fine sanding and polishing re quire "touch".
Select the most efficient speed.
excess string that secures the bonnet is
tucked well within the bonnet during opera-
tion.
Wire Brushes
1. Let the tips of a wire brush do the work.
Operate the brush with the lightest pres-
sure so only the tips of the wire come in
contact with the work.
2. If heavier pressures are used, the wires
will be overstressed, resulting in a wiping
action; and if this is continued, the life of
the brush will be shortened due to wire
fatigue.
3. Apply the brush to the work in such a way
that as much of the brush face as pos-
sible is in full contact with the work. Ap-
plying the side or edge of the brush to
the work will result in wire breakage and
shortened brush life.
CORRECT: Wire tips doing the work.
INCORRECT: Excessive pressure can cause
wire breakage.
-15-
When using polishing bon-
nets, always be sure the
2/17/22 1:19 PM
Publicidad
