Dremel 8220 Operating/Safety Instructions Manual page 19

DM 2610022202 02-12_DM 2610022202 01-12.qxp 2/16/12 1:49 PM Page 19
Brushing Pressure
1. Remember, the tips of a wire brush do the
work. Operate the brush with the lightest
pressure 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;
INCORRECT:
Excessive pressure can cause wire breakage.
Polishing Accessories
These include an impregnated polishing point
and an impregnated polishing wheel for
bringing metal surfaces to smooth finish; a felt
polishing tip and felt polishing wheel, and cloth
polishing wheel, all used for polishing plastics,
metals, jewelry and small parts. Also included
in this group is a polishing compound (No. 421)
for use with the felt and cloth polishers.
Polishing points make a very smooth surface,
but a high luster is obtained using felt or cloth
wheels and polishing compound. For best
results polishing accessories should be
used at speeds not greater than 15,000
RPM.
No polishing compound is needed when using
the 425 Polishing Wheel.
Aluminum Oxide Abrasive Wheels
Use to remove paint, deburr metal, polish
stainless steel and other metals. Available in
medium grit. 1/8" shank.
All manuals and user guides at all-guides.com
Dremel Accessories (Cont.)
19
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 possible is in
full contact with the work. Applying 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.
Sanding Accessories
Sanding discs in fine, medium and coarse
grades are made to fit mandrel No. 402. They
can be used for nearly any small sanding job
you might have, from model making to fine
furniture finishing. In addition, there is the drum
sander, a tiny drum which fits into the Rotary
Tool and makes it possible to shape wood,
smooth fiberglass, sand inside curves and
other difficult places, and other sanding jobs.
You replace the sanding bands on the drum as
they become worn and lose their grit. Bands
come in fine medium and coarse grades.
Flapwheels grind and polish flat or contoured
surfaces. They are used most effectively as a
finishing sander after heavier surface sanding
and material removal is completed. Flapwheels
come in fine and coarse grades. Buffs are a
great finishing accessory for cleaning and light
sanding. They work effectively on metal, glass,
wood, aluminum and plastics. Coarse and
medium buffs are sold together. All buffs are
sold individually. Do not exceed 15,000 RPM
in speed. 1/8" shank.