Dremel 8220 Operating/Safety Instructions Manual page 20

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 20
Engraving Cutters
This group has a wide variety of sizes and
shapes, and are made for intricate work on
ceramics (greenware), wood carvings,
jewelry and scrimshaw. They often are used
in making complicat ed printed circuit boards.
They should not be used on steel and other
very hard materials but are excellent on
wood, plastic and soft metals. 1/8" shank.
Structured Tooth
Tungsten Carbide Cutters
Fast cutting, needle-sharp teeth for greater
material removal with minimum loading. Use
on fiberglass, wood, plastic, epoxy and
rubber. 1/8" shank.
Aluminum Oxide Grinding Stones
(red/brown)
Round, pointed, flat — you name the shape
and there is one available in this category.
These are made of aluminum oxide and
cover virtually every possible kind of grinding
application. Use them for sharpening lawn
mower blades, screwdriver tips, knives,
scissors, chisels and other cutting tools. Use
to remove flash from metal castings,
deburring any metal after cutting, smoothing
welded joints, grinding off rivets and re mov ing
rust. These grinding stones can be resharped
with a dressing stone. In machine shops, high
speed drills and cut ters normally are ground
with aluminum oxide wheels. 1/8" shank.
Dremel Accessories (Continued)
Silicon Carbide Grinding Stones
(blue/green)
Tougher than aluminum oxide points, these
are made es pecially for use on hard
materials such as glass and ce ramics.
Typical uses might be the removal of stilt
marks and excess glaze on ceramics and
engraving on glass. 1/8" shank.
Diamond Wheel Points
Excellent for fine detail work on wood, jade,
ceramic, glass and other hard material. Bits
are covered with diamond particles. 1/8"
shanks. (Not recommended for drilling)
Wire Brushes
Three different shapes of wire brushes are
available. For best results wire brushes
should be used at speeds not greater than
15,000 RPM. Refer to Operating Speeds
section for proper tool speed setting. The
three shapes come in three different
materials: stainless steel, brass and carbon
wire. The stainless steel perform well on
pewter, aluminum, stainless steel, and other
metals, without leaving "after-rust". Brass
brushes are non sparking, and softer than
steel; making them good for use on soft
metal like gold, cooper and brass. The
carbon wire brushes are good for general
purpose cleaning.
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